diff --git a/deno.json b/deno.json
index ed7422e..97ab295 100644
--- a/deno.json
+++ b/deno.json
@@ -14,6 +14,8 @@
     "test:unit": "deno test -A --no-check tests/unit/",
     "test:integration": "deno test -A --no-check tests/integration/",
     "test:e2e": "deno test -A --no-check tests/e2e/",
+    "test:coverage": "deno test -A --no-check --coverage=coverage tests/ && deno coverage coverage --exclude=tests/",
+    "test:coverage:html": "deno test -A --no-check --coverage=coverage tests/ && deno coverage coverage --exclude=tests/ --html",
     "migrate": "node_modules/.bin/drizzle-kit migrate"
   },
   "lint": {
diff --git a/routes/(apps)/admin/api/enseignements.ts b/routes/(apps)/admin/api/enseignements.ts
index 06408bc..cb2ab47 100644
--- a/routes/(apps)/admin/api/enseignements.ts
+++ b/routes/(apps)/admin/api/enseignements.ts
@@ -26,11 +26,12 @@ export const handler: Handlers<null, AuthenticatedState> = {
       return FORBIDDEN;
     }
 
-    const body: {
-      idProf: string;
-      idModule: string;
-      idPromo: string;
-    } = await request.json();
+    let body: { idProf: string; idModule: string; idPromo: string };
+    try {
+      body = await request.json();
+    } catch {
+      return new Response(null, { status: 500 });
+    }
 
     if (!body.idProf || !body.idModule || !body.idPromo) {
       return new Response(null, { status: 400 });
diff --git a/routes/(apps)/admin/api/modules.ts b/routes/(apps)/admin/api/modules.ts
index 2cb2fe7..bdb37b9 100644
--- a/routes/(apps)/admin/api/modules.ts
+++ b/routes/(apps)/admin/api/modules.ts
@@ -31,9 +31,14 @@ export const handler: Handlers<null, AuthenticatedState> = {
       return new Response(null, { status: 403 });
     }
 
-    const body: { id: string; nom: string } = await request.json();
+    let body: { id: string; nom: string };
+    try {
+      body = await request.json();
+    } catch {
+      return new Response(null, { status: 500 });
+    }
 
-    if (!body.id || !body.nom) {
+    if (!body.id || !body.id.trim() || !body.nom || !body.nom.trim()) {
       return new Response(null, { status: 400 });
     }
 
diff --git a/routes/(apps)/admin/api/modules/[idModule].ts b/routes/(apps)/admin/api/modules/[idModule].ts
index 6f17dfe..d3d9467 100644
--- a/routes/(apps)/admin/api/modules/[idModule].ts
+++ b/routes/(apps)/admin/api/modules/[idModule].ts
@@ -33,7 +33,16 @@ export const handler: Handlers<null, AuthenticatedState> = {
     request: Request,
     context: FreshContext<AuthenticatedState>,
   ): Promise<Response> {
-    const body: { nom: string } = await request.json();
+    let body: { nom: string };
+    try {
+      body = await request.json();
+    } catch {
+      return new Response(null, { status: 500 });
+    }
+
+    if (typeof body.nom !== "string") {
+      return new Response(null, { status: 400 });
+    }
 
     const [updated] = await db
       .update(modules)
diff --git a/routes/(apps)/admin/api/users.ts b/routes/(apps)/admin/api/users.ts
index d2fbd56..61317d7 100644
--- a/routes/(apps)/admin/api/users.ts
+++ b/routes/(apps)/admin/api/users.ts
@@ -27,10 +27,17 @@ export const handler: Handlers<null, AuthenticatedState> = {
     request: Request,
     _context: FreshContext<AuthenticatedState>,
   ): Promise<Response> {
-    const body: { id: string; nom: string; prenom: string; idRole: number } =
-      await request.json();
+    let body: { id: string; nom: string; prenom: string; idRole: number };
+    try {
+      body = await request.json();
+    } catch {
+      return new Response(null, { status: 500 });
+    }
 
-    if (!body.id || !body.nom || !body.prenom) {
+    if (
+      !body.id || !body.id.trim() || !body.nom || !body.nom.trim() ||
+      !body.prenom || !body.prenom.trim()
+    ) {
       return new Response(null, { status: 400 });
     }
 
diff --git a/routes/(apps)/notes/api/ajustements/[numEtud]/[idUE].ts b/routes/(apps)/notes/api/ajustements/[numEtud]/[idUE].ts
index c9b3ab0..a165f44 100644
--- a/routes/(apps)/notes/api/ajustements/[numEtud]/[idUE].ts
+++ b/routes/(apps)/notes/api/ajustements/[numEtud]/[idUE].ts
@@ -2,7 +2,7 @@ import { FreshContext, Handlers } from "$fresh/server.ts";
 import { db } from "$root/databases/db.ts";
 import { ajustements } from "$root/databases/schema.ts";
 import { AuthenticatedState } from "$root/defaults/interfaces.ts";
-import { eq } from "npm:drizzle-orm@0.45.2";
+import { and, eq } from "npm:drizzle-orm@0.45.2";
 
 const NOT_FOUND = new Response(
   JSON.stringify({ error: "Ajustement introuvable" }),
@@ -31,7 +31,7 @@ export const handler: Handlers<null, AuthenticatedState> = {
     const ajustement = await db
       .select()
       .from(ajustements)
-      .where(eq(ajustements.numEtud, numEtud), eq(ajustements.idUE, idUE))
+      .where(and(eq(ajustements.numEtud, numEtud), eq(ajustements.idUE, idUE)))
       .then((rows) => rows[0] ?? null);
 
     if (!ajustement) return NOT_FOUND;
@@ -69,7 +69,7 @@ export const handler: Handlers<null, AuthenticatedState> = {
     const [updated] = await db
       .update(ajustements)
       .set({ valeur: body.valeur })
-      .where(eq(ajustements.numEtud, numEtud), eq(ajustements.idUE, idUE))
+      .where(and(eq(ajustements.numEtud, numEtud), eq(ajustements.idUE, idUE)))
       .returning();
 
     if (!updated) return NOT_FOUND;
@@ -97,7 +97,7 @@ export const handler: Handlers<null, AuthenticatedState> = {
 
     const [deleted] = await db
       .delete(ajustements)
-      .where(eq(ajustements.numEtud, numEtud), eq(ajustements.idUE, idUE))
+      .where(and(eq(ajustements.numEtud, numEtud), eq(ajustements.idUE, idUE)))
       .returning();
 
     if (!deleted) return NOT_FOUND;
diff --git a/routes/(apps)/notes/api/notes.ts b/routes/(apps)/notes/api/notes.ts
index 22d387e..b7fd580 100644
--- a/routes/(apps)/notes/api/notes.ts
+++ b/routes/(apps)/notes/api/notes.ts
@@ -49,6 +49,12 @@ export const handler: Handlers = {
         });
       }
 
+      if (typeof note !== "number" || note < 0 || note > 20) {
+        return new Response("Champ 'note' doit être un nombre entre 0 et 20", {
+          status: 400,
+        });
+      }
+
       const result = await db.insert(notes).values({ note, numEtud, idModule })
         .returning();
 
diff --git a/routes/(apps)/notes/api/ue-modules.ts b/routes/(apps)/notes/api/ue-modules.ts
index 8cd48bc..1a825a6 100644
--- a/routes/(apps)/notes/api/ue-modules.ts
+++ b/routes/(apps)/notes/api/ue-modules.ts
@@ -47,6 +47,12 @@ export const handler: Handlers = {
         );
       }
 
+      if (typeof coeff !== "number" || coeff < 0) {
+        return new Response("Champ 'coeff' doit être un nombre >= 0", {
+          status: 400,
+        });
+      }
+
       const result = await db.insert(ueModules).values({
         idModule,
         idUE,
diff --git a/routes/(apps)/notes/api/ues.ts b/routes/(apps)/notes/api/ues.ts
index 757245c..92242da 100644
--- a/routes/(apps)/notes/api/ues.ts
+++ b/routes/(apps)/notes/api/ues.ts
@@ -24,7 +24,7 @@ export const handler: Handlers = {
       const body = await request.json();
       const { nom } = body;
 
-      if (!nom) {
+      if (!nom || !nom.trim()) {
         return new Response("Champ 'nom' manquant", { status: 400 });
       }
 
