perf/modules/plot-simple-sk/plot-simple-sk_puppeteer_test.ts

import { expect } from 'chai';
import {
  loadCachedTestBed,
  takeScreenshot,
  TestBed,
} from '../../../puppeteer-tests/util';

describe('plot-simple-sk', () => {
  let testBed: TestBed;
  before(async () => {
    testBed = await loadCachedTestBed();
  });

  beforeEach(async () => {
    await testBed.page.goto(testBed.baseUrl);
    await testBed.page.setViewport({ width: 750, height: 1400 });
  });

  it('should render the demo page', async () => {
    // Smoke test.
    expect(await testBed.page.$$('plot-simple-sk')).to.have.length(3);
  });

  describe('screenshots', () => {
    it('shows the default view', async () => {
      await takeScreenshot(testBed.page, 'perf', 'plot-simple-sk');
    });

    it('show anomalies', async () => {
      await testBed.page.click('#anomaly');
      await takeScreenshot(testBed.page, 'perf', 'plot-simple-sk');
    });
  });
});