mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-17 16:26:39 +03:00
Joey Parrish
7e6a0f38ff
This corrects/normalizes license headers in misc. files, such as config files, docs, build tools, tests, and externs. This does not affect the compiled output, and is only done for consistency. Issue #2638 Change-Id: I9d8da2de55243b08d7df2b743aac73c6f15e858a
102 lines
2.4 KiB
JavaScript
102 lines
2.4 KiB
JavaScript
/*! @license
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* Shaka Player
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* Copyright 2016 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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describe('StateHistory', () => {
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const oldDateNow = Date.now;
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/** @type {!shaka.util.StateHistory} */
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let history;
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/** @type {number} */
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let currentTime;
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beforeAll(() => {
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Date.now = () => currentTime;
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});
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afterAll(() => {
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Date.now = oldDateNow;
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});
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beforeEach(() => {
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currentTime = 0;
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history = new shaka.util.StateHistory();
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});
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// After a state change, the new state should have no duration. It must have
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// an update after (regardless of state) to update the duration.
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it('open entry have no duration', () => {
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history.update('a');
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currentTime += 5000;
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const entries = history.getCopy();
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expect(entries.length).toBe(1);
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expect(entries[0].state).toBe('a');
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expect(entries[0].duration).toBe(0);
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});
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// Updating while in the same state should only add duration to the previous
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// entry.
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it('accumulates time', () => {
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history.update('a');
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currentTime += 5000;
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history.update('a');
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const entries = history.getCopy();
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expect(entries.length).toBe(1);
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expect(entries[0].state).toBe('a');
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expect(entries[0].duration).toBe(5);
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});
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it('state changes update duration of last entry', () => {
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history.update('a');
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currentTime += 5000;
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history.update('b');
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const entries = history.getCopy();
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expect(entries.length).toBe(2);
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expect(entries[0].state).toBe('a');
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expect(entries[0].duration).toBe(5);
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expect(entries[1].state).toBe('b');
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expect(entries[1].duration).toBe(0);
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});
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it('sum of missing entry is zero', () => {
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expect(history.getTimeSpentIn('a')).toBe(0);
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});
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it('sum of open entry is zero', () => {
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history.update('a');
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expect(history.getTimeSpentIn('a')).toBe(0);
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});
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it('sums all entries of one state', () => {
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history.update('a');
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currentTime += 1000;
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history.update('a');
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currentTime += 5000;
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history.update('b');
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currentTime += 3000;
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history.update('a');
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currentTime += 1500;
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history.update('c');
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currentTime += 4000;
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history.update('b');
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currentTime += 7500;
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// Add another 'b' entry so that the elapsed time will be updated.
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history.update('b');
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expect(history.getTimeSpentIn('a')).toBe(7.5);
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expect(history.getTimeSpentIn('b')).toBe(10.5);
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expect(history.getTimeSpentIn('c')).toBe(4);
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});
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});
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