diff --git a/tests/e2e/ajustements_test.ts b/tests/e2e/ajustements_test.ts
new file mode 100644
index 0000000..2ca2ef7
--- /dev/null
+++ b/tests/e2e/ajustements_test.ts
@@ -0,0 +1,349 @@
+// E2E tests for /ajustements endpoints — handler + real DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import {
+  makeContextWithAffiliation,
+  makeEmployeeContext,
+  makeGetRequest,
+  makeJsonRequest,
+} from "../helpers/handler.ts";
+import {
+  seedAjustements,
+  seedPromotions,
+  seedStudents,
+  seedUes,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { handler as ajustementsHandler } from "$apps/notes/api/ajustements.ts";
+import { handler as ajustementHandler } from "$apps/notes/api/ajustements/[numEtud]/[idUE].ts";
+import { ajustements as ajustementsTable } from "$root/databases/schema.ts";
+import { testDb } from "../helpers/db_integration.ts";
+
+// --- GET /ajustements ---
+
+Deno.test({
+  name: "e2e ajustements: GET /ajustements returns all",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Dupont",
+      prenom: "Jean",
+      idPromo: "P1",
+    }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedAjustements([{ numEtud: s.numEtud, idUE: ue.id, valeur: 13.0 }]);
+    const res = await ajustementsHandler.GET!(
+      makeGetRequest("/ajustements"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 1);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ajustements: GET /ajustements?numEtud filters by student",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s1] = await seedStudents([{
+      nom: "Dupont",
+      prenom: "Jean",
+      idPromo: "P1",
+    }]);
+    const [s2] = await seedStudents([{
+      nom: "Martin",
+      prenom: "Alice",
+      idPromo: "P1",
+    }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedAjustements([
+      { numEtud: s1.numEtud, idUE: ue.id, valeur: 13.0 },
+      { numEtud: s2.numEtud, idUE: ue.id, valeur: 15.0 },
+    ]);
+    const res = await ajustementsHandler.GET!(
+      makeGetRequest("/ajustements", { numEtud: String(s1.numEtud) }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 1);
+    assertEquals(body[0].numEtud, s1.numEtud);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ajustements: GET /ajustements?numEtud=NaN returns 400",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementsHandler.GET!(
+      makeGetRequest("/ajustements", { numEtud: "abc" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- POST /ajustements ---
+
+Deno.test({
+  name:
+    "e2e ajustements: POST /ajustements creates ajustement (201) as employee",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Leroy",
+      prenom: "Paul",
+      idPromo: "P1",
+    }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    const res = await ajustementsHandler.POST!(
+      makeJsonRequest("/ajustements", "POST", {
+        numEtud: s.numEtud,
+        idUE: ue.id,
+        valeur: 14.5,
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 201);
+    const body = await res.json();
+    assertExists(body.numEtud);
+    assertEquals(body.valeur, 14.5);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ajustements: POST /ajustements 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementsHandler.POST!(
+      makeJsonRequest("/ajustements", "POST", {
+        numEtud: 1,
+        idUE: 1,
+        valeur: 10.0,
+      }),
+      makeContextWithAffiliation("student"),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ajustements: POST /ajustements 400 on missing fields",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementsHandler.POST!(
+      makeJsonRequest("/ajustements", "POST", { numEtud: 12345 }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- GET /ajustements/:numEtud/:idUE ---
+
+Deno.test({
+  name:
+    "e2e ajustements: GET /ajustements/:numEtud/:idUE returns correct ajustement (employee)",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s1, s2] = await seedStudents([
+      { nom: "Bernard", prenom: "Lucie", idPromo: "P1" },
+      { nom: "Dupont", prenom: "Jean", idPromo: "P1" },
+    ]);
+    const [ue1, ue2] = await seedUes([{ nom: "UE Maths" }, { nom: "UE Info" }]);
+    // Plusieurs lignes partageant numEtud=s1 — le handler doit discriminer par idUE
+    await seedAjustements([
+      { numEtud: s1.numEtud, idUE: ue1.id, valeur: 16.0 },
+      { numEtud: s1.numEtud, idUE: ue2.id, valeur: 8.0 },
+      { numEtud: s2.numEtud, idUE: ue1.id, valeur: 12.0 },
+    ]);
+    const res = await ajustementHandler.GET!(
+      makeGetRequest(`/ajustements/${s1.numEtud}/${ue1.id}`),
+      makeEmployeeContext({
+        numEtud: String(s1.numEtud),
+        idUE: String(ue1.id),
+      }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.valeur, 16.0);
+    assertEquals(body.numEtud, s1.numEtud);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ajustements: GET /ajustements/:numEtud/:idUE 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementHandler.GET!(
+      makeGetRequest("/ajustements/1/1"),
+      makeContextWithAffiliation("student", { numEtud: "1", idUE: "1" }),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ajustements: GET /ajustements/:numEtud/:idUE 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementHandler.GET!(
+      makeGetRequest("/ajustements/99999/99"),
+      makeEmployeeContext({ numEtud: "99999", idUE: "99" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- PUT /ajustements/:numEtud/:idUE ---
+
+Deno.test({
+  name:
+    "e2e ajustements: PUT /ajustements/:numEtud/:idUE updates only targeted row (employee)",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Thomas",
+      prenom: "Eva",
+      idPromo: "P1",
+    }]);
+    const [ue1, ue2] = await seedUes([{ nom: "UE Physique" }, {
+      nom: "UE Chimie",
+    }]);
+    // Deux ajustements pour le même étudiant — seul ue1 doit être modifié
+    await seedAjustements([
+      { numEtud: s.numEtud, idUE: ue1.id, valeur: 10.0 },
+      { numEtud: s.numEtud, idUE: ue2.id, valeur: 7.0 },
+    ]);
+    const res = await ajustementHandler.PUT!(
+      makeJsonRequest(`/ajustements/${s.numEtud}/${ue1.id}`, "PUT", {
+        valeur: 19.0,
+      }),
+      makeEmployeeContext({ numEtud: String(s.numEtud), idUE: String(ue1.id) }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.valeur, 19.0);
+    // ue2 doit rester intact
+    const unchanged = await testDb.select().from(ajustementsTable);
+    const ue2Row = unchanged.find((a) => a.idUE === ue2.id);
+    assertEquals(ue2Row?.valeur, 7.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ajustements: PUT /ajustements/:numEtud/:idUE 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementHandler.PUT!(
+      makeJsonRequest("/ajustements/1/1", "PUT", { valeur: 10.0 }),
+      makeContextWithAffiliation("student", { numEtud: "1", idUE: "1" }),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ajustements: PUT /ajustements/:numEtud/:idUE 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementHandler.PUT!(
+      makeJsonRequest("/ajustements/99999/99", "PUT", { valeur: 10.0 }),
+      makeEmployeeContext({ numEtud: "99999", idUE: "99" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- DELETE /ajustements/:numEtud/:idUE ---
+
+Deno.test({
+  name:
+    "e2e ajustements: DELETE /ajustements/:numEtud/:idUE deletes only targeted row (employee)",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Petit",
+      prenom: "Hugo",
+      idPromo: "P1",
+    }]);
+    const [ue1, ue2] = await seedUes([{ nom: "UE Chimie" }, { nom: "UE Bio" }]);
+    // Deux ajustements pour le même étudiant — seul ue1 doit être supprimé
+    await seedAjustements([
+      { numEtud: s.numEtud, idUE: ue1.id, valeur: 11.0 },
+      { numEtud: s.numEtud, idUE: ue2.id, valeur: 14.0 },
+    ]);
+    const res = await ajustementHandler.DELETE!(
+      makeGetRequest(`/ajustements/${s.numEtud}/${ue1.id}`),
+      makeEmployeeContext({ numEtud: String(s.numEtud), idUE: String(ue1.id) }),
+    );
+    assertEquals(res.status, 204);
+    // ue2 doit toujours exister
+    const remaining = await testDb.select().from(ajustementsTable);
+    assertEquals(remaining.length, 1);
+    assertEquals(remaining[0].idUE, ue2.id);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e ajustements: DELETE /ajustements/:numEtud/:idUE 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementHandler.DELETE!(
+      makeGetRequest("/ajustements/1/1"),
+      makeContextWithAffiliation("student", { numEtud: "1", idUE: "1" }),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e ajustements: DELETE /ajustements/:numEtud/:idUE 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementHandler.DELETE!(
+      makeGetRequest("/ajustements/99999/99"),
+      makeEmployeeContext({ numEtud: "99999", idUE: "99" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/e2e/enseignements_test.ts b/tests/e2e/enseignements_test.ts
new file mode 100644
index 0000000..32c9326
--- /dev/null
+++ b/tests/e2e/enseignements_test.ts
@@ -0,0 +1,240 @@
+// E2E tests for /enseignements endpoints — handler + real DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import {
+  makeContextWithAffiliation,
+  makeEmployeeContext,
+  makeGetRequest,
+  makeJsonRequest,
+} from "../helpers/handler.ts";
+import {
+  seedEnseignements,
+  seedModules,
+  seedPromotions,
+  seedUsers,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { handler as enseignementsHandler } from "$apps/admin/api/enseignements.ts";
+import { handler as enseignementHandler } from "$apps/admin/api/enseignements/[idProf]/[idModule]/[idPromo].ts";
+
+// --- POST /enseignements ---
+
+Deno.test({
+  name:
+    "e2e enseignements: POST /enseignements creates enseignement (201) as employee",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "prof.dupont", nom: "Dupont", prenom: "Jean" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedPromotions([{ id: "P1" }]);
+    const res = await enseignementsHandler.POST!(
+      makeJsonRequest("/enseignements", "POST", {
+        idProf: "prof.dupont",
+        idModule: "M1",
+        idPromo: "P1",
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 201);
+    const body = await res.json();
+    assertExists(body.idProf);
+    assertEquals(body.idModule, "M1");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e enseignements: POST /enseignements 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await enseignementsHandler.POST!(
+      makeJsonRequest("/enseignements", "POST", {
+        idProf: "p",
+        idModule: "M1",
+        idPromo: "P1",
+      }),
+      makeContextWithAffiliation("student"),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e enseignements: POST /enseignements 400 on missing fields",
+  async fn() {
+    await truncateAll();
+    const res = await enseignementsHandler.POST!(
+      makeJsonRequest("/enseignements", "POST", { idProf: "prof.dupont" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e enseignements: POST /enseignements 409 on duplicate",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "prof.dupont", nom: "Dupont", prenom: "Jean" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedPromotions([{ id: "P1" }]);
+    await seedEnseignements([{
+      idProf: "prof.dupont",
+      idModule: "M1",
+      idPromo: "P1",
+    }]);
+    const res = await enseignementsHandler.POST!(
+      makeJsonRequest("/enseignements", "POST", {
+        idProf: "prof.dupont",
+        idModule: "M1",
+        idPromo: "P1",
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 409);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- GET /enseignements/:idProf/:idModule/:idPromo ---
+
+Deno.test({
+  name:
+    "e2e enseignements: GET /enseignements/:idProf/:idModule/:idPromo returns enseignement (employee)",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "prof.dupont", nom: "Dupont", prenom: "Jean" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedPromotions([{ id: "P1" }]);
+    await seedEnseignements([{
+      idProf: "prof.dupont",
+      idModule: "M1",
+      idPromo: "P1",
+    }]);
+    const res = await enseignementHandler.GET!(
+      makeGetRequest("/enseignements/prof.dupont/M1/P1"),
+      makeEmployeeContext({
+        idProf: "prof.dupont",
+        idModule: "M1",
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.idProf, "prof.dupont");
+    assertEquals(body.idModule, "M1");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e enseignements: GET /enseignements/:idProf/:idModule/:idPromo 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await enseignementHandler.GET!(
+      makeGetRequest("/enseignements/p/M1/P1"),
+      makeContextWithAffiliation("student", {
+        idProf: "p",
+        idModule: "M1",
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e enseignements: GET /enseignements/:idProf/:idModule/:idPromo 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await enseignementHandler.GET!(
+      makeGetRequest("/enseignements/ghost/GHOST/GHOST"),
+      makeEmployeeContext({
+        idProf: "ghost",
+        idModule: "GHOST",
+        idPromo: "GHOST",
+      }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- DELETE /enseignements/:idProf/:idModule/:idPromo ---
+
+Deno.test({
+  name:
+    "e2e enseignements: DELETE /enseignements/:idProf/:idModule/:idPromo returns 204 (employee)",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "prof.dupont", nom: "Dupont", prenom: "Jean" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedPromotions([{ id: "P1" }]);
+    await seedEnseignements([{
+      idProf: "prof.dupont",
+      idModule: "M1",
+      idPromo: "P1",
+    }]);
+    const res = await enseignementHandler.DELETE!(
+      makeGetRequest("/enseignements/prof.dupont/M1/P1"),
+      makeEmployeeContext({
+        idProf: "prof.dupont",
+        idModule: "M1",
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 204);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e enseignements: DELETE /enseignements/:idProf/:idModule/:idPromo 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await enseignementHandler.DELETE!(
+      makeGetRequest("/enseignements/p/M1/P1"),
+      makeContextWithAffiliation("student", {
+        idProf: "p",
+        idModule: "M1",
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e enseignements: DELETE /enseignements/:idProf/:idModule/:idPromo 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await enseignementHandler.DELETE!(
+      makeGetRequest("/enseignements/ghost/GHOST/GHOST"),
+      makeEmployeeContext({
+        idProf: "ghost",
+        idModule: "GHOST",
+        idPromo: "GHOST",
+      }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/e2e/notes_test.ts b/tests/e2e/notes_test.ts
new file mode 100644
index 0000000..ee1f491
--- /dev/null
+++ b/tests/e2e/notes_test.ts
@@ -0,0 +1,283 @@
+// E2E tests for /notes endpoints — handler + real DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import {
+  makeEmployeeContext,
+  makeGetRequest,
+  makeJsonRequest,
+} from "../helpers/handler.ts";
+import {
+  seedModules,
+  seedNotes,
+  seedPromotions,
+  seedStudents,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { handler as notesHandler } from "$apps/notes/api/notes.ts";
