R47 A1-A8：完成薪资管理模块

server/tests/unit/routes/employees.stats.test.js

@@ -53,6 +53,18 @@ async function buildApp({ permissionCodes = ["system.users"], stats } = {}) {
     { overall_score: 4, _count: { _all: 3 } },
     { overall_score: 4.5, _count: { _all: 2 } },
   ]);
+  const payslipAggregate = vi
+    .fn()
+    .mockResolvedValueOnce({
+      _sum: { net_amount: 18800 },
+      _avg: { net_amount: 9400 },
+      _count: { _all: 2 },
+    })
+    .mockResolvedValueOnce({
+      _sum: { net_amount: 17600 },
+      _avg: { net_amount: 8800 },
+      _count: { _all: 2 },
+    });
 
   app.decorate("prisma", {
     employee: {
@@ -80,6 +92,9 @@ async function buildApp({ permissionCodes = ["system.users"], stats } = {}) {
       aggregate: stats?.performanceReviewAggregate ?? performanceReviewAggregate,
       groupBy: stats?.performanceReviewGroupBy ?? performanceReviewGroupBy,
     },
+    payslip: {
+      aggregate: stats?.payslipAggregate ?? payslipAggregate,
+    },
   });
   app.decorate("authenticate", async (request) => {
     request.employee = {
@@ -123,11 +138,12 @@ async function buildApp({ permissionCodes = ["system.users"], stats } = {}) {
     performanceCycleFindFirst,
     performanceReviewAggregate,
     performanceReviewGroupBy,
+    payslipAggregate,
   };
 }
 
 describe("employees stats route", () => {
-  it("returns aggregated employee stats for read-only viewers", async () => {
+  it("returns aggregated employee stats for read-only viewers without salary data", async () => {
     const {
       app,
       employeeGroupBy,
@@ -139,6 +155,7 @@ describe("employees stats route", () => {
       performanceCycleFindFirst,
       performanceReviewAggregate,
       performanceReviewGroupBy,
+      payslipAggregate,
     } = await buildApp({
       permissionCodes: ["report.dashboard.view"],
     });
@@ -187,6 +204,7 @@ describe("employees stats route", () => {
         { score: 5, count: 0 },
       ],
     });
+    expect(payload.data.salarySummary).toBeNull();
     expect(employeeGroupBy).toHaveBeenCalledTimes(2);
     expect(employeeCount).toHaveBeenCalledTimes(2);
     expect(departmentFindMany).toHaveBeenCalledTimes(1);
@@ -196,6 +214,37 @@ describe("employees stats route", () => {
     expect(performanceCycleFindFirst).toHaveBeenCalledTimes(2);
     expect(performanceReviewAggregate).toHaveBeenCalledTimes(1);
     expect(performanceReviewGroupBy).toHaveBeenCalledTimes(1);
+    expect(payslipAggregate).not.toHaveBeenCalled();
+
+    await app.close();
+  });
+
+  it("returns salary summary for system.users viewers", async () => {
+    const { app, payslipAggregate } = await buildApp({
+      permissionCodes: ["system.users"],
+    });
+
+    const response = await app.inject({
+      method: "GET",
+      url: "/api/employees/stats",
+    });
+
+    expect(response.statusCode).toBe(200);
+    expect(response.json().data.salarySummary).toEqual({
+      currentMonth: {
+        month: expect.any(String),
+        totalNetAmount: 18800,
+        averageNetAmount: 9400,
+        issuedCount: 2,
+      },
+      previousMonth: {
+        month: expect.any(String),
+        totalNetAmount: 17600,
+        averageNetAmount: 8800,
+        issuedCount: 2,
+      },
+    });
+    expect(payslipAggregate).toHaveBeenCalledTimes(2);
 
     await app.close();
   });