golden/modules/triage-history-sk/triage-history-sk_puppeteer_test.ts

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

describe('triage-history-sk', () => {
  let testBed: TestBed;
  before(async () => {
    testBed = await loadGoldWebpack();
  });

  beforeEach(async () => {
    await testBed.page.goto(`${testBed.baseUrl}/dist/triage-history-sk.html`);
  });

  it('should render the demo page', async () => {
    // Smoke test.
    expect(await testBed.page.$$('triage-history-sk')).to.have.length(2);
  });

  describe('screenshots', async () => {
    // We choose not to draw these two cases separately, since a blank image in Gold would likely
    // be confusing, despite being correct. Showing the headers adds a bit of documentation to the
    // images.
    it('draws either empty or shows the last history object', async () => {
      await testBed.page.setViewport({ width: 400, height: 200 });
      await takeScreenshot(testBed.page, 'gold', 'triage-history-sk');
    });
  });
});