diff options
Diffstat (limited to '')
| -rw-r--r-- | testing/web-platform/tests/element-timing/observe-video-poster.html | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/testing/web-platform/tests/element-timing/observe-video-poster.html b/testing/web-platform/tests/element-timing/observe-video-poster.html new file mode 100644 index 0000000000..5607733529 --- /dev/null +++ b/testing/web-platform/tests/element-timing/observe-video-poster.html @@ -0,0 +1,32 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Element Timing: observe video poster image</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/element-timing-helpers.js"></script> +<script> +let beforeRender; +async_test(function (t) { + assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented"); + const observer = new PerformanceObserver( + t.step_func_done(function(entryList) { + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + const pathname = window.location.origin + '/element-timing/resources/circle.svg'; + checkElement(entry, pathname, 'my_poster', 'the_poster', beforeRender, + document.getElementById('the_poster')); + // Assume viewport has size at least 200, so the element is fully visible. + checkRect(entry, [0, 200, 0, 200]); + checkNaturalSize(entry, 200, 200); + }) + ); + observer.observe({entryTypes: ['element']}); + beforeRender = performance.now(); +}, "Able to observe a video's poster image."); +</script> +<style> +body { + margin: 0; +} +</style> +<video elementtiming='my_poster' id='the_poster' src='/media/test.mp4' poster='resources/circle.svg'/> |