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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Common test utilities. | |
6 | |
7 function emptyMock() {} | |
skare_
2013/08/29 00:03:37
the extension is assembled with sourcefile concate
vadimt
2013/08/29 00:28:22
This is not a part of the extension. There are 3 i
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8 | |
9 // Container for event handlers added by mocked 'addListener' functions. | |
10 var mockEventHandlers = {}; | |
11 | |
12 /** | |
13 * Mocks 'addListener' function of an API event. The mocked function will add | |
14 * handlers to arrays stored inside mockEventHandlers. | |
skare_
2013/08/29 00:03:37
hide implementation details? e.g. "mocked function
vadimt
2013/08/29 00:28:22
Done.
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15 * @param {Object} topLevelContainer Top-level container of the original | |
16 * function. Can be either chrome or instrumented. | |
skare_
2013/08/29 00:03:37
nit: maybe
'chrome' or 'instrumented'.
for consi
vadimt
2013/08/29 00:28:22
Done.
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17 * @param {string} eventIdentifier Event identifier, such as | |
18 * 'runtime.onSuspend'. | |
19 */ | |
20 function mockChromeEvent(topLevelContainer, eventIdentifier) { | |
21 var eventIdentifierParts = eventIdentifier.split('.'); | |
22 var eventName = eventIdentifierParts.pop(); | |
skare_
2013/08/29 00:03:37
maybe check that (eventName != undefined) or (even
vadimt
2013/08/29 00:28:22
Then it will crash. This is just a test anyways.
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23 var originalMethodContainer = topLevelContainer; | |
24 var mockEventContainer = mockEventHandlers; | |
25 eventIdentifierParts.forEach(function(fragment) { | |
skare_
2013/08/29 00:03:37
js styleguide suggests using normal iteration over
vadimt
2013/08/29 00:28:22
This is because for-in can lead to errors, not bec
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26 originalMethodContainer = | |
27 originalMethodContainer[fragment] = | |
skare_
2013/08/29 00:03:37
quick check on this and 29-31 -- intended to be (x
vadimt
2013/08/29 00:28:22
This is exactly what happens:
originalMethodContai
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28 originalMethodContainer[fragment] || {}; | |
29 mockEventContainer = | |
30 mockEventContainer[fragment] = | |
31 mockEventContainer[fragment] || {}; | |
32 }); | |
33 | |
34 mockEventContainer[eventName] = []; | |
35 originalMethodContainer[eventName] = { | |
36 addListener: function(callback) { | |
37 mockEventContainer[eventName].push(callback); | |
38 } | |
39 }; | |
40 } | |
41 | |
42 /** | |
43 * Gets the array of event handlers added by a mocked 'addListener' function. | |
44 * @param {string} eventIdentifier Event identifier, such as | |
45 * 'runtime.onSuspend'. | |
46 * @return {Array.<Function>} Array of handlers. | |
47 */ | |
48 function getMockHandlerContainer(eventIdentifier) { | |
49 var eventIdentifierParts = eventIdentifier.split('.'); | |
50 var mockEventContainer = mockEventHandlers; | |
51 eventIdentifierParts.forEach(function(fragment) { | |
52 mockEventContainer = mockEventContainer[fragment]; | |
53 }); | |
54 | |
55 return mockEventContainer; | |
56 } | |
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