+import { handler as noteHandler } from "$apps/notes/api/notes/[numEtud]/[idModule].ts";
+
+// --- GET /notes ---
+
+Deno.test({
+  name: "e2e notes: GET /notes returns all notes",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Dupont",
+      prenom: "Jean",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }, { id: "M2", nom: "Mod B" }]);
+    await seedNotes([
+      { numEtud: s.numEtud, idModule: "M1", note: 15.0 },
+      { numEtud: s.numEtud, idModule: "M2", note: 12.0 },
+    ]);
+    const res = await notesHandler.GET!(
+      makeGetRequest("/notes"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 2);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e notes: GET /notes?numEtud filters by student",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s1] = await seedStudents([{
+      nom: "Dupont",
+      prenom: "Jean",
+      idPromo: "P1",
+    }]);
+    const [s2] = await seedStudents([{
+      nom: "Martin",
+      prenom: "Alice",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedNotes([
+      { numEtud: s1.numEtud, idModule: "M1", note: 15.0 },
+      { numEtud: s2.numEtud, idModule: "M1", note: 12.0 },
+    ]);
+    const res = await notesHandler.GET!(
+      makeGetRequest("/notes", { numEtud: String(s1.numEtud) }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 1);
+    assertEquals(body[0].numEtud, s1.numEtud);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e notes: GET /notes?numEtud=NaN returns 400",
+  async fn() {
+    await truncateAll();
+    const res = await notesHandler.GET!(
+      makeGetRequest("/notes", { numEtud: "abc" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e notes: GET /notes?idModule filters by module",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Dupont",
+      prenom: "Jean",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }, { id: "M2", nom: "Mod B" }]);
+    await seedNotes([
+      { numEtud: s.numEtud, idModule: "M1", note: 15.0 },
+      { numEtud: s.numEtud, idModule: "M2", note: 10.0 },
+    ]);
+    const res = await notesHandler.GET!(
+      makeGetRequest("/notes", { idModule: "M1" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 1);
+    assertEquals(body[0].idModule, "M1");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- POST /notes ---
+
+Deno.test({
+  name: "e2e notes: POST /notes creates note (201)",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Leroy",
+      prenom: "Paul",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    const res = await notesHandler.POST!(
+      makeJsonRequest("/notes", "POST", {
+        numEtud: s.numEtud,
+        idModule: "M1",
+        note: 14.0,
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 201);
+    const body = await res.json();
+    assertExists(body.numEtud);
+    assertEquals(body.note, 14.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e notes: POST /notes 400 on missing fields",
+  async fn() {
+    await truncateAll();
+    const res = await notesHandler.POST!(
+      makeJsonRequest("/notes", "POST", { numEtud: 12345 }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- GET /notes/:numEtud/:idModule ---
+
+Deno.test({
+  name: "e2e notes: GET /notes/:numEtud/:idModule returns note",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Bernard",
+      prenom: "Lucie",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedNotes([{ numEtud: s.numEtud, idModule: "M1", note: 18.0 }]);
+    const res = await noteHandler.GET!(
+      makeGetRequest(`/notes/${s.numEtud}/M1`),
+      makeEmployeeContext({ numEtud: String(s.numEtud), idModule: "M1" }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.note, 18.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e notes: GET /notes/:numEtud/:idModule 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await noteHandler.GET!(
+      makeGetRequest("/notes/99999/GHOST"),
+      makeEmployeeContext({ numEtud: "99999", idModule: "GHOST" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- PUT /notes/:numEtud/:idModule ---
+
+Deno.test({
+  name: "e2e notes: PUT /notes/:numEtud/:idModule updates note",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Thomas",
+      prenom: "Eva",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedNotes([{ numEtud: s.numEtud, idModule: "M1", note: 10.0 }]);
+    const res = await noteHandler.PUT!(
+      makeJsonRequest(`/notes/${s.numEtud}/M1`, "PUT", { note: 16.0 }),
+      makeEmployeeContext({ numEtud: String(s.numEtud), idModule: "M1" }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.note, 16.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e notes: PUT /notes/:numEtud/:idModule 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await noteHandler.PUT!(
+      makeJsonRequest("/notes/99999/GHOST", "PUT", { note: 10.0 }),
+      makeEmployeeContext({ numEtud: "99999", idModule: "GHOST" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- DELETE /notes/:numEtud/:idModule ---
+
+Deno.test({
+  name: "e2e notes: DELETE /notes/:numEtud/:idModule returns 204",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Petit",
+      prenom: "Hugo",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedNotes([{ numEtud: s.numEtud, idModule: "M1", note: 9.0 }]);
+    const res = await noteHandler.DELETE!(
+      makeGetRequest(`/notes/${s.numEtud}/M1`),
+      makeEmployeeContext({ numEtud: String(s.numEtud), idModule: "M1" }),
+    );
+    assertEquals(res.status, 204);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e notes: DELETE /notes/:numEtud/:idModule 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await noteHandler.DELETE!(
+      makeGetRequest("/notes/99999/GHOST"),
+      makeEmployeeContext({ numEtud: "99999", idModule: "GHOST" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/e2e/robustness_test.ts b/tests/e2e/robustness_test.ts
new file mode 100644
index 0000000..fb5552b
--- /dev/null
+++ b/tests/e2e/robustness_test.ts
@@ -0,0 +1,592 @@
+// Robustness tests — input validation & side-effect isolation
+//
+// Chaque test documente le comportement réel du handler face à des entrées invalides.
+// Les tests marqués [BUG] représentent le comportement ATTENDU — ils échouent
+// intentionnellement pour exposer un bug dans le handler ciblé.
+
+import { assertEquals } from "@std/assert";
+import {
+  makeContextWithAffiliation,
+  makeEmployeeContext,
+  makeGetRequest,
+  makeJsonRequest,
+} from "../helpers/handler.ts";
+import {
+  seedModules,
+  seedPromotions,
+  seedStudents,
+  seedUes,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { handler as modulesHandler } from "$apps/admin/api/modules.ts";
+import { handler as moduleHandler } from "$apps/admin/api/modules/[idModule].ts";
+import { handler as notesHandler } from "$apps/notes/api/notes.ts";
+import { handler as uesHandler } from "$apps/notes/api/ues.ts";
+import { handler as ueModulesHandler } from "$apps/notes/api/ue-modules.ts";
+import { handler as ajustementsHandler } from "$apps/notes/api/ajustements.ts";
+import { handler as enseignementsHandler } from "$apps/admin/api/enseignements.ts";
+import { handler as usersHandler } from "$apps/admin/api/users.ts";
+
+// Helper : request POST avec un body JSON invalide
+function makeMalformedRequest(path: string): Request {
+  return new Request(`http://localhost${path}`, {
+    method: "POST",
+    headers: { "content-type": "application/json" },
+    body: "{ ceci n'est pas du json }",
+  });
+}
+
+// Helper : request POST sans body du tout
+function makeEmptyBodyRequest(path: string, method = "POST"): Request {
+  return new Request(`http://localhost${path}`, { method });
+}
+
+// =============================================================================
+// JSON MALFORMÉ
+// =============================================================================
+// Handlers AVEC try/catch → retournent 500
+// Handlers SANS try/catch → throwent (assertRejects)
+
+Deno.test({
+  name: "robustness: POST /notes malformed JSON → 500 (try/catch présent)",
+  async fn() {
+    await truncateAll();
+    const res = await notesHandler.POST!(
+      makeMalformedRequest("/notes"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 500);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /ues malformed JSON → 500 (try/catch présent)",
+  async fn() {
+    await truncateAll();
+    const res = await uesHandler.POST!(
+      makeMalformedRequest("/ues"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 500);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /ue-modules malformed JSON → 500 (try/catch présent)",
+  async fn() {
+    await truncateAll();
+    const res = await ueModulesHandler.POST!(
+      makeMalformedRequest("/ue-modules"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 500);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "robustness: POST /ajustements malformed JSON → 500 (try/catch présent)",
+  async fn() {
+    await truncateAll();
+    const res = await ajustementsHandler.POST!(
+      makeMalformedRequest("/ajustements"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 500);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /modules malformed JSON → 500",
+  async fn() {
+    await truncateAll();
+    const res = await modulesHandler.POST!(
+      makeMalformedRequest("/modules"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 500);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /enseignements malformed JSON → 500",
+  async fn() {
+    await truncateAll();
+    const res = await enseignementsHandler.POST!(
+      makeMalformedRequest("/enseignements"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 500);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /users malformed JSON → 500",
+  async fn() {
+    await truncateAll();
+    const res = await usersHandler.POST!(
+      makeMalformedRequest("/users"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 500);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// BODY ABSENT
+// =============================================================================
+
+Deno.test({
+  name: "robustness: POST /notes sans body → 500",
+  async fn() {
+    await truncateAll();
+    const res = await notesHandler.POST!(
+      makeEmptyBodyRequest("/notes"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 500);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /modules sans body → 500",
+  async fn() {
+    await truncateAll();
+    const res = await modulesHandler.POST!(
+      makeEmptyBodyRequest("/modules"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 500);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// CHAÎNES VIDES — comportement correct ✓
+// =============================================================================
+
+Deno.test({
+  name: "robustness: POST /modules id vide → 400",
+  async fn() {
+    await truncateAll();
+    const res = await modulesHandler.POST!(
+      makeJsonRequest("/modules", "POST", { id: "", nom: "Test" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /modules nom vide → 400",
+  async fn() {
+    await truncateAll();
+    const res = await modulesHandler.POST!(
+      makeJsonRequest("/modules", "POST", { id: "M1", nom: "" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /ues nom vide → 400",
+  async fn() {
+    await truncateAll();
+    const res = await uesHandler.POST!(
+      makeJsonRequest("/ues", "POST", { nom: "" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// CHAÎNES AVEC ESPACES SEULS — [BUG] passent !field et s'insèrent en DB
+// =============================================================================
+
+Deno.test({
+  name: "robustness: POST /modules id=espaces → 400",
+  async fn() {
+    await truncateAll();
+    const res = await modulesHandler.POST!(
+      makeJsonRequest("/modules", "POST", { id: "   ", nom: "Test" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /ues nom=espaces → 400",
+  async fn() {
+    await truncateAll();
+    const res = await uesHandler.POST!(
+      makeJsonRequest("/ues", "POST", { nom: "   " }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /users id=espaces → 400",
+  async fn() {
+    await truncateAll();
+    const res = await usersHandler.POST!(
+      makeJsonRequest("/users", "POST", { id: "   ", nom: "X", prenom: "Y" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// MAUVAIS TYPES
+// =============================================================================
+
+Deno.test({
+  name: "robustness: POST /notes note=string → 400",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Test",
+      prenom: "User",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod" }]);
+    const res = await notesHandler.POST!(
+      makeJsonRequest("/notes", "POST", {
+        note: "pas-un-nombre",
+        numEtud: s.numEtud,
+        idModule: "M1",
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: PUT /modules/:id nom=number → 400",
+  async fn() {
+    await truncateAll();
+    await seedModules([{ id: "M1", nom: "Mod" }]);
+    const res = await moduleHandler.PUT!(
+      makeJsonRequest("/modules/M1", "PUT", { nom: 42 }),
+      makeEmployeeContext({ idModule: "M1" }),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// VALEUR ZÉRO — falsy bug sur numEtud/idUE
+// =============================================================================
+
+Deno.test({
+  name:
+    "robustness [BUG]: POST /ajustements numEtud=0 → 400 pour mauvaise raison",
+  async fn() {
+    await truncateAll();
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    const res = await ajustementsHandler.POST!(
+      makeJsonRequest("/ajustements", "POST", {
+        numEtud: 0,
+        idUE: ue.id,
+        valeur: 10.0,
+      }),
+      makeEmployeeContext(),
+    );
+    // !0 === true → retourne 400 à cause du falsy check, pas d'une vraie validation
+    // Comportement attendu : 422 ou message d'erreur explicite sur numEtud invalide
+    // Comportement réel    : 400 générique "champs requis"
+    assertEquals(res.status, 400); // passe, mais pour la mauvaise raison — le message est trompeur
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness [BUG]: POST /ajustements idUE=0 → 400 pour mauvaise raison",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Test",
+      prenom: "User",
+      idPromo: "P1",
+    }]);
+    const res = await ajustementsHandler.POST!(
+      makeJsonRequest("/ajustements", "POST", {
+        numEtud: s.numEtud,
+        idUE: 0,
+        valeur: 10.0,
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400); // !0 → 400, message trompeur
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// VALEUR ZÉRO CORRECTEMENT GÉRÉE — coeff=0 est valide
+// =============================================================================
+
+Deno.test({
+  name:
+    "robustness: POST /ue-modules coeff=0 → 201 (zéro est une valeur valide)",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    await seedModules([{ id: "M1", nom: "Mod" }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    const res = await ueModulesHandler.POST!(
+      makeJsonRequest("/ue-modules", "POST", {
+        idModule: "M1",
