b252a5f0bb
Automatic update from web-platform-tests Adjust imagesrcset test for device pixel ratio (#17184) -- wp5At-commits: 62c5b2855a5d54ef66165dc23a511871715f3ab4 wpt-pr: 17184
37 lines
1.5 KiB
HTML
37 lines
1.5 KiB
HTML
<!DOCTYPE html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/preload/resources/preload_helper.js"></script>
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<script>
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var t = async_test('Makes sure that a dynamically added preload with imagesrcset works');
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</script>
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<body>
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<script>
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t.step(function() {
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verifyPreloadAndRTSupport();
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var expectation = new Array(4).fill(0);
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if (window.devicePixelRatio < 1.5) {
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expectation[2] = 1;
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} else if (window.devicePixelRatio >= 1.5) {
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expectation[3] = 1;
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}
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var link = document.createElement("link");
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link.as = "image";
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link.rel = "preload";
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link.href = "resources/square.png?default";
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link.imageSrcset = "resources/square.png?200 200w, resources/square.png?400 400w, resources/square.png?800 800w";
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link.imageSizes = "400px";
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link.onload = t.step_func(function() {
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t.step_timeout(function() {
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verifyNumberOfResourceTimingEntries("resources/square.png?default", expectation[0]);
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verifyNumberOfResourceTimingEntries("resources/square.png?200", expectation[1]);
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verifyNumberOfResourceTimingEntries("resources/square.png?400", expectation[2]);
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verifyNumberOfResourceTimingEntries("resources/square.png?800", expectation[3]);
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t.done();
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}, 0);
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});
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document.body.appendChild(link);
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});
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</script>
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</body>
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