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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/element-timing/image-src-change.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/element-timing/image-src-change.html')
| -rw-r--r-- | testing/web-platform/tests/element-timing/image-src-change.html | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/testing/web-platform/tests/element-timing/image-src-change.html b/testing/web-platform/tests/element-timing/image-src-change.html new file mode 100644 index 0000000000..7416a3f365 --- /dev/null +++ b/testing/web-platform/tests/element-timing/image-src-change.html @@ -0,0 +1,86 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Element Timing: src change triggers new entry</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> + <img elementtiming='my_image' id='my_id' /> + <script> + setup({"hide_test_state": true}); + + const performanceEntryPromise = (pathname) => { + return new Promise(resolve => { + new PerformanceObserver((entryList, observer) => { + assert_equals(entryList.getEntries().length, 1); + if (entryList.getEntries()[0].url == pathname) { + observer.disconnect(); + resolve(entryList.getEntries()[0]); + } + }).observe({ type: 'element' }); + }); + } + + promise_test(async (t) => { + assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented"); + + // Take beforeRender timestamp. + const beforeRender1 = performance.now(); + + const img = document.getElementById('my_id'); + + const url1 = 'resources/square100.png'; + + const pathname1 = (new URL(url1, document.location)).href + + // Register performance observer. + const promise1 = performanceEntryPromise(pathname1); + + //Load image + await new Promise(resolve => { + img.addEventListener('load', resolve); + img.src = url1; + }); + + // Get element entry. + const entry1 = await promise1; + + // Check entry. + checkElement(entry1, pathname1, 'my_image', 'my_id', beforeRender1, img); + checkRect(entry1, [0, 100, 0, 100]); + checkNaturalSize(entry1, 100, 100); + + // Take beforeRender timestamp before changing image src. + const beforeRender2 = performance.now(); + + // Set the src to trigger another entry. + const url2 = '/images/black-rectangle.png'; + + const pathname2 = (new URL(url2, document.location)).href; + + const promise2 = performanceEntryPromise(pathname2); + + //Load image with changed src. + await new Promise(resolve => { + img.addEventListener('load', resolve); + img.src = url2; + }); + + // Get the corresponding element entry. + const entry2 = await promise2; + + // Check entry. + checkElement(entry2, pathname2, 'my_image', 'my_id', beforeRender2, img); + checkRect(entry2, [0, 100, 0, 50]); + checkNaturalSize(entry2, 100, 50); + }, 'Element Timing: changing src causes a new entry to be dispatched.') + </script> + +</body> |