Checkpoint: Masse salariale enrichie : import Excel administrateur côté serveur, projections annuelles 2025-2027 importées du fichier de référence, réel 2026 exclusivement calculé sur les liasses archivées, conservation des montants de référence et des centimes, éditions limitées aux primes et évolutions de l'exercice courant/futur. 74 tests, TypeScript et build validés.

server/masseSalarialeHttp.test.ts

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+import express from "express";
+import request from "supertest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+vi.mock("./_core/sdk", () => ({ sdk: { authenticateRequest: vi.fn() } }));
+vi.mock("./db", () => ({ importMasseSalariale: vi.fn() }));
+vi.mock("./masseSalarialeWorkbookImport", () => ({ parseMasseSalarialeWorkbookBuffer: vi.fn() }));
+
+import { sdk } from "./_core/sdk";
+import { importMasseSalariale } from "./db";
+import { registerMasseSalarialeHttpRoutes } from "./masseSalarialeHttp";
+import { parseMasseSalarialeWorkbookBuffer } from "./masseSalarialeWorkbookImport";
+
+function makeApp() {
+  const app = express();
+  registerMasseSalarialeHttpRoutes(app);
+  return app;
+}
+
+describe("route HTTP d'import Masse salariale", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("interdit l'import Excel à un profil non administrateur", async () => {
+    (sdk.authenticateRequest as ReturnType<typeof vi.fn>).mockResolvedValue({ id: 2, role: "standard" });
+
+    await request(makeApp())
+      .post("/api/masse-salariale/previsionnels")
+      .attach("file", Buffer.from("PK\x03\x04 fichier Excel"), { filename: "masse.xlsx", contentType: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" })
+      .expect(403);
+
+    expect(importMasseSalariale).not.toHaveBeenCalled();
+  });
+
+  it("importe un fichier Excel administrateur sans transmettre son contenu au client", async () => {
+    (sdk.authenticateRequest as ReturnType<typeof vi.fn>).mockResolvedValue({ id: 1, role: "admin" });
+    (parseMasseSalarialeWorkbookBuffer as ReturnType<typeof vi.fn>).mockReturnValue({
+      salaries: [{ matricule: "000001", nom: "NOM", prenom: "PRENOM", poste: "Poste", dateEmbauche: "2024-01-01" }],
+      remunerations: [{
+        matricule: "000001", annee: 2026, nature: "previsionnel", salaireAnnuelBrutHorsPrimesCents: 100_000,
+        salaireAnnuelBrutAvecPrimesCents: 110_000, salaireMensuelBrutHorsPrimesCents: 8_333,
+        tauxChargeBps: 4_500, primeAstreinteCents: 10_000, primeCents: 0, primeReferenceCents: 0,
+        evolutionCents: 0, evolutionReferenceCents: 0, periodeReference: "2026-08", statut: "previsionnel", source: "fichier_modele_2026-08-28",
+      }],
+    });
+    (importMasseSalariale as ReturnType<typeof vi.fn>).mockResolvedValue({ salaries: 1, remunerations: 1 });
+
+    const response = await request(makeApp())
+      .post("/api/masse-salariale/previsionnels")
+      .attach("file", Buffer.from("PK\x03\x04 fichier Excel"), { filename: "masse.xlsx", contentType: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" })
+      .expect(200);
+
+    expect(importMasseSalariale).toHaveBeenCalledWith(expect.any(Array), expect.any(Array), { replaceForecastYears: [2025, 2026, 2027] });
+    expect(response.body).toEqual({ salaries: 1, remunerations: 1, years: [2025, 2026, 2027] });
+    expect(JSON.stringify(response.body)).not.toContain("000001");
+  });
+});