+        idUE: ue.id,
+        idPromo: "P1",
+        coeff: 0,
+      }),
+      makeEmployeeContext(),
+    );
+    // coeff === undefined → false pour 0 → passe ✓
+    assertEquals(res.status, 201);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// INJECTION SQL DANS LES PARAMÈTRES D'URL
+// Drizzle utilise des requêtes paramétrées → les injections sont neutralisées
+// =============================================================================
+
+Deno.test({
+  name:
+    "robustness: GET /modules avec SQL injection dans id → 404 (Drizzle paramètre)",
+  async fn() {
+    await truncateAll();
+    const injectionId = "'; DROP TABLE modules; --";
+    const res = await moduleHandler.GET!(
+      makeGetRequest(`/modules/${encodeURIComponent(injectionId)}`),
+      makeEmployeeContext({ idModule: injectionId }),
+    );
+    // Drizzle génère WHERE id = $1 avec $1 = "'; DROP TABLE modules; --"
+    // Aucune injection possible → module non trouvé → 404
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "robustness: POST /modules avec SQL injection dans id → s'insère littéralement (safe)",
+  async fn() {
+    await truncateAll();
+    const injectionId = "'; DROP TABLE modules; --";
+    const res = await modulesHandler.POST!(
+      makeJsonRequest("/modules", "POST", { id: injectionId, nom: "Test" }),
+      makeEmployeeContext(),
+    );
+    // Drizzle paramètre la valeur → s'insère comme une chaîne ordinaire → 201
+    assertEquals(res.status, 201);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// ABSENCE DE VALIDATION MÉTIER — valeurs hors limites acceptées
+// =============================================================================
+
+Deno.test({
+  name: "robustness: POST /notes note > 20 → 400",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Test",
+      prenom: "User",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod" }]);
+    const res = await notesHandler.POST!(
+      makeJsonRequest("/notes", "POST", {
+        note: 999,
+        numEtud: s.numEtud,
+        idModule: "M1",
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /notes note < 0 → 400",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Test",
+      prenom: "User",
+      idPromo: "P1",
+    }]);
+    await seedModules([{ id: "M1", nom: "Mod" }]);
+    const res = await notesHandler.POST!(
+      makeJsonRequest("/notes", "POST", {
+        note: -5,
+        numEtud: s.numEtud,
+        idModule: "M1",
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "robustness: POST /ue-modules coeff négatif → 400",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    await seedModules([{ id: "M1", nom: "Mod" }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    const res = await ueModulesHandler.POST!(
+      makeJsonRequest("/ue-modules", "POST", {
+        idModule: "M1",
+        idUE: ue.id,
+        idPromo: "P1",
+        coeff: -3,
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// ISOLATION DES EFFETS DE BORD
+// Vérification que truncateAll() isole correctement chaque test
+// =============================================================================
+
+Deno.test({
+  name: "robustness: isolation — données du test précédent non visibles",
+  async fn() {
+    // Ce test crée un module
+    await truncateAll();
+    await modulesHandler.POST!(
+      makeJsonRequest("/modules", "POST", {
+        id: "ISOLATION-TEST",
+        nom: "Test",
+      }),
+      makeEmployeeContext(),
+    );
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "robustness: isolation — truncateAll efface bien les données du test précédent",
+  async fn() {
+    await truncateAll();
+    // Le module créé dans le test précédent ne doit plus exister
+    const res = await moduleHandler.GET!(
+      makeGetRequest("/modules/ISOLATION-TEST"),
+      makeEmployeeContext({ idModule: "ISOLATION-TEST" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// CHAMPS SUPPLÉMENTAIRES INCONNUS — doivent être ignorés silencieusement
+// =============================================================================
+
+Deno.test({
+  name: "robustness: POST /modules avec champs inconnus → 201 (champs ignorés)",
+  async fn() {
+    await truncateAll();
+    const res = await modulesHandler.POST!(
+      makeJsonRequest("/modules", "POST", {
+        id: "M-EXTRA",
+        nom: "Test",
+        champInconnu: "valeur",
+        _admin: true,
+        __proto__: { polluted: true },
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 201);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// =============================================================================
+// ACCÈS NON AUTHENTIFIÉ — vérification que l'état auth est bien contrôlé
+// =============================================================================
+
+Deno.test({
+  name: "robustness: POST /modules sans affiliation employee → 403",
+  async fn() {
+    await truncateAll();
+    for (const role of ["student", "alumni", "", "EMPLOYEE", "admin"]) {
+      const res = await modulesHandler.POST!(
+        makeJsonRequest("/modules", "POST", { id: `M-${role}`, nom: "Test" }),
+        makeContextWithAffiliation(role),
+      );
+      assertEquals(res.status, 403, `role "${role}" devrait être 403`);
+    }
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/e2e/ue_modules_test.ts b/tests/e2e/ue_modules_test.ts
new file mode 100644
index 0000000..3a921f8
--- /dev/null
+++ b/tests/e2e/ue_modules_test.ts
@@ -0,0 +1,312 @@
+// E2E tests for /ue-modules endpoints — handler + real DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import {
+  makeContextWithAffiliation,
+  makeEmployeeContext,
+  makeGetRequest,
+  makeJsonRequest,
+} from "../helpers/handler.ts";
+import {
+  seedModules,
+  seedPromotions,
+  seedUeModules,
+  seedUes,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { handler as ueModulesHandler } from "$apps/notes/api/ue-modules.ts";
+import { handler as ueModuleHandler } from "$apps/notes/api/ue-modules/[idModule]/[idUE]/[idPromo].ts";
+import { ueModules as ueModulesTable } from "$root/databases/schema.ts";
+import { testDb } from "../helpers/db_integration.ts";
+
+// --- GET /ue-modules ---
+
+Deno.test({
+  name: "e2e ue_modules: GET /ue-modules returns all associations",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }, { id: "M2", nom: "Mod B" }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedUeModules([
+      { idModule: "M1", idUE: ue.id, idPromo: "P1", coeff: 2.0 },
+      { idModule: "M2", idUE: ue.id, idPromo: "P1", coeff: 3.0 },
+    ]);
+    const res = await ueModulesHandler.GET!(
+      makeGetRequest("/ue-modules"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 2);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ue_modules: GET /ue-modules?idPromo filters by promo",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }, { id: "P2" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedUeModules([
+      { idModule: "M1", idUE: ue.id, idPromo: "P1", coeff: 2.0 },
+      { idModule: "M1", idUE: ue.id, idPromo: "P2", coeff: 3.0 },
+    ]);
+    const res = await ueModulesHandler.GET!(
+      makeGetRequest("/ue-modules", { idPromo: "P1" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 1);
+    assertEquals(body[0].idPromo, "P1");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- POST /ue-modules ---
+
+Deno.test({
+  name: "e2e ue_modules: POST /ue-modules creates association (201)",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    const res = await ueModulesHandler.POST!(
+      makeJsonRequest("/ue-modules", "POST", {
+        idModule: "M1",
+        idUE: ue.id,
+        idPromo: "P1",
+        coeff: 4.0,
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 201);
+    const body = await res.json();
+    assertExists(body.idModule);
+    assertEquals(body.coeff, 4.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ue_modules: POST /ue-modules 400 on missing fields",
+  async fn() {
+    await truncateAll();
+    const res = await ueModulesHandler.POST!(
+      makeJsonRequest("/ue-modules", "POST", { idModule: "M1" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- GET /ue-modules/:idModule/:idUE/:idPromo ---
+
+Deno.test({
+  name:
+    "e2e ue_modules: GET /ue-modules/:idModule/:idUE/:idPromo returns correct association (employee)",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }, { id: "P2" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }, { id: "M2", nom: "Mod B" }]);
+    const [ue1, ue2] = await seedUes([{ nom: "UE Info" }, { nom: "UE Maths" }]);
+    // Plusieurs lignes qui partagent idModule="M1" — le handler doit discriminer par idUE ET idPromo
+    await seedUeModules([
+      { idModule: "M1", idUE: ue1.id, idPromo: "P1", coeff: 3.5 },
+      { idModule: "M1", idUE: ue2.id, idPromo: "P1", coeff: 1.0 },
+      { idModule: "M1", idUE: ue1.id, idPromo: "P2", coeff: 2.0 },
+      { idModule: "M2", idUE: ue1.id, idPromo: "P1", coeff: 4.0 },
+    ]);
+    const res = await ueModuleHandler.GET!(
+      makeGetRequest(`/ue-modules/M1/${ue1.id}/P1`),
+      makeEmployeeContext({
+        idModule: "M1",
+        idUE: String(ue1.id),
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    // Doit retourner exactement M1/ue1/P1 avec coeff 3.5, pas une autre ligne
+    assertEquals(body.coeff, 3.5);
+    assertEquals(body.idPromo, "P1");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e ue_modules: GET /ue-modules/:idModule/:idUE/:idPromo 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await ueModuleHandler.GET!(
+      makeGetRequest("/ue-modules/M1/1/P1"),
+      makeContextWithAffiliation("student", {
+        idModule: "M1",
+        idUE: "1",
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e ue_modules: GET /ue-modules/:idModule/:idUE/:idPromo 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await ueModuleHandler.GET!(
+      makeGetRequest("/ue-modules/GHOST/1/GHOST"),
+      makeEmployeeContext({ idModule: "GHOST", idUE: "1", idPromo: "GHOST" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- PUT /ue-modules/:idModule/:idUE/:idPromo ---
+
+Deno.test({
+  name:
+    "e2e ue_modules: PUT /ue-modules/:idModule/:idUE/:idPromo updates only the targeted row (employee)",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }, { id: "P2" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    const [ue1, ue2] = await seedUes([{ nom: "UE Info" }, { nom: "UE Maths" }]);
+    // Deux lignes avec même idModule — le PUT ne doit modifier que celle ciblée
+    await seedUeModules([
+      { idModule: "M1", idUE: ue1.id, idPromo: "P1", coeff: 2.0 },
+      { idModule: "M1", idUE: ue2.id, idPromo: "P2", coeff: 9.0 },
+    ]);
+    const res = await ueModuleHandler.PUT!(
+      makeJsonRequest(`/ue-modules/M1/${ue1.id}/P1`, "PUT", { coeff: 5.0 }),
+      makeEmployeeContext({
+        idModule: "M1",
+        idUE: String(ue1.id),
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.coeff, 5.0);
+    assertEquals(body.idPromo, "P1");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e ue_modules: PUT /ue-modules/:idModule/:idUE/:idPromo 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await ueModuleHandler.PUT!(
+      makeJsonRequest("/ue-modules/M1/1/P1", "PUT", { coeff: 5.0 }),
+      makeContextWithAffiliation("student", {
+        idModule: "M1",
+        idUE: "1",
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e ue_modules: PUT /ue-modules/:idModule/:idUE/:idPromo 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await ueModuleHandler.PUT!(
+      makeJsonRequest("/ue-modules/GHOST/1/GHOST", "PUT", { coeff: 5.0 }),
+      makeEmployeeContext({ idModule: "GHOST", idUE: "1", idPromo: "GHOST" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- DELETE /ue-modules/:idModule/:idUE/:idPromo ---
+
+Deno.test({
+  name:
+    "e2e ue_modules: DELETE /ue-modules/:idModule/:idUE/:idPromo deletes only targeted row (employee)",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }, { id: "P2" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    const [ue1, ue2] = await seedUes([{ nom: "UE Info" }, { nom: "UE Maths" }]);
+    // Deux lignes avec même idModule — seule celle ciblée doit être supprimée
+    await seedUeModules([
+      { idModule: "M1", idUE: ue1.id, idPromo: "P1", coeff: 2.0 },
+      { idModule: "M1", idUE: ue2.id, idPromo: "P2", coeff: 4.0 },
+    ]);
+    const res = await ueModuleHandler.DELETE!(
+      makeGetRequest(`/ue-modules/M1/${ue1.id}/P1`),
+      makeEmployeeContext({
+        idModule: "M1",
+        idUE: String(ue1.id),
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 204);
+    // L'autre ligne doit toujours exister
+    const remaining = await testDb.select().from(ueModulesTable);
+    assertEquals(remaining.length, 1);
+    assertEquals(remaining[0].idUE, ue2.id);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e ue_modules: DELETE /ue-modules/:idModule/:idUE/:idPromo 403 for non-employee",
+  async fn() {
+    await truncateAll();
+    const res = await ueModuleHandler.DELETE!(
+      makeGetRequest("/ue-modules/M1/1/P1"),
+      makeContextWithAffiliation("student", {
+        idModule: "M1",
+        idUE: "1",
+        idPromo: "P1",
+      }),
+    );
+    assertEquals(res.status, 403);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "e2e ue_modules: DELETE /ue-modules/:idModule/:idUE/:idPromo 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await ueModuleHandler.DELETE!(
+      makeGetRequest("/ue-modules/GHOST/1/GHOST"),
+      makeEmployeeContext({ idModule: "GHOST", idUE: "1", idPromo: "GHOST" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/e2e/ues_test.ts b/tests/e2e/ues_test.ts
new file mode 100644
index 0000000..1797f8d
--- /dev/null
+++ b/tests/e2e/ues_test.ts
@@ -0,0 +1,178 @@
+// E2E tests for /ues endpoints — handler + real DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import {
+  makeEmployeeContext,
+  makeGetRequest,
+  makeJsonRequest,
+} from "../helpers/handler.ts";
+import { seedUes, truncateAll } from "../helpers/db_integration.ts";
+import { handler as uesHandler } from "$apps/notes/api/ues.ts";
+import { handler as ueHandler } from "$apps/notes/api/ues/[idUE].ts";
+
+// --- GET /ues ---
+
+Deno.test({
+  name: "e2e ues: GET /ues returns all UEs",
+  async fn() {
+    await truncateAll();
+    await seedUes([{ nom: "UE Informatique" }, { nom: "UE Mathématiques" }]);
+    const res = await uesHandler.GET!(
+      makeGetRequest("/ues"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 2);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ues: GET /ues returns empty when no UEs",
+  async fn() {
+    await truncateAll();
+    const res = await uesHandler.GET!(
+      makeGetRequest("/ues"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- POST /ues ---
+
+Deno.test({
+  name: "e2e ues: POST /ues creates UE (201)",
+  async fn() {
+    await truncateAll();
+    const res = await uesHandler.POST!(
+      makeJsonRequest("/ues", "POST", { nom: "UE Physique" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 201);
+    const body = await res.json();
+    assertExists(body.id);
