media-segment-request.test.js
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import QUnit from 'qunit';
import {mediaSegmentRequest, REQUEST_ERRORS} from '../src/media-segment-request';
import xhrFactory from '../src/xhr';
import {useFakeEnvironment} from './test-helpers';
import Decrypter from '../src/decrypter-worker';
import worker from 'webwackify';
const resolveDecrypterWorker = () => {
let result;
try {
result = require.resolve('../src/decrypter-worker');
} catch (e) {
// no result
}
return result;
};
QUnit.module('Media Segment Request', {
beforeEach(assert) {
this.env = useFakeEnvironment(assert);
this.clock = this.env.clock;
this.requests = this.env.requests;
this.xhr = xhrFactory();
this.realDecrypter = worker(Decrypter, resolveDecrypterWorker());
this.mockDecrypter = {
listeners: [],
postMessage(message) {
const newMessage = Object.create(message);
newMessage.decrypted = message.encrypted;
this.listeners.forEach((fn)=>fn({
data: newMessage
}));
},
addEventListener(event, listener) {
this.listeners.push(listener);
},
removeEventListener(event, listener) {
this.listeners = this.listeners.filter((fn)=>fn !== listener);
}
};
this.xhrOptions = {
timeout: 1000
};
this.noop = () => {};
},
afterEach(assert) {
this.realDecrypter.terminate();
this.env.restore();
}
});
QUnit.test('cancels outstanding segment request on abort', function(assert) {
const done = assert.async();
assert.expect(7);
const abort = mediaSegmentRequest(
this.xhr,
this.xhrOptions,
this.noop,
{ resolvedUri: '0-test.ts' },
this.noop,
(error, segmentData) => {
assert.equal(this.requests.length, 1, 'there is only one request');
assert.equal(this.requests[0].uri, '0-test.ts', 'the request is for a segment');
assert.ok(this.requests[0].aborted, 'aborted the first request');
assert.ok(error, 'an error object was generated');
assert.equal(error.code, REQUEST_ERRORS.ABORTED, 'request was aborted');
done();
});
// Simulate Firefox's handling of aborted segments -
// Firefox sets the response to an empty array buffer if the xhr type is 'arraybuffer'
// and no data was received
this.requests[0].response = new ArrayBuffer();
abort();
});
QUnit.test('cancels outstanding key requests on abort', function(assert) {
let keyReq;
const done = assert.async();
assert.expect(7);
const abort = mediaSegmentRequest(
this.xhr,
this.xhrOptions,
this.noop,
{
resolvedUri: '0-test.ts',
key: {
resolvedUri: '0-key.php'
}
},
this.noop,
(error, segmentData) => {
assert.ok(keyReq.aborted, 'aborted the key request');
assert.equal(error.code, REQUEST_ERRORS.ABORTED, 'key request was aborted');
done();
});
assert.equal(this.requests.length, 2, 'there are two requests');
keyReq = this.requests.shift();
const segmentReq = this.requests.shift();
assert.equal(keyReq.uri, '0-key.php', 'the first request is for a key');
assert.equal(segmentReq.uri, '0-test.ts', 'the second request is for a segment');
// Fulfill the segment request
segmentReq.response = new Uint8Array(10).buffer;
segmentReq.respond(200, null, '');
abort();
});
QUnit.test('cancels outstanding key requests on failure', function(assert) {
let keyReq;
const done = assert.async();
assert.expect(7);
mediaSegmentRequest(
this.xhr,
this.xhrOptions,
this.noop,
{
resolvedUri: '0-test.ts',
key: {
resolvedUri: '0-key.php'
}
},
this.noop,
(error, segmentData) => {
assert.ok(keyReq.aborted, 'aborted the key request');
assert.equal(error.code, REQUEST_ERRORS.FAILURE, 'segment request failed');
done();
});
assert.equal(this.requests.length, 2, 'there are two requests');
keyReq = this.requests.shift();
const segmentReq = this.requests.shift();
assert.equal(keyReq.uri, '0-key.php', 'the first request is for a key');
assert.equal(segmentReq.uri, '0-test.ts', 'the second request is for a segment');
// Fulfill the segment request
segmentReq.respond(500, null, '');
});
QUnit.test('cancels outstanding key requests on timeout', function(assert) {
let keyReq;
const done = assert.async();
assert.expect(7);
mediaSegmentRequest(
this.xhr,
this.xhrOptions,
this.noop,
{
resolvedUri: '0-test.ts',
key: {
resolvedUri: '0-key.php'
}
},
this.noop,
(error, segmentData) => {
assert.ok(keyReq.aborted, 'aborted the key request');
assert.equal(error.code, REQUEST_ERRORS.TIMEOUT, 'key request failed');
done();
