Back to Repositories

Testing Button Component Localization in Video.js

This test suite evaluates the Button component in Video.js, focusing on localization functionality and DOM element creation. It verifies proper text translation and attribute handling for button controls in the video player interface.

Test Coverage Overview

The test coverage focuses on button localization and DOM element generation in Video.js.

Tests button text localization across different languages
Verifies proper HTML element creation
Validates button attributes and text content
Ensures proper cleanup through disposal

Implementation Analysis

The testing approach uses QUnit framework with isolated component testing.

Implementation follows the Arrange-Act-Assert pattern with test helpers for player instantiation. The tests verify both DOM structure and localized content rendering, utilizing QUnit’s assertion methods for comprehensive validation.

Technical Details

Testing Framework: QUnit
Test Helpers: Custom player creation utilities
Component Testing: Button class from Video.js
Environment: ESLint configured for QUnit
Language Support: Tests Spanish localization

Best Practices Demonstrated

The test suite demonstrates strong testing practices through isolation and thorough cleanup.

Proper resource cleanup after tests
Multiple assertions for comprehensive validation
Clear test case organization
Effective use of test helpers
Isolation of component under test

videojs/videoJs

test/unit/button.test.js

            
/* eslint-env qunit */
import Button from '../../src/js/button.js';
import TestHelpers from './test-helpers.js';

QUnit.module('Button');

QUnit.test('should localize its text', function(assert) {
  assert.expect(3);

  const player = TestHelpers.makePlayer({
    language: 'es',
    languages: {
      es: {
        Play: 'Juego'
      }
    }
  });

  const testButton = new Button(player);

  testButton.controlText_ = 'Play';
  const el = testButton.createEl();

  assert.ok(el.nodeName.toLowerCase().match('button'));
  assert.ok(el.innerHTML.match(/vjs-control-text"?[^<>]*>Juego/));
  assert.equal(el.getAttribute('title'), 'Juego');

  testButton.dispose();
  player.dispose();
});