ApiCore/ApiCore-Backend/src/common/idempotency/idempotency-cleanup.service.spec.ts

import { Logger } from '@nestjs/common';
import { Prisma } from '../../../generated/prisma';
import { PrismaService } from '../../prisma/prisma.service';
import { IdempotencyCleanupService } from './idempotency-cleanup.service';

describe('IdempotencyCleanupService', () => {
  let service: IdempotencyCleanupService;
  let prisma: {
    idempotencyRecord: { deleteMany: jest.Mock };
    consumedToken: { deleteMany: jest.Mock };
  };

  beforeEach(() => {
    prisma = {
      idempotencyRecord: {
        deleteMany: jest.fn().mockResolvedValue({ count: 0 }),
      },
      consumedToken: { deleteMany: jest.fn().mockResolvedValue({ count: 0 }) },
    };
    service = new IdempotencyCleanupService(prisma as unknown as PrismaService);
  });

  afterEach(() => {
    jest.restoreAllMocks();
  });

  it('removes records older than the retention period and expired tokens', async () => {
    prisma.idempotencyRecord.deleteMany.mockResolvedValue({ count: 3 });
    const now = new Date('2026-10-12T04:00:00.000Z');

    await expect(service.removeExpired(now)).resolves.toBe(3);

    expect(prisma.idempotencyRecord.deleteMany).toHaveBeenCalledWith({
      where: { createdAt: { lt: new Date('2026-07-14T04:00:00.000Z') } },
    });
    expect(prisma.consumedToken.deleteMany).toHaveBeenCalledWith({
      where: { expiresAt: { lt: now } },
    });
  });

  // The cron tick's own errors would otherwise reach the scheduler's logger
  // with the full Prisma message and stack.
  it('the daily tick never throws and logs a failure without the Prisma message', async () => {
    const errorSpy = jest
      .spyOn(Logger.prototype, 'error')
      .mockImplementation(() => undefined);
    prisma.idempotencyRecord.deleteMany.mockRejectedValue(
      new Prisma.PrismaClientKnownRequestError('key "Max Mustermann"', {
        code: 'P2024',
        clientVersion: '7.9.1',
        meta: { modelName: 'IdempotencyRecord' },
      }),
    );

    await expect(service.scheduledCleanup()).resolves.toBeUndefined();

    const [message, stack] = errorSpy.mock.calls[0] as [string, unknown];
    expect(message).toContain('P2024');
    expect(message).not.toContain('Mustermann');
    expect(stack).toBeUndefined();
  });
});