1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>window.performance User Timing clearMeasures() method is working properly with navigation timing
attributes</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
<link rel="help" href="http://www.w3.org/TR/user-timing/#dom-performance-measure"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/webperftestharness.js"></script>
<script type="text/javascript">
// navigation timing attributes
var timingAttributes = [
'connectEnd',
'connectStart',
'domComplete',
'domContentLoadedEventEnd',
'domContentLoadedEventStart',
'domInteractive',
'domLoading',
'domainLookupEnd',
'domainLookupStart',
'fetchStart',
'loadEventEnd',
'loadEventStart',
'navigationStart',
'redirectEnd',
'redirectStart',
'requestStart',
'responseEnd',
'responseStart',
'unloadEventEnd',
'unloadEventStart'
];
// test data
var startMarkName = "mark_start";
var startMarkValue;
var endMarkName = "mark_end";
var endMarkValue;
var measures;
var testThreshold = 20;
// test measures
measureTestDelay = 200;
var TEST_MEASURES =
[
{
name: "measure_nav_start_no_end",
startMark: "navigationStart",
endMark: undefined,
exceptionTestMessage: "window.performance.measure(\"measure_nav_start_no_end\", " +
"\"navigationStart\") ran without throwing any exceptions.",
expectedStartTime: undefined,
expectedDuration: undefined,
entryMatch: undefined
},
{
name: "measure_nav_start_mark_end",
startMark: "navigationStart",
endMark: "mark_end",
exceptionTestMessage: "window.performance.measure(\"measure_nav_start_end\", \"navigationStart\", " +
"\"mark_end\") ran without throwing any exceptions.",
expectedStartTime: undefined,
expectedDuration: undefined,
entryMatch: undefined
},
{
name: "measure_mark_start_nav_end",
startMark: "mark_start",
endMark: "responseEnd",
exceptionTestMessage: "window.performance.measure(\"measure_start_nav_end\", \"mark_start\", " +
"\"responseEnd\") ran without throwing any exceptions.",
expectedStartTime: undefined,
expectedDuration: undefined,
entryMatch: undefined
},
{
name: "measure_nav_start_nav_end",
startMark: "navigationStart",
endMark: "responseEnd",
exceptionTestMessage: "window.performance.measure(\"measure_nav_start_nav_end\", " +
"\"navigationStart\", \"responseEnd\") ran without throwing any exceptions.",
expectedStartTime: undefined,
expectedDuration: undefined,
entryMatch: undefined
}
];
setup({explicit_done: true});
test_namespace();
function onload_test()
{
// test for existance of User Timing and Performance Timeline interface
if (window.performance.mark == undefined ||
window.performance.clearMarks == undefined ||
window.performance.measure == undefined ||
window.performance.clearMeasures == undefined ||
window.performance.getEntriesByName == undefined ||
window.performance.getEntriesByType == undefined ||
window.performance.getEntries == undefined)
{
test_true(false,
"The User Timing and Performance Timeline interfaces, which are required for this test, " +
"are defined.");
done();
}
else
{
// create the start mark for the test measures
window.performance.mark(startMarkName);
// get the start mark's value
startMarkValue = window.performance.getEntriesByName(startMarkName)[0].startTime;
// create the test end mark using the test delay; this will allow for a significant difference between
// the mark values that should be represented in the duration of measures using these marks
setTimeout(measure_test_cb, measureTestDelay);
}
}
function measure_test_cb()
{
// create the end mark for the test measures
window.performance.mark(endMarkName);
// get the end mark's value
endMarkValue = window.performance.getEntriesByName(endMarkName)[0].startTime;
// loop through measure scenarios
for (var i in TEST_MEASURES)
{
var scenario = TEST_MEASURES[i];
if (scenario.startMark != undefined && scenario.endMark == undefined)
{
// only startMark is defined, provide startMark and don't provide endMark
window.performance.measure(scenario.name, scenario.startMark);
// when startMark is provided to the measure() call, the value of the mark or navigation
// timing attribute whose name is provided is used for the startMark
scenario.expectedStartTime = (timingAttributes.indexOf(scenario.startMark) != -1 ?
