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Issue 2860143002: Add tests for paint-timing, and move existing tests to same location (Closed)
Patch Set: Created 3 years, 7 months ago
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2 <head> 2 <head>
3 <title>Performance Paint Timing Test</title> 3 <title>Performance Paint Timing Test</title>
4 </head> 4 </head>
5 <body> 5 <body>
6 <script src="../../resources/testharness.js"></script> 6 <script src="../../resources/testharness.js"></script>
7 <script src="../../resources/testharnessreport.js"></script> 7 <script src="../../resources/testharnessreport.js"></script>
8 <script> 8 <script>
9 9
10 async_test(function (t) { 10 async_test(function (t) {
11 var observer = new PerformanceObserver( 11 var observer = new PerformanceObserver(
12 t.step_func(function (entryList) { 12 t.step_func(function (entryList) {
13 var entries = entryList.getEntries(); 13 var entries = entryList.getEntries();
14 // Nothing contentful to be painted yet. 14 // Nothing contentful to be painted yet.
15 assert_equals(entries.length, 1, 15 assert_equals(entries.length, 1,
16 "There should be only first paint timing instance."); 16 "There should be only first paint timing instance.");
17 assert_equals(entries[0].entryType, "paint", 17 assert_equals(entries[0].entryType, "paint",
18 "Expected entryType to be: paint."); 18 "Expected entryType to be: paint.");
19 assert_equals(entries[0].name, "first-paint", 19 assert_equals(entries[0].name, "first-paint",
20 "Expected name to be: first-paint."); 20 "Expected name to be: first-paint.");
21 assert_equals(entries[0].duration, 0, 21 assert_equals(entries[0].duration, 0,
22 "Expected duration to be: 0."); 22 "Expected duration to be: 0.");
23 observer.disconnect(); 23 observer.disconnect();
24 t.done(); 24 t.done();
25 }) 25 })
26 ); 26 );
27 observer.observe({entryTypes: ["paint"]}); 27 observer.observe({entryTypes: ["paint"]});
28 28
29 }, "Performance first paint timing entry is observable."); 29 }, "Performance first paint timing entry is observable. No first contentful paint.");
igrigorik 2017/05/08 20:37:04 Does it make sense to t.done() after onload?
panicker 2017/05/09 17:55:06 Good point, I added a step_timeout to wait for 1s
30 </script> 30 </script>
31 31
32 <div style="background-color:black;color:white;padding:20px;"></div> 32 <div style="background-color:black;color:white;padding:20px;"></div>
33 </body> 33 </body>
34 </html> 34 </html>
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