+    assertEquals(body.nom, "UE Physique");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ues: POST /ues 400 on missing nom",
+  async fn() {
+    await truncateAll();
+    const res = await uesHandler.POST!(
+      makeJsonRequest("/ues", "POST", {}),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- GET /ues/:id ---
+
+Deno.test({
+  name: "e2e ues: GET /ues/:id returns UE",
+  async fn() {
+    await truncateAll();
+    const [ue] = await seedUes([{ nom: "UE Chimie" }]);
+    const res = await ueHandler.GET!(
+      makeGetRequest(`/ues/${ue.id}`),
+      makeEmployeeContext({ idUE: String(ue.id) }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.nom, "UE Chimie");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ues: GET /ues/:id 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await ueHandler.GET!(
+      makeGetRequest("/ues/99999"),
+      makeEmployeeContext({ idUE: "99999" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- PUT /ues/:id ---
+
+Deno.test({
+  name: "e2e ues: PUT /ues/:id updates nom",
+  async fn() {
+    await truncateAll();
+    const [ue] = await seedUes([{ nom: "UE Biologie" }]);
+    const res = await ueHandler.PUT!(
+      makeJsonRequest(`/ues/${ue.id}`, "PUT", {
+        nom: "UE Biologie moléculaire",
+      }),
+      makeEmployeeContext({ idUE: String(ue.id) }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.nom, "UE Biologie moléculaire");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ues: PUT /ues/:id 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await ueHandler.PUT!(
+      makeJsonRequest("/ues/99999", "PUT", { nom: "X" }),
+      makeEmployeeContext({ idUE: "99999" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- DELETE /ues/:id ---
+
+Deno.test({
+  name: "e2e ues: DELETE /ues/:id returns 204",
+  async fn() {
+    await truncateAll();
+    const [ue] = await seedUes([{ nom: "UE à supprimer" }]);
+    const res = await ueHandler.DELETE!(
+      makeGetRequest(`/ues/${ue.id}`),
+      makeEmployeeContext({ idUE: String(ue.id) }),
+    );
+    assertEquals(res.status, 204);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e ues: DELETE /ues/:id 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await ueHandler.DELETE!(
+      makeGetRequest("/ues/99999"),
+      makeEmployeeContext({ idUE: "99999" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/e2e/users_test.ts b/tests/e2e/users_test.ts
new file mode 100644
index 0000000..830aefa
--- /dev/null
+++ b/tests/e2e/users_test.ts
@@ -0,0 +1,239 @@
+// E2E tests for /users endpoints — handler + real DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import {
+  makeEmployeeContext,
+  makeGetRequest,
+  makeJsonRequest,
+} from "../helpers/handler.ts";
+import {
+  seedRoles,
+  seedUsers,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { handler as usersHandler } from "$apps/admin/api/users.ts";
+import { handler as userHandler } from "$apps/admin/api/users/[id].ts";
+
+// --- GET /users ---
+
+Deno.test({
+  name: "e2e users: GET /users returns all users",
+  async fn() {
+    await truncateAll();
+    await seedUsers([
+      { id: "dupont.jean", nom: "Dupont", prenom: "Jean" },
+      { id: "martin.alice", nom: "Martin", prenom: "Alice" },
+    ]);
+    const res = await usersHandler.GET!(
+      makeGetRequest("/users"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 2);
+    assertExists(body.find((u: { id: string }) => u.id === "dupont.jean"));
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e users: GET /users returns empty when no users",
+  async fn() {
+    await truncateAll();
+    const res = await usersHandler.GET!(
+      makeGetRequest("/users"),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e users: GET /users?idRole filters by role",
+  async fn() {
+    await truncateAll();
+    const [role1] = await seedRoles([{ nom: "admin" }]);
+    const [role2] = await seedRoles([{ nom: "employee" }]);
+    await seedUsers([
+      { id: "admin.user", nom: "Admin", prenom: "User", idRole: role1.id },
+      { id: "emp.user", nom: "Emp", prenom: "User", idRole: role2.id },
+    ]);
+    const res = await usersHandler.GET!(
+      makeGetRequest("/users", { idRole: String(role1.id) }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.length, 1);
+    assertEquals(body[0].id, "admin.user");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- POST /users ---
+
+Deno.test({
+  name: "e2e users: POST /users creates user (201)",
+  async fn() {
+    await truncateAll();
+    const res = await usersHandler.POST!(
+      makeJsonRequest("/users", "POST", {
+        id: "new.user",
+        nom: "New",
+        prenom: "User",
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 201);
+    const body = await res.json();
+    assertEquals(body.id, "new.user");
+    assertEquals(body.nom, "New");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e users: POST /users 400 on missing fields",
+  async fn() {
+    await truncateAll();
+    const res = await usersHandler.POST!(
+      makeJsonRequest("/users", "POST", { id: "x" }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 400);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e users: POST /users 409 on duplicate id",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "dupont.jean", nom: "Dupont", prenom: "Jean" }]);
+    const res = await usersHandler.POST!(
+      makeJsonRequest("/users", "POST", {
+        id: "dupont.jean",
+        nom: "Doublon",
+        prenom: "X",
+      }),
+      makeEmployeeContext(),
+    );
+    assertEquals(res.status, 409);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- GET /users/:id ---
+
+Deno.test({
+  name: "e2e users: GET /users/:id returns user",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "bernard.lucie", nom: "Bernard", prenom: "Lucie" }]);
+    const res = await userHandler.GET!(
+      makeGetRequest("/users/bernard.lucie"),
+      makeEmployeeContext({ id: "bernard.lucie" }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.id, "bernard.lucie");
+    assertEquals(body.nom, "Bernard");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e users: GET /users/:id 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await userHandler.GET!(
+      makeGetRequest("/users/ghost.user"),
+      makeEmployeeContext({ id: "ghost.user" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- PUT /users/:id ---
+
+Deno.test({
+  name: "e2e users: PUT /users/:id updates user",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "thomas.eva", nom: "Thomas", prenom: "Eva" }]);
+    const res = await userHandler.PUT!(
+      makeJsonRequest("/users/thomas.eva", "PUT", {
+        nom: "Thomas-Modifié",
+        prenom: "Eva",
+        idRole: null,
+      }),
+      makeEmployeeContext({ id: "thomas.eva" }),
+    );
+    assertEquals(res.status, 200);
+    const body = await res.json();
+    assertEquals(body.nom, "Thomas-Modifié");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e users: PUT /users/:id 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await userHandler.PUT!(
+      makeJsonRequest("/users/ghost.user", "PUT", {
+        nom: "X",
+        prenom: "Y",
+        idRole: null,
+      }),
+      makeEmployeeContext({ id: "ghost.user" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+// --- DELETE /users/:id ---
+
+Deno.test({
+  name: "e2e users: DELETE /users/:id returns 204",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "petit.hugo", nom: "Petit", prenom: "Hugo" }]);
+    const res = await userHandler.DELETE!(
+      makeGetRequest("/users/petit.hugo"),
+      makeEmployeeContext({ id: "petit.hugo" }),
+    );
+    assertEquals(res.status, 204);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "e2e users: DELETE /users/:id 404 when not found",
+  async fn() {
+    await truncateAll();
+    const res = await userHandler.DELETE!(
+      makeGetRequest("/users/ghost.user"),
+      makeEmployeeContext({ id: "ghost.user" }),
+    );
+    assertEquals(res.status, 404);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/helpers/db_integration.ts b/tests/helpers/db_integration.ts
index ee7fe04..4b91b25 100644
--- a/tests/helpers/db_integration.ts
+++ b/tests/helpers/db_integration.ts
@@ -87,3 +87,27 @@ export async function seedUsers(
 ): Promise<typeof schema.users.$inferSelect[]> {
   return await testDb.insert(schema.users).values(rows).returning();
 }
+
+export async function seedNotes(
+  rows: { numEtud: number; idModule: string; note: number }[],
+): Promise<typeof schema.notes.$inferSelect[]> {
+  return await testDb.insert(schema.notes).values(rows).returning();
+}
+
+export async function seedUeModules(
+  rows: { idModule: string; idUE: number; idPromo: string; coeff: number }[],
+): Promise<typeof schema.ueModules.$inferSelect[]> {
+  return await testDb.insert(schema.ueModules).values(rows).returning();
+}
+
+export async function seedEnseignements(
+  rows: { idProf: string; idModule: string; idPromo: string }[],
+): Promise<typeof schema.enseignements.$inferSelect[]> {
+  return await testDb.insert(schema.enseignements).values(rows).returning();
+}
+
+export async function seedAjustements(
+  rows: { numEtud: number; idUE: number; valeur: number }[],
+): Promise<typeof schema.ajustements.$inferSelect[]> {
+  return await testDb.insert(schema.ajustements).values(rows).returning();
+}
diff --git a/tests/integration/ajustements_test.ts b/tests/integration/ajustements_test.ts
new file mode 100644
index 0000000..49e6fcd
--- /dev/null
+++ b/tests/integration/ajustements_test.ts
@@ -0,0 +1,160 @@
+// Integration tests for /ajustements — Drizzle ORM direct on real DB
+
+import { assertEquals, assertExists, assertRejects } from "@std/assert";
+import {
+  seedAjustements,
+  seedPromotions,
+  seedStudents,
+  seedUes,
+  testDb,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { ajustements } from "$root/databases/schema.ts";
+import { and, eq } from "npm:drizzle-orm@0.45.2";
+
+Deno.test({
+  name: "integration ajustements: list all ajustements",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Dupont",
+      prenom: "Jean",
+      idPromo: "P1",
+    }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedAjustements([{ numEtud: s.numEtud, idUE: ue.id, valeur: 13.0 }]);
+    const rows = await testDb.select().from(ajustements);
+    assertEquals(rows.length, 1);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ajustements: create and retrieve by composite key",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Martin",
+      prenom: "Alice",
+      idPromo: "P1",
+    }]);
+    const [ue] = await seedUes([{ nom: "UE Maths" }]);
+
+    const [created] = await testDb
+      .insert(ajustements)
+      .values({ numEtud: s.numEtud, idUE: ue.id, valeur: 15.5 })
+      .returning();
+    assertExists(created);
+    assertEquals(created.valeur, 15.5);
+
+    const row = await testDb
+      .select()
+      .from(ajustements)
+      .where(
+        and(eq(ajustements.numEtud, s.numEtud), eq(ajustements.idUE, ue.id)),
+      )
+      .then((r) => r[0] ?? null);
+    assertExists(row);
+    assertEquals(row.valeur, 15.5);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "integration ajustements: get by composite key returns null when not found",
+  async fn() {
+    await truncateAll();
+    const row = await testDb
+      .select()
+      .from(ajustements)
+      .where(and(eq(ajustements.numEtud, 99999), eq(ajustements.idUE, 99)))
+      .then((r) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ajustements: duplicate composite key insert fails",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Durand",
+      prenom: "Claire",
+      idPromo: "P1",
+    }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedAjustements([{ numEtud: s.numEtud, idUE: ue.id, valeur: 12.0 }]);
+    await assertRejects(() =>
+      testDb.insert(ajustements).values({
+        numEtud: s.numEtud,
+        idUE: ue.id,
+        valeur: 13.0,
+      })
+    );
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ajustements: update valeur",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Bernard",
+      prenom: "Lucie",
+      idPromo: "P1",
+    }]);
+    const [ue] = await seedUes([{ nom: "UE Physique" }]);
+    await seedAjustements([{ numEtud: s.numEtud, idUE: ue.id, valeur: 10.0 }]);
+
+    const [updated] = await testDb
+      .update(ajustements)
+      .set({ valeur: 18.0 })
+      .where(
+        and(eq(ajustements.numEtud, s.numEtud), eq(ajustements.idUE, ue.id)),
+      )
+      .returning();
+    assertEquals(updated.valeur, 18.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ajustements: delete removes the ajustement",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    const [s] = await seedStudents([{
+      nom: "Thomas",
+      prenom: "Eva",
+      idPromo: "P1",
+    }]);
+    const [ue] = await seedUes([{ nom: "UE Chimie" }]);
+    await seedAjustements([{ numEtud: s.numEtud, idUE: ue.id, valeur: 11.0 }]);
+
+    await testDb.delete(ajustements).where(
+      and(eq(ajustements.numEtud, s.numEtud), eq(ajustements.idUE, ue.id)),
+    );
+    const row = await testDb
+      .select()
+      .from(ajustements)
+      .where(
+        and(eq(ajustements.numEtud, s.numEtud), eq(ajustements.idUE, ue.id)),
+      )
+      .then((r) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/integration/enseignements_test.ts b/tests/integration/enseignements_test.ts
new file mode 100644
index 0000000..40086a9
--- /dev/null
+++ b/tests/integration/enseignements_test.ts
@@ -0,0 +1,148 @@
+// Integration tests for /enseignements — Drizzle ORM direct on real DB
+
+import { assertEquals, assertExists, assertRejects } from "@std/assert";
+import {
+  seedEnseignements,
+  seedModules,
+  seedPromotions,
+  seedUsers,
+  testDb,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { enseignements } from "$root/databases/schema.ts";
+import { and, eq } from "npm:drizzle-orm@0.45.2";
+
+Deno.test({
+  name: "integration enseignements: list all enseignements",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "prof.dupont", nom: "Dupont", prenom: "Jean" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }, { id: "M2", nom: "Mod B" }]);
+    await seedPromotions([{ id: "P1" }]);
+    await seedEnseignements([
+      { idProf: "prof.dupont", idModule: "M1", idPromo: "P1" },
+      { idProf: "prof.dupont", idModule: "M2", idPromo: "P1" },
+    ]);
+    const rows = await testDb.select().from(enseignements);
+    assertEquals(rows.length, 2);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration enseignements: create and retrieve by composite key",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "prof.moreau", nom: "Moreau", prenom: "Sophie" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedPromotions([{ id: "P1" }]);
+
+    const [created] = await testDb
+      .insert(enseignements)
+      .values({ idProf: "prof.moreau", idModule: "M1", idPromo: "P1" })
+      .returning();
+    assertExists(created);
+    assertEquals(created.idProf, "prof.moreau");
+
+    const row = await testDb
+      .select()
+      .from(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, "prof.moreau"),
