1 files changed, 111 insertions, 0 deletions
diff --git a/javascript/videojs/test/unit/control-bar/skip-buttons/skip-backward-button.test.js b/javascript/videojs/test/unit/control-bar/skip-buttons/skip-backward-button.test.js
new file mode 100644
index 0000000..02a4cd1
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+++ b/javascript/videojs/test/unit/control-bar/skip-buttons/skip-backward-button.test.js
@@ -0,0 +1,111 @@
+/* eslint-env qunit */
+import TestHelpers from '../../test-helpers';
+import sinon from 'sinon';
+import { createTimeRange } from '../../../../src/js/utils/time';
+import videojs from '../../../../src/js/video.js';
+
+QUnit.module('SkipBackwardButton');
+
+QUnit.test('is not visible if option is not set', function(assert) {
+  const player = TestHelpers.makePlayer({});
+  const button = player.controlBar.skipBackward;
+
+  assert.expect(1);
+  assert.ok(button.hasClass('vjs-hidden'), 'has the vjs-hidden class');
+
+  player.dispose();
+});
+
+QUnit.test('is not visible if option is set with an invalid config', function(assert) {
+  const player = TestHelpers.makePlayer({controlBar: {skipButtons: {backward: 4}}});
+  const button = player.controlBar.skipBackward;
+
+  assert.expect(1);
+  assert.ok(button.hasClass('vjs-hidden'), 'has the vjs-hidden class');
+
+  player.dispose();
+});
+
+QUnit.test('is visible if option is set with a valid config', function(assert) {
+  const player = TestHelpers.makePlayer({controlBar: {skipButtons: {backward: 5}}});
+  const button = player.controlBar.skipBackward;
+
+  assert.expect(2);
+  assert.notOk(button.hasClass('vjs-hidden'), 'button is not hidden');
+  assert.ok(button.hasClass('vjs-skip-backward-5'), 'button shows correct icon');
+
+  player.dispose();
+});
+
+QUnit.test('control text should specify amount seconds that can be skipped backward', function(assert) {
+  const player = TestHelpers.makePlayer({controlBar: {skipButtons: {backward: 10}}});
+  const button = player.controlBar.skipBackward;
+
+  assert.expect(1);
+  assert.strictEqual(button.controlText_, 'Skip backward 10 seconds', 'control text specifies number of seconds backward');
+
+  player.dispose();
+});
+
+QUnit.test('skip to beginning of seekable range in live video if current time - seekableStart is less than skip bacward time', function(assert) {
+  const player = TestHelpers.makePlayer({controlBar: {skipButtons: {backward: 30}}});
+  const button = player.controlBar.skipBackward;
+
+  player.options_.liveui = true;
+  player.seekable = () => createTimeRange(20, 40);
+  player.duration(Infinity);
+  player.currentTime(22);
+
+  const curTimeSpy = sinon.spy(player, 'currentTime');
+
+  button.trigger('click');
+
+  assert.expect(1);
+  assert.equal(curTimeSpy.getCall(1).args[0], 20, 'player set to start of seekable range');
+
+  player.dispose();
+});
+
+QUnit.test('skips to beginning of video if current time is less than configured skip backward time', function(assert) {
+  const player = TestHelpers.makePlayer({controlBar: {skipButtons: {backward: 30}}});
+  const button = player.controlBar.skipBackward;
+
+  player.currentTime(25);
+
+  const curTimeSpy = sinon.spy(player, 'currentTime');
+
+  button.trigger('click');
+
+  assert.expect(1);
+  assert.equal(curTimeSpy.getCall(1).args[0], 0, 'player current time is set to start of video');
+
+  player.dispose();
+});
+
+QUnit.test('skip backward in video by configured skip backward time amount', function(assert) {
+  const player = TestHelpers.makePlayer({controlBar: {skipButtons: {backward: 30}}});
+  const button = player.controlBar.skipBackward;
+
+  player.currentTime(31);
+
+  const curTimeSpy = sinon.spy(player, 'currentTime');
+
+  button.trigger('click');
+
+  assert.expect(1);
+  assert.equal(curTimeSpy.getCall(1).args[0], 1, 'player current time set 30 seconds back on button click');
+
+  player.dispose();
+});
+
+QUnit.test('localizes on languagechange', function(assert) {
+  const player = TestHelpers.makePlayer({controlBar: {skipButtons: {backward: 30}}});
+  const button = player.controlBar.skipBackward;
+
+  videojs.addLanguage('test', {'Skip backward {1} seconds': '{1} BACKWARD'});
+  player.language('test');
+
+  assert.equal(button.$('.vjs-control-text').textContent, '30 BACKWARD', 'control text updates on languagechange');
+
+  player.dispose();
+});