test: harden business boundary conditions

apps/server/src/operation-logs/operation-logs.service.spec.ts

@@ -0,0 +1,52 @@
+import 'reflect-metadata';
+import { plainToInstance } from 'class-transformer';
+import { validate } from 'class-validator';
+import { QueryOperationLogsDto } from './dto/operation-log.dto';
+import { OperationLogsService } from './operation-logs.service';
+
+const createQb = () => ({
+  orderBy: jest.fn().mockReturnThis(),
+  andWhere: jest.fn().mockReturnThis(),
+  skip: jest.fn().mockReturnThis(),
+  take: jest.fn().mockReturnThis(),
+  getManyAndCount: jest.fn().mockResolvedValue([[], 0]),
+});
+
+describe('operation log query boundaries', () => {
+  it.each(['0', '-1', '1.5', 'abc'])('rejects invalid page %s', async (page) => {
+    const dto = plainToInstance(QueryOperationLogsDto, { page });
+    expect((await validate(dto)).some((error) => error.property === 'page')).toBe(true);
+  });
+
+  it.each(['0', '201', '1.5', 'abc'])('rejects invalid page size %s', async (pageSize) => {
+    const dto = plainToInstance(QueryOperationLogsDto, { pageSize });
+    expect((await validate(dto)).some((error) => error.property === 'pageSize')).toBe(true);
+  });
+
+
+  it.each(['2026-02-31', '2026-07-13T00:00:00Z'])(
+    'rejects invalid or non-date-only value %s',
+    async (startDate) => {
+      const dto = plainToInstance(QueryOperationLogsDto, { startDate });
+      expect((await validate(dto)).some((error) => error.property === 'startDate')).toBe(true);
+    },
+  );
+
+  it('transforms valid pagination and applies its database window', async () => {
+    const dto = plainToInstance(QueryOperationLogsDto, { page: '2', pageSize: '20' });
+    expect(await validate(dto)).toEqual([]);
+    const qb = createQb();
+    const service = new OperationLogsService({ createQueryBuilder: jest.fn().mockReturnValue(qb) } as never);
+    await service.findAll(dto);
+    expect(qb.skip).toHaveBeenCalledWith(20);
+    expect(qb.take).toHaveBeenCalledWith(20);
+  });
+
+  it('rejects a reversed period before opening a query', async () => {
+    const repo = { createQueryBuilder: jest.fn() };
+    const service = new OperationLogsService(repo as never);
+    await expect(service.findAll({ startDate: '2026-08-01', endDate: '2026-07-31' }))
+      .rejects.toThrow('结束日期不能早于开始日期');
+    expect(repo.createQueryBuilder).not.toHaveBeenCalled();
+  });
+});