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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/element-timing/images-repeated-resource.html | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/element-timing/images-repeated-resource.html')
| -rw-r--r-- | testing/web-platform/tests/element-timing/images-repeated-resource.html | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/testing/web-platform/tests/element-timing/images-repeated-resource.html b/testing/web-platform/tests/element-timing/images-repeated-resource.html new file mode 100644 index 0000000000..f7296e05e7 --- /dev/null +++ b/testing/web-platform/tests/element-timing/images-repeated-resource.html @@ -0,0 +1,73 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Element Timing: observe elements with the same resource</title> +<body> +<style> +body { + margin: 0; +} +</style> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/element-timing-helpers.js"></script> +<script> + let beforeRender; + let numEntries = 0; + let loadTime1; + let loadTime2; + let renderTime1; + let renderTime2; + let img; + let img2; + async_test(function (t) { + assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented"); + const observer = new PerformanceObserver( + t.step_func(function(entryList) { + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + const pathname = window.location.origin + '/element-timing/resources/square100.png'; + // Easier to check the |element| attribute here since element ID is the same for both images. + checkElement(entry, pathname, entry.identifier, 'image_id', beforeRender, null); + checkNaturalSize(entry, 100, 100); + if (entry.identifier === 'my_image') { + ++numEntries; + loadTime1 = entry.loadTime; + renderTime1 = entry.renderTime; + assert_equals(entry.element, img); + + img2 = document.createElement('img'); + img2.src = 'resources/square100.png'; + img2.setAttribute('elementtiming', 'my_image2'); + img2.setAttribute('id', 'image_id'); + document.body.appendChild(img2); + beforeRender = performance.now(); + } + else if (entry.identifier === 'my_image2') { + ++numEntries; + loadTime2 = entry.loadTime; + renderTime2 = entry.renderTime; + assert_equals(entry.element, img2); + } + if (numEntries == 2) { + assert_greater_than(loadTime2, loadTime1, 'Second image loads after first.'); + assert_greater_than(renderTime2, renderTime1, 'Second image renders after first'); + t.done(); + } + }) + ); + observer.observe({entryTypes: ['element']}); + // We add the images during onload to be sure that the observer is registered + // in time for it to observe the element timing. + window.onload = () => { + // Add image of width and height equal to 100. + img = document.createElement('img'); + img.src = 'resources/square100.png'; + img.setAttribute('elementtiming', 'my_image'); + img.setAttribute('id', 'image_id'); + document.body.appendChild(img); + beforeRender = performance.now(); + }; + }, 'Elements with elementtiming and same src are observable.'); +</script> + +</body> |