+          eq(enseignements.idModule, "M1"),
+          eq(enseignements.idPromo, "P1"),
+        ),
+      )
+      .then((r) => r[0] ?? null);
+    assertExists(row);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "integration enseignements: get by composite key returns null when not found",
+  async fn() {
+    await truncateAll();
+    const row = await testDb
+      .select()
+      .from(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, "ghost"),
+          eq(enseignements.idModule, "GHOST"),
+          eq(enseignements.idPromo, "GHOST"),
+        ),
+      )
+      .then((r) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration enseignements: duplicate composite key insert fails",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "prof.dupont", nom: "Dupont", prenom: "Jean" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedPromotions([{ id: "P1" }]);
+    await seedEnseignements([{
+      idProf: "prof.dupont",
+      idModule: "M1",
+      idPromo: "P1",
+    }]);
+    await assertRejects(() =>
+      testDb.insert(enseignements).values({
+        idProf: "prof.dupont",
+        idModule: "M1",
+        idPromo: "P1",
+      })
+    );
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration enseignements: delete removes the enseignement",
+  async fn() {
+    await truncateAll();
+    await seedUsers([{ id: "prof.dupont", nom: "Dupont", prenom: "Jean" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    await seedPromotions([{ id: "P1" }]);
+    await seedEnseignements([{
+      idProf: "prof.dupont",
+      idModule: "M1",
+      idPromo: "P1",
+    }]);
+
+    await testDb
+      .delete(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, "prof.dupont"),
+          eq(enseignements.idModule, "M1"),
+          eq(enseignements.idPromo, "P1"),
+        ),
+      );
+    const row = await testDb
+      .select()
+      .from(enseignements)
+      .where(
+        and(
+          eq(enseignements.idProf, "prof.dupont"),
+          eq(enseignements.idModule, "M1"),
+          eq(enseignements.idPromo, "P1"),
+        ),
+      )
+      .then((r) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/integration/notes_test.ts b/tests/integration/notes_test.ts
new file mode 100644
index 0000000..b9018b9
--- /dev/null
+++ b/tests/integration/notes_test.ts
@@ -0,0 +1,154 @@
+// Integration tests for /notes — Drizzle ORM direct on real DB
+
+import { assertEquals, assertExists, assertRejects } from "@std/assert";
+import {
+  seedModules,
+  seedNotes,
+  seedPromotions,
+  seedStudents,
+  testDb,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { notes } from "$root/databases/schema.ts";
+import { and, eq } from "npm:drizzle-orm@0.45.2";
+
+Deno.test({
+  name: "integration notes: list all notes",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "PROMO-2024" }]);
+    const [s] = await seedStudents([{
+      nom: "Dupont",
+      prenom: "Jean",
+      idPromo: "PROMO-2024",
+    }]);
+    await seedModules([{ id: "MOD101", nom: "Module A" }]);
+    await seedNotes([{ numEtud: s.numEtud, idModule: "MOD101", note: 15.5 }]);
+    const rows = await testDb.select().from(notes);
+    assertEquals(rows.length, 1);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration notes: create and retrieve by composite key",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "PROMO-2024" }]);
+    const [s] = await seedStudents([{
+      nom: "Martin",
+      prenom: "Alice",
+      idPromo: "PROMO-2024",
+    }]);
+    await seedModules([{ id: "MOD102", nom: "Module B" }]);
+
+    const [created] = await testDb.insert(notes).values({
+      numEtud: s.numEtud,
+      idModule: "MOD102",
+      note: 12.0,
+    }).returning();
+    assertExists(created);
+    assertEquals(created.note, 12.0);
+
+    const row = await testDb
+      .select()
+      .from(notes)
+      .where(and(eq(notes.numEtud, s.numEtud), eq(notes.idModule, "MOD102")))
+      .then((r) => r[0] ?? null);
+    assertExists(row);
+    assertEquals(row.note, 12.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration notes: get by composite key returns null when not found",
+  async fn() {
+    await truncateAll();
+    const row = await testDb
+      .select()
+      .from(notes)
+      .where(and(eq(notes.numEtud, 99999), eq(notes.idModule, "GHOST")))
+      .then((r) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration notes: duplicate composite key insert fails",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "PROMO-2024" }]);
+    const [s] = await seedStudents([{
+      nom: "Durand",
+      prenom: "Claire",
+      idPromo: "PROMO-2024",
+    }]);
+    await seedModules([{ id: "MOD103", nom: "Module C" }]);
+    await seedNotes([{ numEtud: s.numEtud, idModule: "MOD103", note: 10.0 }]);
+    await assertRejects(() =>
+      testDb.insert(notes).values({
+        numEtud: s.numEtud,
+        idModule: "MOD103",
+        note: 11.0,
+      })
+    );
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration notes: update note value",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "PROMO-2024" }]);
+    const [s] = await seedStudents([{
+      nom: "Bernard",
+      prenom: "Lucie",
+      idPromo: "PROMO-2024",
+    }]);
+    await seedModules([{ id: "MOD104", nom: "Module D" }]);
+    await seedNotes([{ numEtud: s.numEtud, idModule: "MOD104", note: 8.0 }]);
+
+    const [updated] = await testDb
+      .update(notes)
+      .set({ note: 16.0 })
+      .where(and(eq(notes.numEtud, s.numEtud), eq(notes.idModule, "MOD104")))
+      .returning();
+    assertEquals(updated.note, 16.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration notes: delete removes the note",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "PROMO-2024" }]);
+    const [s] = await seedStudents([{
+      nom: "Thomas",
+      prenom: "Eva",
+      idPromo: "PROMO-2024",
+    }]);
+    await seedModules([{ id: "MOD105", nom: "Module E" }]);
+    await seedNotes([{ numEtud: s.numEtud, idModule: "MOD105", note: 14.0 }]);
+
+    await testDb.delete(notes).where(
+      and(eq(notes.numEtud, s.numEtud), eq(notes.idModule, "MOD105")),
+    );
+    const row = await testDb
+      .select()
+      .from(notes)
+      .where(and(eq(notes.numEtud, s.numEtud), eq(notes.idModule, "MOD105")))
+      .then((r) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/integration/ue_modules_test.ts b/tests/integration/ue_modules_test.ts
new file mode 100644
index 0000000..9aaab2a
--- /dev/null
+++ b/tests/integration/ue_modules_test.ts
@@ -0,0 +1,183 @@
+// Integration tests for /ue-modules — Drizzle ORM direct on real DB
+
+import { assertEquals, assertExists, assertRejects } from "@std/assert";
+import {
+  seedModules,
+  seedPromotions,
+  seedUeModules,
+  seedUes,
+  testDb,
+  truncateAll,
+} from "../helpers/db_integration.ts";
+import { ueModules } from "$root/databases/schema.ts";
+import { and, eq } from "npm:drizzle-orm@0.45.2";
+
+Deno.test({
+  name: "integration ue_modules: list all associations",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }, { id: "M2", nom: "Mod B" }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedUeModules([
+      { idModule: "M1", idUE: ue.id, idPromo: "P1", coeff: 2.0 },
+      { idModule: "M2", idUE: ue.id, idPromo: "P1", coeff: 3.0 },
+    ]);
+    const rows = await testDb.select().from(ueModules);
+    assertEquals(rows.length, 2);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ue_modules: create and retrieve by composite key",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    const [ue] = await seedUes([{ nom: "UE Maths" }]);
+
+    const [created] = await testDb
+      .insert(ueModules)
+      .values({ idModule: "M1", idUE: ue.id, idPromo: "P1", coeff: 4.0 })
+      .returning();
+    assertExists(created);
+    assertEquals(created.coeff, 4.0);
+
+    const row = await testDb
+      .select()
+      .from(ueModules)
+      .where(
+        and(
+          eq(ueModules.idModule, "M1"),
+          eq(ueModules.idUE, ue.id),
+          eq(ueModules.idPromo, "P1"),
+        ),
+      )
+      .then((r) => r[0] ?? null);
+    assertExists(row);
+    assertEquals(row.coeff, 4.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name:
+    "integration ue_modules: get by composite key returns null when not found",
+  async fn() {
+    await truncateAll();
+    const row = await testDb
+      .select()
+      .from(ueModules)
+      .where(
+        and(
+          eq(ueModules.idModule, "GHOST"),
+          eq(ueModules.idUE, 99),
+          eq(ueModules.idPromo, "GHOST"),
+        ),
+      )
+      .then((r) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ue_modules: duplicate composite key insert fails",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedUeModules([{
+      idModule: "M1",
+      idUE: ue.id,
+      idPromo: "P1",
+      coeff: 2.0,
+    }]);
+    await assertRejects(() =>
+      testDb.insert(ueModules).values({
+        idModule: "M1",
+        idUE: ue.id,
+        idPromo: "P1",
+        coeff: 5.0,
+      })
+    );
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ue_modules: update coeff",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedUeModules([{
+      idModule: "M1",
+      idUE: ue.id,
+      idPromo: "P1",
+      coeff: 2.0,
+    }]);
+
+    const [updated] = await testDb
+      .update(ueModules)
+      .set({ coeff: 6.0 })
+      .where(
+        and(
+          eq(ueModules.idModule, "M1"),
+          eq(ueModules.idUE, ue.id),
+          eq(ueModules.idPromo, "P1"),
+        ),
+      )
+      .returning();
+    assertEquals(updated.coeff, 6.0);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ue_modules: delete removes the association",
+  async fn() {
+    await truncateAll();
+    await seedPromotions([{ id: "P1" }]);
+    await seedModules([{ id: "M1", nom: "Mod A" }]);
+    const [ue] = await seedUes([{ nom: "UE Info" }]);
+    await seedUeModules([{
+      idModule: "M1",
+      idUE: ue.id,
+      idPromo: "P1",
+      coeff: 2.0,
+    }]);
+
+    await testDb
+      .delete(ueModules)
+      .where(
+        and(
+          eq(ueModules.idModule, "M1"),
+          eq(ueModules.idUE, ue.id),
+          eq(ueModules.idPromo, "P1"),
+        ),
+      );
+    const row = await testDb
+      .select()
+      .from(ueModules)
+      .where(
+        and(
+          eq(ueModules.idModule, "M1"),
+          eq(ueModules.idUE, ue.id),
+          eq(ueModules.idPromo, "P1"),
+        ),
+      )
+      .then((r) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/integration/ues_test.ts b/tests/integration/ues_test.ts
new file mode 100644
index 0000000..790330a
--- /dev/null
+++ b/tests/integration/ues_test.ts
@@ -0,0 +1,90 @@
+// Integration tests for /ues — Drizzle ORM direct on real DB
+
+import { assertEquals, assertExists, assertRejects } from "@std/assert";
+import { seedUes, testDb, truncateAll } from "../helpers/db_integration.ts";
+import { ues } from "$root/databases/schema.ts";
+import { eq } from "npm:drizzle-orm@0.45.2";
+
+Deno.test({
+  name: "integration ues: list all UEs",
+  async fn() {
+    await truncateAll();
+    await seedUes([{ nom: "UE Informatique" }, { nom: "UE Mathématiques" }]);
+    const rows = await testDb.select().from(ues);
+    assertEquals(rows.length, 2);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ues: create and retrieve by id",
+  async fn() {
+    await truncateAll();
+    const [created] = await testDb.insert(ues).values({ nom: "UE Physique" })
+      .returning();
+    assertExists(created);
+    assertExists(created.id);
+    assertEquals(created.nom, "UE Physique");
+
+    const row = await testDb.select().from(ues).where(eq(ues.id, created.id))
+      .then((r) => r[0] ?? null);
+    assertExists(row);
+    assertEquals(row.nom, "UE Physique");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ues: get by id returns null when not found",
+  async fn() {
+    await truncateAll();
+    const row = await testDb.select().from(ues).where(eq(ues.id, 99999)).then((
+      r,
+    ) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ues: update nom",
+  async fn() {
+    await truncateAll();
+    const [ue] = await seedUes([{ nom: "UE Chimie" }]);
+    const [updated] = await testDb.update(ues).set({
+      nom: "UE Chimie organique",
+    }).where(eq(ues.id, ue.id)).returning();
+    assertEquals(updated.nom, "UE Chimie organique");
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ues: delete removes the UE",
+  async fn() {
+    await truncateAll();
+    const [ue] = await seedUes([{ nom: "UE à supprimer" }]);
+    await testDb.delete(ues).where(eq(ues.id, ue.id));
+    const row = await testDb.select().from(ues).where(eq(ues.id, ue.id)).then((
+      r,
+    ) => r[0] ?? null);
+    assertEquals(row, null);
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
+
+Deno.test({
+  name: "integration ues: nom is required (not null)",
+  async fn() {
+    await truncateAll();
+    // deno-lint-ignore no-explicit-any
+    await assertRejects(() => testDb.insert(ues).values({ nom: null as any }));
+  },
+  sanitizeResources: false,
+  sanitizeOps: false,
+});
diff --git a/tests/unit/ajustements_test.ts b/tests/unit/ajustements_test.ts
new file mode 100644
index 0000000..8820c23
--- /dev/null
+++ b/tests/unit/ajustements_test.ts
@@ -0,0 +1,224 @@
+// Unit tests for /ajustements endpoints — fixtures, mock API, mock DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import { mockFetch, restoreFetch } from "../helpers/api_mock.ts";
+import { createMockDb } from "../helpers/db_mock.ts";
+import { type Ajustement, ajustements } from "../helpers/fixtures.ts";
+
+// --- Fixtures ---
+
+Deno.test("ajustements: fixtures have correct shape", () => {
+  assertEquals(ajustements.length, 2);
+  assertEquals(typeof ajustements[0].numEtud, "number");
+  assertEquals(typeof ajustements[0].idUE, "number");
+  assertEquals(typeof ajustements[0].valeur, "number");
+});
+
+// --- Mock API ---
+
+Deno.test("mock API: GET /ajustements returns list", async () => {
+  mockFetch({ "/ajustements": ajustements });
+  try {
+    const res = await fetch("http://localhost/api/ajustements");
+    assertEquals(res.status, 200);
+    const data: Ajustement[] = await res.json();
+    assertEquals(data.length, 2);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ajustements?numEtud filters by student", async () => {
+  const filtered = ajustements.filter((a) => a.numEtud === 21212006);
+  mockFetch({ "/ajustements": filtered });
+  try {
+    const res = await fetch(
+      "http://localhost/api/ajustements?numEtud=21212006",
+    );
+    const data: Ajustement[] = await res.json();
+    assertEquals(data.length, 1);
+    assertEquals(data[0].numEtud, 21212006);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ajustements?numEtud=NaN returns 400", async () => {
+  mockFetch({ "/ajustements": { status: 400 } });
+  try {
+    const res = await fetch("http://localhost/api/ajustements?numEtud=abc");
+    assertEquals(res.status, 400);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /ajustements creates ajustement (201) as employee", async () => {
