pokemon.trade/spec/javascript/frontend/api.test.js

import API, {instance} from 'packs/frontend/api';

import MockAdapter from 'axios-mock-adapter';

describe('API', () => {
  const mock = new MockAdapter(instance);
  afterAll(() => {
    mock.restore();
  });

  describe('API.Pokemon', () => {
    describe('index()', () => {
      it('returns the response', async () => {
        const expected = {foo: 'bar'};
        mock.onGet('/api/v1/pokemon').reply(200, expected);

        const response = await API.Pokemon.index();
        expect(response.data).toEqual(expected);
      });
    });

    describe('get(id)', () => {
      it('returns the response', async () => {
        const expected = {id: 1, name: 'pukuchu'};
        mock.onGet(`/api/v1/pokemon/${expected.id}`).reply(200, expected);

        const response = await API.Pokemon.get(expected.id);
        expect(response.data).toEqual(expected);
      });
    });
  });
});