oblique-strategies-web-api/src/modules/card/__tests__/controller.test.ts

import {
  beforeEach,
  describe,
  expect,
  it,
  vi,
} from 'vitest';
import { FastifyInstance, FastifyReply, FastifyRequest } from 'fastify';
import { CardServiceImpl } from '../service';
import { CardController, CardControllerImpl } from '../controller';

describe('CardController', () => {
  let cardController: CardController;

  beforeEach(() => {
    cardController = new CardControllerImpl();
  });

  describe('generate', () => {
    it('generates cards', async () => {
      vi
        .spyOn(CardServiceImpl.prototype, 'generate')
        .mockReturnValueOnce('random card');

      const request = {
        query: {},
      } as FastifyRequest;
      const reply = {
        send: vi.fn(),
      } as unknown as FastifyReply;
      const fastifyInstance = {} as unknown as FastifyInstance;
      const generate = cardController.generate.bind(fastifyInstance);
      await generate(request, reply);
      expect(reply.send).toBeCalledWith('random card');
    });
  });
});