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-rw-r--r--javascript/videojs/test/unit/tracks/video-track-list.test.js117
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diff --git a/javascript/videojs/test/unit/tracks/video-track-list.test.js b/javascript/videojs/test/unit/tracks/video-track-list.test.js
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--- a/javascript/videojs/test/unit/tracks/video-track-list.test.js
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-/* eslint-env qunit */
-import VideoTrackList from '../../../src/js/tracks/video-track-list.js';
-import VideoTrack from '../../../src/js/tracks/video-track.js';
-import EventTarget from '../../../src/js/event-target.js';
-
-QUnit.module('Video Track List');
-
-QUnit.test('trigger "change" when "selectedchange" is fired on a track', function(assert) {
- const track = new EventTarget();
-
- track.loaded_ = true;
- const videoTrackList = new VideoTrackList([track]);
- let changes = 0;
- const changeHandler = function() {
- changes++;
- };
-
- videoTrackList.on('change', changeHandler);
- track.trigger('selectedchange');
- assert.equal(changes, 1, 'one change events for trigger');
-
- videoTrackList.off('change', changeHandler);
- videoTrackList.onchange = changeHandler;
-
- track.trigger('selectedchange');
- assert.equal(changes, 2, 'one change events for another trigger');
-
- videoTrackList.removeTrack(track);
- videoTrackList.off('change');
-});
-
-QUnit.test('only one track is ever selected', function(assert) {
- const track = new VideoTrack({selected: true});
- const track2 = new VideoTrack({selected: true});
- const track3 = new VideoTrack({selected: true});
- const track4 = new VideoTrack();
- const list = new VideoTrackList([track, track2]);
-
- assert.equal(track.selected, false, 'track is unselected');
- assert.equal(track2.selected, true, 'track2 is selected');
-
- track.selected = true;
- assert.equal(track.selected, true, 'track is selected');
- assert.equal(track2.selected, false, 'track2 is unselected');
-
- list.addTrack(track3);
- assert.equal(track.selected, false, 'track is unselected');
- assert.equal(track2.selected, false, 'track2 is unselected');
- assert.equal(track3.selected, true, 'track3 is selected');
-
- track2.selected = true;
- assert.equal(track.selected, false, 'track is unselected');
- assert.equal(track2.selected, true, 'track2 is selected');
- assert.equal(track3.selected, false, 'track3 is unselected');
-
- list.addTrack(track4);
- assert.equal(track.selected, false, 'track is unselected');
- assert.equal(track2.selected, true, 'track2 is selected');
- assert.equal(track3.selected, false, 'track3 is unselected');
- assert.equal(track4.selected, false, 'track4 is unselected');
-
- list.removeTrack(track);
- list.removeTrack(track2);
- list.removeTrack(track3);
- list.removeTrack(track4);
-});
-
-QUnit.test('all tracks can be unselected', function(assert) {
- const track = new VideoTrack();
- const track2 = new VideoTrack();
- const list = new VideoTrackList([track, track2]);
-
- assert.equal(track.selected, false, 'track is unselected');
- assert.equal(track2.selected, false, 'track2 is unselected');
-
- track.selected = true;
- assert.equal(track.selected, true, 'track is selected');
- assert.equal(track2.selected, false, 'track2 is unselected');
-
- track.selected = false;
- assert.equal(track.selected, false, 'track is unselected');
- assert.equal(track2.selected, false, 'track2 is unselected');
-
- list.removeTrack(track);
- list.removeTrack(track2);
-});
-
-QUnit.test('trigger a change event per selected change', function(assert) {
- const track = new VideoTrack({selected: true});
- const track2 = new VideoTrack({selected: true});
- const track3 = new VideoTrack({selected: true});
- const track4 = new VideoTrack();
- const list = new VideoTrackList([track, track2]);
- let change = 0;
-
- list.on('change', () => change++);
- track.selected = true;
- assert.equal(change, 1, 'one change triggered');
-
- list.addTrack(track3);
- assert.equal(change, 2, 'another change triggered by adding an selected track');
-
- track.selected = true;
- assert.equal(change, 3, 'another change trigger by changing selected');
-
- track.selected = false;
- assert.equal(change, 4, 'another change trigger by changing selected');
-
- list.addTrack(track4);
- assert.equal(change, 4, 'no change triggered by adding a unselected track');
-
- list.removeTrack(track);
- list.removeTrack(track2);
- list.removeTrack(track3);
- list.removeTrack(track4);
- list.off('change');
-});