});
assert.equal(this.requests.length, 2, 'there are two requests');
keyReq = this.requests.shift();
const segmentReq = this.requests.shift();
assert.equal(keyReq.uri, '0-key.php', 'the first request is for a key');
assert.equal(segmentReq.uri, '0-test.ts', 'the second request is for a segment');
// Timeout request
this.clock.tick(2000);
});
QUnit.test('the key response is converted to the correct format', function(assert) {
let keyReq;
const done = assert.async();
const postMessage = this.mockDecrypter.postMessage;
assert.expect(9);
this.mockDecrypter.postMessage = (message) => {
const key = new Uint32Array(message.key.bytes,
message.key.byteOffset,
message.key.byteLength / 4);
assert.deepEqual(key,
new Uint32Array([0, 0x01000000, 0x02000000, 0x03000000]),
'passed the specified segment key');
postMessage.call(this.mockDecrypter, message);
};
mediaSegmentRequest(
this.xhr,
this.xhrOptions,
this.mockDecrypter,
{
resolvedUri: '0-test.ts',
key: {
resolvedUri: '0-key.php',
IV: [0, 0, 0, 1]
}
},
this.noop,
(error, segmentData) => {
assert.notOk(error, 'there are no errors');
assert.equal(this.mockDecrypter.listeners.length,
0,
'all decryption webworker listeners are unbound');
// verify stats
assert.equal(segmentData.stats.bytesReceived, 10, '10 bytes');
done();
});
assert.equal(this.requests.length, 2, 'there are two requests');
keyReq = this.requests.shift();
const segmentReq = this.requests.shift();
assert.equal(keyReq.uri, '0-key.php', 'the first request is for a key');
assert.equal(segmentReq.uri, '0-test.ts', 'the second request is for a segment');
segmentReq.response = new Uint8Array(10).buffer;
segmentReq.respond(200, null, '');
keyReq.response = new Uint32Array([0, 1, 2, 3]).buffer;
keyReq.respond(200, null, '');
});
QUnit.test('segment with key has bytes decrypted', function(assert) {
const done = assert.async();
assert.expect(8);
mediaSegmentRequest(
this.xhr,
this.xhrOptions,
this.realDecrypter,
{
resolvedUri: '0-test.ts',
key: {
resolvedUri: '0-key.php',
iv: {
bytes: new Uint32Array([0, 0, 0, 1])
}
}
},
this.noop,
(error, segmentData) => {
assert.notOk(error, 'there are no errors');
assert.ok(segmentData.bytes, 'decrypted bytes in segment');
// verify stats
assert.equal(segmentData.stats.bytesReceived, 8, '8 bytes');
done();
});
assert.equal(this.requests.length, 2, 'there are two requests');
const keyReq = this.requests.shift();
const segmentReq = this.requests.shift();
assert.equal(keyReq.uri, '0-key.php', 'the first request is for a key');
assert.equal(segmentReq.uri, '0-test.ts', 'the second request is for a segment');
segmentReq.response = new Uint8Array(8).buffer;
segmentReq.respond(200, null, '');
keyReq.response = new Uint32Array([0, 1, 2, 3]).buffer;
keyReq.respond(200, null, '');
// Allow the decrypter to decrypt
this.clock.tick(100);
});
QUnit.test('waits for every request to finish before the callback is run',
function(assert) {
const done = assert.async();
assert.expect(10);
mediaSegmentRequest(
this.xhr,
this.xhrOptions,
this.realDecrypter,
{
resolvedUri: '0-test.ts',
key: {
resolvedUri: '0-key.php',
iv: {
bytes: new Uint32Array([0, 0, 0, 1])
}
},
map: {
resolvedUri: '0-init.dat'
}
},
this.noop,
(error, segmentData) => {
assert.notOk(error, 'there are no errors');
assert.ok(segmentData.bytes, 'decrypted bytes in segment');
assert.ok(segmentData.map.bytes, 'init segment bytes in map');
// verify stats
assert.equal(segmentData.stats.bytesReceived, 8, '8 bytes');
done();
});
assert.equal(this.requests.length, 3, 'there are three requests');
const keyReq = this.requests.shift();
const initReq = this.requests.shift();
const segmentReq = this.requests.shift();
assert.equal(keyReq.uri, '0-key.php', 'the first request is for a key');
assert.equal(initReq.uri, '0-init.dat', 'the second request is for the init segment');
assert.equal(segmentReq.uri, '0-test.ts', 'the third request is for a segment');
segmentReq.response = new Uint8Array(8).buffer;
segmentReq.respond(200, null, '');
this.clock.tick(200);
initReq.response = new Uint32Array([0, 1, 2, 3]).buffer;
initReq.respond(200, null, '');
this.clock.tick(200);
keyReq.response = new Uint32Array([0, 1, 2, 3]).buffer;
keyReq.respond(200, null, '');
// Allow the decrypter to decrypt
this.clock.tick(100);
});