+  const newAjust: Ajustement = { numEtud: 21212007, idUE: 2, valeur: 14.0 };
+  mockFetch({
+    "/ajustements": { method: "POST", status: 201, body: newAjust },
+  });
+  try {
+    const res = await fetch("http://localhost/api/ajustements", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify(newAjust),
+    });
+    assertEquals(res.status, 201);
+    const data: Ajustement = await res.json();
+    assertEquals(data.numEtud, 21212007);
+    assertEquals(data.valeur, 14.0);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /ajustements 403 for non-employee", async () => {
+  mockFetch({ "/ajustements": { method: "POST", status: 403 } });
+  try {
+    const res = await fetch("http://localhost/api/ajustements", {
+      method: "POST",
+    });
+    assertEquals(res.status, 403);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /ajustements 400 on missing fields", async () => {
+  mockFetch({ "/ajustements": { method: "POST", status: 400 } });
+  try {
+    const res = await fetch("http://localhost/api/ajustements", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({ numEtud: 21212006 }),
+    });
+    assertEquals(res.status, 400);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ajustements/:numEtud/:idUE returns ajustement (employee)", async () => {
+  mockFetch({ "/ajustements/21212006/1": ajustements[0] });
+  try {
+    const res = await fetch("http://localhost/api/ajustements/21212006/1");
+    assertEquals(res.status, 200);
+    const data: Ajustement = await res.json();
+    assertEquals(data.valeur, 13.25);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ajustements/:numEtud/:idUE 403 for non-employee", async () => {
+  mockFetch({ "/ajustements/21212006/1": { status: 403 } });
+  try {
+    const res = await fetch("http://localhost/api/ajustements/21212006/1");
+    assertEquals(res.status, 403);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ajustements/:numEtud/:idUE 404 when not found", async () => {
+  mockFetch({
+    "/ajustements/99999/9": {
+      status: 404,
+      body: { error: "Ajustement introuvable" },
+    },
+  });
+  try {
+    const res = await fetch("http://localhost/api/ajustements/99999/9");
+    assertEquals(res.status, 404);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: PUT /ajustements/:numEtud/:idUE updates valeur", async () => {
+  const updated: Ajustement = { ...ajustements[0], valeur: 18.0 };
+  mockFetch({
+    "/ajustements/21212006/1": { method: "PUT", status: 200, body: updated },
+  });
+  try {
+    const res = await fetch("http://localhost/api/ajustements/21212006/1", {
+      method: "PUT",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({ valeur: 18.0 }),
+    });
+    assertEquals(res.status, 200);
+    const data: Ajustement = await res.json();
+    assertEquals(data.valeur, 18.0);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: DELETE /ajustements/:numEtud/:idUE returns 204", async () => {
+  mockFetch({ "/ajustements/21212006/1": { method: "DELETE", status: 204 } });
+  try {
+    const res = await fetch("http://localhost/api/ajustements/21212006/1", {
+      method: "DELETE",
+    });
+    assertEquals(res.status, 204);
+  } finally {
+    restoreFetch();
+  }
+});
+
+// --- Mock DB ---
+
+Deno.test("mock DB: find ajustement by composite key", () => {
+  const db = createMockDb({ tables: { ajustements: [...ajustements] } });
+  const a = db.findOne<Ajustement>(
+    "ajustements",
+    (a) => a.numEtud === 21212006 && a.idUE === 1,
+  );
+  assertExists(a);
+  assertEquals(a.valeur, 13.25);
+});
+
+Deno.test("mock DB: filter ajustements by numEtud", () => {
+  const db = createMockDb({ tables: { ajustements: [...ajustements] } });
+  const rows = db.findMany<Ajustement>(
+    "ajustements",
+    (a) => a.numEtud === 21212006,
+  );
+  assertEquals(rows.length, 1);
+});
+
+Deno.test("mock DB: insert ajustement", () => {
+  const db = createMockDb({ tables: { ajustements: [...ajustements] } });
+  db.insert<Ajustement>("ajustements", {
+    numEtud: 21212007,
+    idUE: 2,
+    valeur: 14.0,
+  });
+  assertEquals(db.getTable("ajustements").length, 3);
+});
+
+Deno.test("mock DB: update ajustement valeur", () => {
+  const db = createMockDb({ tables: { ajustements: [...ajustements] } });
+  db.updateWhere<Ajustement>(
+    "ajustements",
+    (a) => a.numEtud === 21212006 && a.idUE === 1,
+    { valeur: 20.0 },
+  );
+  assertEquals(
+    db.findOne<Ajustement>(
+      "ajustements",
+      (a) => a.numEtud === 21212006 && a.idUE === 1,
+    )?.valeur,
+    20.0,
+  );
+});
+
+Deno.test("mock DB: delete ajustement", () => {
+  const db = createMockDb({ tables: { ajustements: [...ajustements] } });
+  db.deleteWhere<Ajustement>(
+    "ajustements",
+    (a) => a.numEtud === 21212006 && a.idUE === 1,
+  );
+  assertEquals(db.getTable("ajustements").length, 1);
+});
diff --git a/tests/unit/enseignements_test.ts b/tests/unit/enseignements_test.ts
new file mode 100644
index 0000000..d1e3b04
--- /dev/null
+++ b/tests/unit/enseignements_test.ts
@@ -0,0 +1,239 @@
+// Unit tests for /enseignements endpoints — fixtures, mock API, mock DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import { mockFetch, restoreFetch } from "../helpers/api_mock.ts";
+import { createMockDb } from "../helpers/db_mock.ts";
+import { enseignements } from "../helpers/fixtures.ts";
+
+interface Enseignement {
+  idProf: string;
+  idModule: string;
+  idPromo: string;
+}
+
+// --- Fixtures ---
+
+Deno.test("enseignements: fixtures have correct shape", () => {
+  assertEquals(enseignements.length, 3);
+  assertEquals(typeof enseignements[0].idModule, "string");
+  assertEquals(typeof enseignements[0].idPromo, "string");
+});
+
+// --- Mock API ---
+
+Deno.test("mock API: POST /enseignements creates enseignement (201) as employee", async () => {
+  const newEns: Enseignement = {
+    idProf: "prof.dupont",
+    idModule: "JIN702C",
+    idPromo: "4AFISE25/26",
+  };
+  mockFetch({
+    "/enseignements": { method: "POST", status: 201, body: newEns },
+  });
+  try {
+    const res = await fetch("http://localhost/api/enseignements", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify(newEns),
+    });
+    assertEquals(res.status, 201);
+    const data: Enseignement = await res.json();
+    assertEquals(data.idModule, "JIN702C");
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /enseignements 403 for non-employee", async () => {
+  mockFetch({ "/enseignements": { method: "POST", status: 403 } });
+  try {
+    const res = await fetch("http://localhost/api/enseignements", {
+      method: "POST",
+    });
+    assertEquals(res.status, 403);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /enseignements 400 on missing fields", async () => {
+  mockFetch({ "/enseignements": { method: "POST", status: 400 } });
+  try {
+    const res = await fetch("http://localhost/api/enseignements", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({ idProf: "prof.dupont" }),
+    });
+    assertEquals(res.status, 400);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /enseignements 409 on duplicate", async () => {
+  mockFetch({
+    "/enseignements": {
+      method: "POST",
+      status: 409,
+      body: { error: "Cet enseignement existe déjà." },
+    },
+  });
+  try {
+    const res = await fetch("http://localhost/api/enseignements", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({
+        idProf: "prof.dupont",
+        idModule: "JIN702C",
+        idPromo: "4AFISE25/26",
+      }),
+    });
+    assertEquals(res.status, 409);
+    const data = await res.json();
+    assertExists(data.error);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /enseignements/:idProf/:idModule/:idPromo returns enseignement (employee)", async () => {
+  const ens: Enseignement = {
+    idProf: "prof.dupont",
+    idModule: "JIN702C",
+    idPromo: "4AFISE25/26",
+  };
+  mockFetch({ "/enseignements/prof.dupont/JIN702C/4AFISE25": ens });
+  try {
+    const res = await fetch(
+      "http://localhost/api/enseignements/prof.dupont/JIN702C/4AFISE25%2F26",
+    );
+    assertEquals(res.status, 200);
+    const data: Enseignement = await res.json();
+    assertEquals(data.idProf, "prof.dupont");
+    assertEquals(data.idModule, "JIN702C");
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /enseignements/:idProf/:idModule/:idPromo 403 for non-employee", async () => {
+  mockFetch({ "/enseignements/prof.dupont/JIN702C/4AFISE25": { status: 403 } });
+  try {
+    const res = await fetch(
+      "http://localhost/api/enseignements/prof.dupont/JIN702C/4AFISE25%2F26",
+    );
+    assertEquals(res.status, 403);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /enseignements/:idProf/:idModule/:idPromo 404 when not found", async () => {
+  mockFetch({
+    "/enseignements/ghost/GHOST/GHOST": {
+      status: 404,
+      body: { error: "Ressource introuvable" },
+    },
+  });
+  try {
+    const res = await fetch(
+      "http://localhost/api/enseignements/ghost/GHOST/GHOST",
+    );
+    assertEquals(res.status, 404);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: DELETE /enseignements/:idProf/:idModule/:idPromo returns 204 (employee)", async () => {
+  mockFetch({
+    "/enseignements/prof.dupont/JIN702C/4AFISE25": {
+      method: "DELETE",
+      status: 204,
+    },
+  });
+  try {
+    const res = await fetch(
+      "http://localhost/api/enseignements/prof.dupont/JIN702C/4AFISE25%2F26",
+      {
+        method: "DELETE",
+      },
+    );
+    assertEquals(res.status, 204);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: DELETE /enseignements/:idProf/:idModule/:idPromo 403 for non-employee", async () => {
+  mockFetch({
+    "/enseignements/prof.dupont/JIN702C/4AFISE25": {
+      method: "DELETE",
+      status: 403,
+    },
+  });
+  try {
+    const res = await fetch(
+      "http://localhost/api/enseignements/prof.dupont/JIN702C/4AFISE25%2F26",
+      {
+        method: "DELETE",
+      },
+    );
+    assertEquals(res.status, 403);
+  } finally {
+    restoreFetch();
+  }
+});
+
+// --- Mock DB ---
+
+Deno.test("mock DB: find enseignement by composite key", () => {
+  const data = [
+    { idProf: "prof.dupont", idModule: "JIN702C", idPromo: "4AFISE25/26" },
+    { idProf: "prof.moreau", idModule: "JIN703C", idPromo: "4AFISE25/26" },
+  ];
+  const db = createMockDb({ tables: { enseignements: data } });
+  const e = db.findOne<Enseignement>(
+    "enseignements",
+    (e) => e.idProf === "prof.dupont" && e.idModule === "JIN702C",
+  );
+  assertExists(e);
+  assertEquals(e.idPromo, "4AFISE25/26");
+});
+
+Deno.test("mock DB: insert enseignement", () => {
+  const db = createMockDb({ tables: { enseignements: [] } });
+  db.insert<Enseignement>("enseignements", {
+    idProf: "prof.dupont",
+    idModule: "JIN702C",
+    idPromo: "4AFISE25/26",
+  });
+  assertEquals(db.getTable("enseignements").length, 1);
+});
+
+Deno.test("mock DB: delete enseignement", () => {
+  const data = [
+    { idProf: "prof.dupont", idModule: "JIN702C", idPromo: "4AFISE25/26" },
+    { idProf: "prof.moreau", idModule: "JIN703C", idPromo: "4AFISE25/26" },
+  ];
+  const db = createMockDb({ tables: { enseignements: data } });
+  db.deleteWhere<Enseignement>(
+    "enseignements",
+    (e) => e.idProf === "prof.dupont",
+  );
+  assertEquals(db.getTable("enseignements").length, 1);
+});
+
+Deno.test("mock DB: filter enseignements by idModule", () => {
+  const data = [
+    { idProf: "prof.dupont", idModule: "JIN702C", idPromo: "4AFISE25/26" },
+    { idProf: "prof.dupont", idModule: "JIN702C", idPromo: "3AFISE25/26" },
+    { idProf: "prof.moreau", idModule: "JIN703C", idPromo: "4AFISE25/26" },
+  ];
+  const db = createMockDb({ tables: { enseignements: data } });
+  const rows = db.findMany<Enseignement>(
+    "enseignements",
+    (e) => e.idModule === "JIN702C",
+  );
+  assertEquals(rows.length, 2);
+});
diff --git a/tests/unit/notes_test.ts b/tests/unit/notes_test.ts
new file mode 100644
index 0000000..9e13794
--- /dev/null
+++ b/tests/unit/notes_test.ts
@@ -0,0 +1,224 @@
+// Unit tests for /notes endpoints — fixtures, mock API, mock DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import { mockFetch, restoreFetch } from "../helpers/api_mock.ts";
+import { createMockDb } from "../helpers/db_mock.ts";
+import { type Note, notes } from "../helpers/fixtures.ts";
+
+// --- Fixtures ---
+
+Deno.test("notes: fixtures have correct shape", () => {
+  assertEquals(notes.length, 4);
+  assertEquals(typeof notes[0].note, "number");
+  assertEquals(typeof notes[0].numEtud, "number");
+  assertEquals(typeof notes[0].idModule, "string");
+});
+
+Deno.test("notes: fixtures use decimal values", () => {
+  assertEquals(notes[0].note, 15.5);
+});
+
+// --- Mock API ---
+
+Deno.test("mock API: GET /notes returns list", async () => {
+  mockFetch({ "/notes": notes });
+  try {
+    const res = await fetch("http://localhost/api/notes");
+    assertEquals(res.status, 200);
+    const data: Note[] = await res.json();
+    assertEquals(data.length, 4);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /notes?numEtud filters by student", async () => {
+  const filtered = notes.filter((n) => n.numEtud === 21212006);
+  mockFetch({ "/notes": filtered });
+  try {
+    const res = await fetch("http://localhost/api/notes?numEtud=21212006");
+    const data: Note[] = await res.json();
+    assertEquals(data.length, 2);
+    assertEquals(data.every((n) => n.numEtud === 21212006), true);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /notes?idModule filters by module", async () => {
+  const filtered = notes.filter((n) => n.idModule === "JIN702C");
+  mockFetch({ "/notes": filtered });
+  try {
+    const res = await fetch("http://localhost/api/notes?idModule=JIN702C");
+    const data: Note[] = await res.json();
+    assertEquals(data.length, 2);
+    assertEquals(data.every((n) => n.idModule === "JIN702C"), true);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /notes?numEtud=NaN returns 400", async () => {
+  mockFetch({ "/notes": { status: 400 } });
+  try {
+    const res = await fetch("http://localhost/api/notes?numEtud=abc");
+    assertEquals(res.status, 400);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /notes creates note (201)", async () => {
+  const newNote: Note = { note: 14.0, numEtud: 21212006, idModule: "JIN704C" };
+  mockFetch({ "/notes": { method: "POST", status: 201, body: newNote } });
+  try {
+    const res = await fetch("http://localhost/api/notes", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify(newNote),
+    });
+    assertEquals(res.status, 201);
+    const data: Note = await res.json();
+    assertEquals(data.note, 14.0);
+    assertEquals(data.numEtud, 21212006);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /notes 400 on missing fields", async () => {
+  mockFetch({ "/notes": { method: "POST", status: 400 } });
+  try {
+    const res = await fetch("http://localhost/api/notes", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({ numEtud: 21212006 }),
+    });
