redash/client/app/visualizations/chart/Editor/DataLabelsSettings.test.js

import React from 'react';
import enzyme from 'enzyme';

import getOptions from '../getOptions';
import DataLabelsSettings from './DataLabelsSettings';

function findByTestID(wrapper, testId) {
  return wrapper.find(`[data-test="${testId}"]`);
}

function mount(options, done) {
  options = getOptions(options);
  return enzyme.mount((
    <DataLabelsSettings
      visualizationName="Test"
      data={{ columns: [], rows: [] }}
      options={options}
      onOptionsChange={(changedOptions) => {
        expect(changedOptions).toMatchSnapshot();
        done();
      }}
    />
  ));
}

describe('Visualizations -> Chart -> Editor -> Data Labels Settings', () => {
  test('Sets Show Data Labels option', (done) => {
    const el = mount({
      globalSeriesType: 'column',
      showDataLabels: false,
    }, done);

    findByTestID(el, 'Chart.DataLabels.ShowDataLabels').last().find('input')
      .simulate('change', { target: { checked: true } });
  });

  test('Changes number format', (done) => {
    const el = mount({
      globalSeriesType: 'column',
      numberFormat: '0[.]0000',
    }, done);

    findByTestID(el, 'Chart.DataLabels.NumberFormat').last()
      .simulate('change', { target: { value: '0.00' } });
  });

  test('Changes percent values format', (done) => {
    const el = mount({
      globalSeriesType: 'column',
      percentFormat: '0[.]00%',
    }, done);

    findByTestID(el, 'Chart.DataLabels.PercentFormat').last()
      .simulate('change', { target: { value: '0.0%' } });
  });

  test('Changes date/time format', (done) => {
    const el = mount({
      globalSeriesType: 'column',
      dateTimeFormat: 'YYYY-MM-DD HH:mm:ss',
    }, done);

    findByTestID(el, 'Chart.DataLabels.DateTimeFormat').last()
      .simulate('change', { target: { value: 'YYYY MMM DD' } });
  });

  test('Changes data labels format', (done) => {
    const el = mount({
      globalSeriesType: 'column',
      textFormat: null,
    }, done);

    findByTestID(el, 'Chart.DataLabels.TextFormat').last()
      .simulate('change', { target: { value: '{{ @@x }} :: {{ @@y }} / {{ @@yPercent }}' } });
  });
});