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Side by Side Diff: third_party/WebKit/LayoutTests/external/wpt/preload/dynamic-adding-preload.html

Issue 2697453005: Import wpt@758b3b4cfa805067f36121333ba031e583d3a62c (Closed)
Patch Set: Add -expected.txt files. Created 3 years, 10 months ago
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2 <script src="/resources/testharness.js"></script> 2 <script src="/resources/testharness.js"></script>
3 <script src="/resources/testharnessreport.js"></script> 3 <script src="/resources/testharnessreport.js"></script>
4 <script src="/preload/resources/preload_helper.js"></script>
4 <script> 5 <script>
5 var t = async_test('Makes sure that a dynamically added preloaded resource i s downloaded'); 6 var t = async_test('Makes sure that a dynamically added preloaded resource i s downloaded');
6 </script> 7 </script>
7 <body> 8 <body>
8 <script> 9 <script>
9 t.step(function() { 10 t.step(function() {
11 verifyPreloadAndRTSupport();
10 var link = document.createElement("link"); 12 var link = document.createElement("link");
11 assert_true(link.relList && link.relList.supports && link.relList.suppor ts("preload"), "relList is not defined or browser doesn't support preload.");
12 link.as = "script"; 13 link.as = "script";
13 link.rel = "preload"; 14 link.rel = "preload";
14 link.href = "resources/dummy.js"; 15 link.href = "resources/dummy.js";
15 link.onload = t.step_func(function() { 16 link.onload = t.step_func(function() {
16 t.step_timeout(function() { 17 t.step_timeout(function() {
17 assert_equals(performance.getEntriesByType("resource").length, 3 ); 18 verifyNumberOfDownloads("resources/dummy.js", 1);
18 t.done(); 19 t.done();
19 }, 0); 20 }, 0);
20 }); 21 });
21 document.body.appendChild(link); 22 document.body.appendChild(link);
22 }); 23 });
23 </script> 24 </script>
24 </body> 25 </body>
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