window.performance.timing[scenario.startMark] -
window.performance.timing.navigationStart :
startMarkValue);
// when endMark isn't provided to the measure() call, a DOMHighResTimeStamp corresponding to
// the current time with a timebase of the navigationStart attribute is used
scenario.expectedDuration = ((new Date()) - window.performance.timing.navigationStart) -
scenario.expectedStartTime;
}
else if (scenario.startMark != undefined && scenario.endMark != undefined)
{
// both startMark and endMark are defined, provide both parameters
window.performance.measure(scenario.name, scenario.startMark, scenario.endMark);
// when startMark is provided to the measure() call, the value of the mark or navigation
// timing attribute whose name is provided is used for the startMark
scenario.expectedStartTime = (timingAttributes.indexOf(scenario.startMark) != -1 ?
window.performance.timing[scenario.startMark] -
window.performance.timing.navigationStart :
startMarkValue);
// when endMark is provided to the measure() call, the value of the mark whose name is
// provided is used for the startMark
scenario.expectedDuration = (timingAttributes.indexOf(scenario.endMark) != -1 ?
window.performance.timing[scenario.endMark] -
window.performance.timing.navigationStart :
endMarkValue) - scenario.expectedStartTime;
}
}
// test the test measures are returned by getEntriesByName
for (var i in TEST_MEASURES)
{
entries = window.performance.getEntriesByName(TEST_MEASURES[i].name);
test_measure(entries[0],
"window.performance.getEntriesByName(\"" + TEST_MEASURES[i].name + "\")[0]",
TEST_MEASURES[i].name,
TEST_MEASURES[i].expectedStartTime,
TEST_MEASURES[i].expectedDuration);
TEST_MEASURES[i].entryMatch = entries[0];
}
done();
}
function test_measure(measureEntry, measureEntryCommand, expectedName, expectedStartTime, expectedDuration)
{
// test name
test_true(measureEntry.name == expectedName, measureEntryCommand + ".name == \"" + expectedName + "\"");
// test startTime; since for a mark, the startTime is always equal to a mark's value or the value of a
// navigation timing attribute, the actual startTime should match the expected value exactly
test_true(Math.abs(measureEntry.startTime - expectedStartTime) == 0,
measureEntryCommand + ".startTime is correct");
// test entryType
test_true(measureEntry.entryType == "measure", measureEntryCommand + ".entryType == \"measure\"");
// test duration, allow for an acceptable threshold in the difference between the actual duration and the
// expected value for the duration
test_true(Math.abs(measureEntry.duration - expectedDuration) <= testThreshold, measureEntryCommand +
".duration is aproximately correct (up to " + testThreshold + "ms difference allowed)");
}
</script>
</head>
<body onload="onload_test();">
<h1>Description</h1>
<p>This test validates that the performance.measure() method is working properly when navigation timing
attributes are used in place of mark names. This test creates the following measures to test this method:
<ul>
<li>"measure_nav_start_no_end": created using a measure() call with a navigation timing attribute
provided as the startMark and nothing provided as the endMark</li>
<li>"measure_nav_start_mark_end": created using a measure() call with a navigation timing attribute
provided as the startMark and a mark name provided as the endMark</li>
<li>"measure_mark_start_nav_end": created using a measure() call with a mark name provided as the
startMark and a navigation timing attribute provided as the endMark</li>
<li>"measure_nav_start_nav_end":created using a measure() call with a navigation timing attribute
provided as both the startMark and endMark</li>
</ul>
After creating each measure, the existence of these measures is validated by calling
performance.getEntriesByName() with each measure name
</p>
<div id="log"></div>
</body>
</html>
|
