product-with-catch.spec.ts

import { createUrl, getProducts, Paths } from './get-env-vars'
import * as fns from './get-env-vars'

describe("GetEnvVars", () => {

  const MOCKED_PRODCUTS = [{ id: 1 }];

  global.fetch = jest.fn(() => Promise.resolve({
      json: () => Promise.resolve(MOCKED_PRODCUTS)
  }));

  const OLD_ENV = process.env;

  beforeEach(() => {
    process.env = { ...OLD_ENV };
    delete process.env.NODE_ENV;
  });

  afterEach(() => {
    process.env = OLD_ENV;
  });

  test('should create a new url', () => {
    process.env.BASE_URL = 'https://example.com';
    expect(createUrl(Paths.PRODUCTS)).toEqual(`${process.env.BASR_URL}/${Paths.PRODUCTS}`);
  });
  
  test('should get products', async () => {
    const loggerServiceMock = jest.spyOn(fns, 'createLogger').mockReturnValue({ error: console.error })

     expect(await getProducts()).toEqual(MOCKED_PRODCUTS)
     expect(loggerServiceMock).toBeCalled()
  })

})