final-test-for-mutation

test-for-mutation

  it('should trigger mutation when submit button clicked', async () => {
    // NB submit button relies on the redux store having valid data
    // which is why I set it here
    set('reduxState', {
      selectedMeters: [123],
      selectedMeasurements: ['elec_power_real'],
      exportParameters: {
        dateRange: {
          start: new Date(Date.UTC(2017, 0, 1)),
          finish: new Date(Date.UTC(2018, 0, 1))
        }
      },
      availableOptions: {
        availableAggregationLevels: ['123'],
        availableTimeAggregationLevels: ['sdfs'],
        availableFileTypes: ['basd'],
        availableTimeZones: ['45']
      }
    });
    const button = getWrapper('button');
    button.simulate('click');

    // NB - without this, the mutation will still be processing when the expectation fires
    // This is a technique from the official Apollo guide: 
    // https://www.apollographql.com/docs/guides/testing-react-components.html
    await wait(0);

    // pretty hacky but the best I could come up with
    const result = JSON.parse(
      getWrapper('[data-result]').props('data-result')['data-result']
    );
    expect(result.data.availableOptions.submitted).toEqual(true); //tslint:disable-line
  });