openmct/e2e/tests/functional/plugins/plot/plotRendering.e2e.spec.js

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/*
 * This test suite is dedicated to testing the rendering and interaction of plots.
 *
 */

import { createDomainObjectWithDefaults, getCanvasPixels } from '../../../../appActions.js';
import { expect, test } from '../../../../pluginFixtures.js';

test.describe('Plot Rendering', () => {
  let sineWaveGeneratorObject;

  test.beforeEach(async ({ page }) => {
    // Open a browser, navigate to the main page, and wait until all networkevents to resolve
    await page.goto('./', { waitUntil: 'domcontentloaded' });
    sineWaveGeneratorObject = await createDomainObjectWithDefaults(page, {
      type: 'Sine Wave Generator'
    });
  });

  test('Plots do not re-request data when a plot is clicked', async ({ page }) => {
    // Navigate to Sine Wave Generator
    await page.goto(sineWaveGeneratorObject.url);
    // Click on the plot canvas
    await page.locator('canvas').nth(1).click();
    // No request was made to get historical data
    const createMineFolderRequests = [];
    page.on('request', (req) => {
      createMineFolderRequests.push(req);
    });
    expect(createMineFolderRequests.length).toEqual(0);
  });

  test('Plot is rendered when infinity values exist', async ({ page }) => {
    // Edit Plot
    await editSineWaveToUseInfinityOption(page, sineWaveGeneratorObject);

    //Get pixel data from Canvas
    const plotPixels = await getCanvasPixels(page, 'canvas');
    const plotPixelSize = plotPixels.length;
    expect(plotPixelSize).toBeGreaterThan(0);
  });
});

/**
 * This function edits a sine wave generator with the default options and enables the infinity values option.
 *
 * @param {import('@playwright/test').Page} page
 * @param {import('../../../../appActions').CreateObjectInfo} sineWaveGeneratorObject
 * @returns {Promise<CreatedObjectInfo>} An object containing information about the edited domain object.
 */
async function editSineWaveToUseInfinityOption(page, sineWaveGeneratorObject) {
  await page.goto(sineWaveGeneratorObject.url);
  // Edit SWG properties to include infinity values
  await page.locator('[title="More actions"]').click();
  await page.locator('[title="Edit properties of this object."]').click();
  await page
    .getByRole('switch', {
      name: 'Include Infinity Values'
    })
    .check();

  await page
    .getByRole('button', {
      name: 'Save'
    })
    .click();

  // FIXME: Changes to SWG properties should be reflected on save, but they're not?
  // Thus, navigate away and back to the object.
  await page.goto('./#/browse/mine');
  await page.goto(sineWaveGeneratorObject.url);
}