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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/buffered-flag.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/buffered-flag.html')
| -rw-r--r-- | testing/web-platform/tests/element-timing/buffered-flag.html | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/testing/web-platform/tests/element-timing/buffered-flag.html b/testing/web-platform/tests/element-timing/buffered-flag.html new file mode 100644 index 0000000000..e7fcf059fb --- /dev/null +++ b/testing/web-platform/tests/element-timing/buffered-flag.html @@ -0,0 +1,40 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Element Timing: observe element with buffered flag</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> + async_test(t => { + assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented"); + const beforeRender = performance.now(); + const img = document.createElement('img'); + // Initial observer used to know when entry has been dispatched + new PerformanceObserver(() => { + // Second observer should require buffered flag to receive the already-dispatched entry. + new PerformanceObserver(t.step_func_done(entryList => { + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + const pathname = window.location.origin + '/images/black-rectangle.png'; + checkElement(entry, pathname, 'my_image', 'my_id', beforeRender, document.getElementById('my_id')); + // Test that viewport size is at least 100, so element is fully visible. + assert_greater_than_equal(document.documentElement.clientWidth, 100, 'Width should be >= 100'); + assert_greater_than_equal(document.documentElement.clientHeight, 100, 'Height should be >= 100'); + + checkRect(entry, [0, 100, 0, 50]); + checkNaturalSize(entry, 100, 50); + })).observe({type: 'element', buffered: true}); + }).observe({type: 'element'}); + img.src = '/images/black-rectangle.png'; + img.setAttribute('elementtiming', 'my_image'); + img.setAttribute('id', 'my_id'); + document.body.appendChild(img); + }, 'Element Timing entries are observable via buffered flag.'); +</script> +</body> |