diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
| commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
| tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /testing/web-platform/tests/layout-instability/toJSON.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip | |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/layout-instability/toJSON.html')
| -rw-r--r-- | testing/web-platform/tests/layout-instability/toJSON.html | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/testing/web-platform/tests/layout-instability/toJSON.html b/testing/web-platform/tests/layout-instability/toJSON.html new file mode 100644 index 0000000000..83ee9c968e --- /dev/null +++ b/testing/web-platform/tests/layout-instability/toJSON.html @@ -0,0 +1,48 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Layout Instability: toJSON</title> +<body> +<style> +#myDiv { position: relative; width: 300px; height: 100px; background: blue; } +</style> +<div id='myDiv'></div> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/util.js"></script> +<script> +promise_test(async t => { + assert_implements(window.LayoutShift, 'Layout Instability is not supported.'); + // Wait for the initial render to complete. + await waitForAnimationFrames(2); + + return new Promise(resolve => { + const observer = new PerformanceObserver( + t.step_func(entryList => { + const entry = entryList.getEntries()[0]; + assert_equals(typeof(entry.toJSON), 'function'); + const json = entry.toJSON(); + assert_equals(typeof(json), 'object'); + const keys = [ + // PerformanceEntry + 'name', + 'entryType', + 'startTime', + 'duration', + // LayoutShift + 'value', + 'hadRecentInput', + 'lastInputTime', + ]; + for (const key of keys) { + assert_equals(json[key], entry[key], + `LayoutShift ${key} entry does not match its toJSON value`); + } + resolve(); + }) + ); + observer.observe({type: 'layout-shift'}); + document.getElementById('myDiv').style = "top: 60px"; + }); +}, 'Test toJSON() in LayoutShift.'); +</script> +</body> |