+    assertEquals(res.status, 400);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /notes/:numEtud/:idModule returns note", async () => {
+  mockFetch({ "/notes/21212006/JIN702C": notes[0] });
+  try {
+    const res = await fetch("http://localhost/api/notes/21212006/JIN702C");
+    assertEquals(res.status, 200);
+    const data: Note = await res.json();
+    assertEquals(data.note, 15.5);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /notes/:numEtud/:idModule 404 when not found", async () => {
+  mockFetch({
+    "/notes/99999/GHOST": {
+      status: 404,
+      body: { error: "Ressource introuvable" },
+    },
+  });
+  try {
+    const res = await fetch("http://localhost/api/notes/99999/GHOST");
+    assertEquals(res.status, 404);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: PUT /notes/:numEtud/:idModule updates note", async () => {
+  const updated: Note = { ...notes[0], note: 17.0 };
+  mockFetch({
+    "/notes/21212006/JIN702C": { method: "PUT", status: 200, body: updated },
+  });
+  try {
+    const res = await fetch("http://localhost/api/notes/21212006/JIN702C", {
+      method: "PUT",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({ note: 17.0 }),
+    });
+    assertEquals(res.status, 200);
+    const data: Note = await res.json();
+    assertEquals(data.note, 17.0);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: DELETE /notes/:numEtud/:idModule returns 204", async () => {
+  mockFetch({ "/notes/21212006/JIN702C": { method: "DELETE", status: 204 } });
+  try {
+    const res = await fetch("http://localhost/api/notes/21212006/JIN702C", {
+      method: "DELETE",
+    });
+    assertEquals(res.status, 204);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: DELETE /notes/:numEtud/:idModule 404 when not found", async () => {
+  mockFetch({ "/notes/99999/GHOST": { method: "DELETE", status: 404 } });
+  try {
+    const res = await fetch("http://localhost/api/notes/99999/GHOST", {
+      method: "DELETE",
+    });
+    assertEquals(res.status, 404);
+  } finally {
+    restoreFetch();
+  }
+});
+
+// --- Mock DB ---
+
+Deno.test("mock DB: find note by composite key", () => {
+  const db = createMockDb({ tables: { notes: [...notes] } });
+  const n = db.findOne<Note>(
+    "notes",
+    (n) => n.numEtud === 21212006 && n.idModule === "JIN702C",
+  );
+  assertExists(n);
+  assertEquals(n.note, 15.5);
+});
+
+Deno.test("mock DB: filter notes by numEtud", () => {
+  const db = createMockDb({ tables: { notes: [...notes] } });
+  const rows = db.findMany<Note>("notes", (n) => n.numEtud === 21212006);
+  assertEquals(rows.length, 2);
+});
+
+Deno.test("mock DB: insert note", () => {
+  const db = createMockDb({ tables: { notes: [...notes] } });
+  db.insert<Note>("notes", {
+    note: 10.0,
+    numEtud: 21212006,
+    idModule: "JIN704C",
+  });
+  assertEquals(db.getTable("notes").length, 5);
+});
+
+Deno.test("mock DB: update note value", () => {
+  const db = createMockDb({ tables: { notes: [...notes] } });
+  db.updateWhere<Note>(
+    "notes",
+    (n) => n.numEtud === 21212006 && n.idModule === "JIN702C",
+    { note: 20.0 },
+  );
+  assertEquals(
+    db.findOne<Note>(
+      "notes",
+      (n) => n.numEtud === 21212006 && n.idModule === "JIN702C",
+    )?.note,
+    20.0,
+  );
+});
+
+Deno.test("mock DB: delete note", () => {
+  const db = createMockDb({ tables: { notes: [...notes] } });
+  db.deleteWhere<Note>(
+    "notes",
+    (n) => n.numEtud === 21212006 && n.idModule === "JIN702C",
+  );
+  assertEquals(db.getTable("notes").length, 3);
+});
diff --git a/tests/unit/ue_modules_test.ts b/tests/unit/ue_modules_test.ts
new file mode 100644
index 0000000..7b2761d
--- /dev/null
+++ b/tests/unit/ue_modules_test.ts
@@ -0,0 +1,222 @@
+// Unit tests for /ue-modules endpoints — fixtures, mock API, mock DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import { mockFetch, restoreFetch } from "../helpers/api_mock.ts";
+import { createMockDb } from "../helpers/db_mock.ts";
+import { type UeModule, ueModules } from "../helpers/fixtures.ts";
+
+// --- Fixtures ---
+
+Deno.test("ue_modules: fixtures have correct shape", () => {
+  assertEquals(ueModules.length, 3);
+  assertEquals(typeof ueModules[0].idModule, "string");
+  assertEquals(typeof ueModules[0].idUE, "number");
+  assertEquals(typeof ueModules[0].idPromo, "string");
+  assertEquals(typeof ueModules[0].coeff, "number");
+});
+
+// --- Mock API ---
+
+Deno.test("mock API: GET /ue-modules returns list", async () => {
+  mockFetch({ "/ue-modules": ueModules });
+  try {
+    const res = await fetch("http://localhost/api/ue-modules");
+    assertEquals(res.status, 200);
+    const data: UeModule[] = await res.json();
+    assertEquals(data.length, 3);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ue-modules?idPromo filters by promo", async () => {
+  const filtered = ueModules.filter((u) => u.idPromo === "4AFISE25/26");
+  mockFetch({ "/ue-modules": filtered });
+  try {
+    const res = await fetch(
+      "http://localhost/api/ue-modules?idPromo=4AFISE25%2F26",
+    );
+    const data: UeModule[] = await res.json();
+    assertEquals(data.length, 2);
+    assertEquals(data.every((u) => u.idPromo === "4AFISE25/26"), true);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ue-modules?idUE filters by UE", async () => {
+  const filtered = ueModules.filter((u) => u.idUE === 1);
+  mockFetch({ "/ue-modules": filtered });
+  try {
+    const res = await fetch("http://localhost/api/ue-modules?idUE=1");
+    const data: UeModule[] = await res.json();
+    assertEquals(data.length, 2);
+    assertEquals(data.every((u) => u.idUE === 1), true);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /ue-modules creates association (201)", async () => {
+  const newUeModule: UeModule = {
+    idModule: "JIN705C",
+    idUE: 2,
+    idPromo: "3AFISE25/26",
+    coeff: 3.0,
+  };
+  mockFetch({
+    "/ue-modules": { method: "POST", status: 201, body: newUeModule },
+  });
+  try {
+    const res = await fetch("http://localhost/api/ue-modules", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify(newUeModule),
+    });
+    assertEquals(res.status, 201);
+    const data: UeModule = await res.json();
+    assertEquals(data.idModule, "JIN705C");
+    assertEquals(data.coeff, 3.0);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /ue-modules 400 on missing fields", async () => {
+  mockFetch({ "/ue-modules": { method: "POST", status: 400 } });
+  try {
+    const res = await fetch("http://localhost/api/ue-modules", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({ idModule: "X" }),
+    });
+    assertEquals(res.status, 400);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ue-modules/:idModule/:idUE/:idPromo returns association (employee)", async () => {
+  mockFetch({ "/ue-modules/JIN702C/1/4AFISE25": ueModules[0] });
+  try {
+    const res = await fetch(
+      "http://localhost/api/ue-modules/JIN702C/1/4AFISE25%2F26",
+    );
+    assertEquals(res.status, 200);
+    const data: UeModule = await res.json();
+    assertEquals(data.coeff, 3.0);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ue-modules/:idModule/:idUE/:idPromo 403 for non-employee", async () => {
+  mockFetch({ "/ue-modules/JIN702C/1/4AFISE25": { status: 403 } });
+  try {
+    const res = await fetch(
+      "http://localhost/api/ue-modules/JIN702C/1/4AFISE25%2F26",
+    );
+    assertEquals(res.status, 403);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: PUT /ue-modules/:idModule/:idUE/:idPromo updates coeff", async () => {
+  const updated: UeModule = { ...ueModules[0], coeff: 5.0 };
+  mockFetch({
+    "/ue-modules/JIN702C/1/4AFISE25": {
+      method: "PUT",
+      status: 200,
+      body: updated,
+    },
+  });
+  try {
+    const res = await fetch(
+      "http://localhost/api/ue-modules/JIN702C/1/4AFISE25%2F26",
+      {
+        method: "PUT",
+        headers: { "content-type": "application/json" },
+        body: JSON.stringify({ coeff: 5.0 }),
+      },
+    );
+    assertEquals(res.status, 200);
+    const data: UeModule = await res.json();
+    assertEquals(data.coeff, 5.0);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: DELETE /ue-modules/:idModule/:idUE/:idPromo returns 204", async () => {
+  mockFetch({
+    "/ue-modules/JIN702C/1/4AFISE25": { method: "DELETE", status: 204 },
+  });
+  try {
+    const res = await fetch(
+      "http://localhost/api/ue-modules/JIN702C/1/4AFISE25%2F26",
+      { method: "DELETE" },
+    );
+    assertEquals(res.status, 204);
+  } finally {
+    restoreFetch();
+  }
+});
+
+// --- Mock DB ---
+
+Deno.test("mock DB: find ue-module by composite key", () => {
+  const db = createMockDb({ tables: { ueModules: [...ueModules] } });
+  const u = db.findOne<UeModule>(
+    "ueModules",
+    (u) =>
+      u.idModule === "JIN702C" && u.idUE === 1 && u.idPromo === "4AFISE25/26",
+  );
+  assertExists(u);
+  assertEquals(u.coeff, 3.0);
+});
+
+Deno.test("mock DB: filter ue-modules by promo", () => {
+  const db = createMockDb({ tables: { ueModules: [...ueModules] } });
+  const rows = db.findMany<UeModule>(
+    "ueModules",
+    (u) => u.idPromo === "4AFISE25/26",
+  );
+  assertEquals(rows.length, 2);
+});
+
+Deno.test("mock DB: insert ue-module", () => {
+  const db = createMockDb({ tables: { ueModules: [...ueModules] } });
+  db.insert<UeModule>("ueModules", {
+    idModule: "JIN705C",
+    idUE: 2,
+    idPromo: "3AFISE25/26",
+    coeff: 1.5,
+  });
+  assertEquals(db.getTable("ueModules").length, 4);
+});
+
+Deno.test("mock DB: update ue-module coeff", () => {
+  const db = createMockDb({ tables: { ueModules: [...ueModules] } });
+  db.updateWhere<UeModule>(
+    "ueModules",
+    (u) => u.idModule === "JIN702C" && u.idUE === 1,
+    { coeff: 6.0 },
+  );
+  assertEquals(
+    db.findOne<UeModule>(
+      "ueModules",
+      (u) => u.idModule === "JIN702C" && u.idUE === 1,
+    )?.coeff,
+    6.0,
+  );
+});
+
+Deno.test("mock DB: delete ue-module", () => {
+  const db = createMockDb({ tables: { ueModules: [...ueModules] } });
+  db.deleteWhere<UeModule>(
+    "ueModules",
+    (u) => u.idModule === "JIN702C" && u.idUE === 1,
+  );
+  assertEquals(db.getTable("ueModules").length, 2);
+});
diff --git a/tests/unit/ues_test.ts b/tests/unit/ues_test.ts
new file mode 100644
index 0000000..f823f7d
--- /dev/null
+++ b/tests/unit/ues_test.ts
@@ -0,0 +1,164 @@
+// Unit tests for /ues endpoints — fixtures, mock API, mock DB
+
+import { assertEquals, assertExists } from "@std/assert";
+import { mockFetch, restoreFetch } from "../helpers/api_mock.ts";
+import { createMockDb } from "../helpers/db_mock.ts";
+import { type UE, ues } from "../helpers/fixtures.ts";
+
+// --- Fixtures ---
+
+Deno.test("ues: fixtures have correct shape", () => {
+  assertEquals(ues.length, 2);
+  assertEquals(typeof ues[0].id, "number");
+  assertEquals(typeof ues[0].nom, "string");
+});
+
+// --- Mock API ---
+
+Deno.test("mock API: GET /ues returns list", async () => {
+  mockFetch({ "/ues": ues });
+  try {
+    const res = await fetch("http://localhost/api/ues");
+    assertEquals(res.status, 200);
+    const data: UE[] = await res.json();
+    assertEquals(data.length, 2);
+    assertExists(data.find((u) => u.nom === "UE Informatique"));
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ues/:id returns one UE", async () => {
+  mockFetch({ "/ues/1": ues[0] });
+  try {
+    const res = await fetch("http://localhost/api/ues/1");
+    assertEquals(res.status, 200);
+    const data: UE = await res.json();
+    assertEquals(data.id, 1);
+    assertEquals(data.nom, "UE Informatique");
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: GET /ues/:id 404 when not found", async () => {
+  mockFetch({
+    "/ues/99": { status: 404, body: { error: "Ressource introuvable" } },
+  });
+  try {
+    const res = await fetch("http://localhost/api/ues/99");
+    assertEquals(res.status, 404);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /ues creates UE (201)", async () => {
+  const newUE: UE = { id: 3, nom: "UE Physique" };
+  mockFetch({ "/ues": { method: "POST", status: 201, body: newUE } });
+  try {
+    const res = await fetch("http://localhost/api/ues", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({ nom: "UE Physique" }),
+    });
+    assertEquals(res.status, 201);
+    const data: UE = await res.json();
+    assertEquals(data.nom, "UE Physique");
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: POST /ues 400 on missing nom", async () => {
+  mockFetch({ "/ues": { method: "POST", status: 400 } });
+  try {
+    const res = await fetch("http://localhost/api/ues", {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({}),
+    });
+    assertEquals(res.status, 400);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: PUT /ues/:id updates nom", async () => {
+  const updated: UE = { id: 1, nom: "UE Informatique avancée" };
+  mockFetch({ "/ues/1": { method: "PUT", status: 200, body: updated } });
+  try {
+    const res = await fetch("http://localhost/api/ues/1", {
+      method: "PUT",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({ nom: "UE Informatique avancée" }),
+    });
+    assertEquals(res.status, 200);
+    const data: UE = await res.json();
+    assertEquals(data.nom, "UE Informatique avancée");
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: PUT /ues/:id 404 when not found", async () => {
+  mockFetch({ "/ues/99": { method: "PUT", status: 404 } });
+  try {
+    const res = await fetch("http://localhost/api/ues/99", {
+      method: "PUT",
+      body: JSON.stringify({ nom: "X" }),
+    });
+    assertEquals(res.status, 404);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: DELETE /ues/:id returns 204", async () => {
+  mockFetch({ "/ues/1": { method: "DELETE", status: 204 } });
+  try {
+    const res = await fetch("http://localhost/api/ues/1", { method: "DELETE" });
+    assertEquals(res.status, 204);
+  } finally {
+    restoreFetch();
+  }
+});
+
+Deno.test("mock API: DELETE /ues/:id 404 when not found", async () => {
+  mockFetch({ "/ues/99": { method: "DELETE", status: 404 } });
+  try {
+    const res = await fetch("http://localhost/api/ues/99", {
+      method: "DELETE",
+    });
+    assertEquals(res.status, 404);
+  } finally {
+    restoreFetch();
+  }
+});
+
+// --- Mock DB ---
+
+Deno.test("mock DB: find UE by id", () => {
+  const db = createMockDb({ tables: { ues: [...ues] } });
+  const u = db.findOne<UE>("ues", (u) => u.id === 1);
+  assertExists(u);
+  assertEquals(u.nom, "UE Informatique");
+});
+
+Deno.test("mock DB: insert UE", () => {
+  const db = createMockDb({ tables: { ues: [...ues] } });
+  db.insert<UE>("ues", { id: 3, nom: "UE Physique" });
+  assertEquals(db.getTable("ues").length, 3);
+});
+
+Deno.test("mock DB: update UE nom", () => {
+  const db = createMockDb({ tables: { ues: [...ues] } });
+  db.updateWhere<UE>("ues", (u) => u.id === 1, { nom: "Updated" });
+  assertEquals(db.findOne<UE>("ues", (u) => u.id === 1)?.nom, "Updated");
+});
+
+Deno.test("mock DB: delete UE", () => {
+  const db = createMockDb({ tables: { ues: [...ues] } });
+  db.deleteWhere<UE>("ues", (u) => u.id === 1);
+  assertEquals(db.getTable("ues").length, 1);
+});