import getBasicAnalyticsData from './getBasicAnalyticsData';
import getSystemType from './getSystemType';

jest.mock('./getSystemType');

describe('getBasicAnalyticsData', () => {
  beforeEach(() => {
    window.innerHeight = 123;
    window.innerWidth = 42;
  });

  it('contains the specified `pageType`', () => {
    const data = getBasicAnalyticsData({ pageType: 'a fancy page type' });

    expect(data).toMatchObject({
      page: {
        pageType: 'a fancy page type',
      },
    });
  });

  it('contains the viewport dimensions (height and width)', () => {
    const data = getBasicAnalyticsData({});

    expect(data).toMatchObject({
      page: {
        viewportHeight: 123,
        viewportWidth: 42,
      },
    });
  });

  it('contains `0` as viewport dimensions if they are not set on the window', () => {
    window.innerHeight = undefined;
    window.innerWidth = undefined;
    const data = getBasicAnalyticsData({});

    expect(data).toMatchObject({
      page: {
        viewportHeight: 0,
        viewportWidth: 0,
      },
    });
  });

  it('contains the system type', () => {
    getSystemType.mockReturnValueOnce('some system type');

    const data = getBasicAnalyticsData({});

    expect(data).toMatchObject({
      environment: {
        systemType: 'some system type',
      },
    });
  });

  it('passes the specified `NODE_ENV` and `DOODLE_ENV` when determining the system type', () => {
    const envs = { NODE_ENV: 'test', DOODLE_ENV: 'party' };
    const data = getBasicAnalyticsData(envs);

    expect(getSystemType).toHaveBeenLastCalledWith(envs);
  });
});