task_scheduler/modules/gantt-chart-sk/gantt-chart-sk_puppeteer_test.ts

import { loadCachedTestBed, takeScreenshot, TestBed } from '../../../puppeteer-tests/util';
import { ThemeChooserSk } from '../../../infra-sk/modules/theme-chooser-sk/theme-chooser-sk';

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

  beforeEach(async () => {
    await testBed.page.goto(testBed.baseUrl);
    await testBed.page.setViewport({ width: 1000, height: 600 });
    await testBed.page.evaluate(() => {
      (<ThemeChooserSk>document.getElementsByTagName('theme-chooser-sk')[0]).darkmode = false;
    });
  });

  describe('screenshots', () => {
    it('simple chart', async () => {
      await testBed.page.click('#simple');
      await takeScreenshot(testBed.page, 'task-scheduler', 'gantt-chart-sk_simple');
    });

    it('simple chart with start and end', async () => {
      await testBed.page.click('#simple-start-end');
      await takeScreenshot(testBed.page, 'task-scheduler', 'gantt-chart-sk_simple-start-end');
    });

    it('simple chart with epochs', async () => {
      await testBed.page.click('#simple-epochs');
      await takeScreenshot(testBed.page, 'task-scheduler', 'gantt-chart-sk_simple-epochs');
      // Take a screenshot in dark mode.
      await testBed.page.evaluate(() => {
        (<ThemeChooserSk>document.getElementsByTagName('theme-chooser-sk')[0]).darkmode = true;
      });
      await takeScreenshot(testBed.page, 'task-scheduler', 'gantt-chart-sk_simple-epochs-dark');
    });

    it('mouse selection', async () => {
      // Display the chart.
      await testBed.page.click('#simple');

      // Move the mouse pointer onto the chart. The screenshot should show a
      // vertical cursor with timestamp.
      await testBed.page.mouse.move(150, 300);
      await takeScreenshot(testBed.page, 'task-scheduler', 'gantt-chart-sk_mouse-cursor');

      // Move the mouse over a bit. It should snap to the edge of one of the
      // blocks.
      await testBed.page.mouse.move(225, 300);
      await takeScreenshot(testBed.page, 'task-scheduler', 'gantt-chart-sk_mouse-cursor-snap');

      // Click and drag. The timestamp on the vertical cursor should disappear,
      // and a selection region should appear between the initial click location
      // and the current mouse location.
      await testBed.page.mouse.down();
      await testBed.page.mouse.move(400, 300);
      await takeScreenshot(testBed.page, 'task-scheduler', 'gantt-chart-sk_mouse-selecting');

      // Release the mouse button and move the pointer away. The selection
      // region should remain, with the mouse cursor off to the side.
      await testBed.page.mouse.move(450, 300);
      await testBed.page.mouse.up();
      await testBed.page.mouse.move(500, 300);
      await takeScreenshot(testBed.page, 'task-scheduler', 'gantt-chart-sk_mouse-selected');
    });
  });
});