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| 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/long-animation-frame/tentative/loaf-blocking-duration.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/long-animation-frame/tentative/loaf-blocking-duration.html')
| -rw-r--r-- | testing/web-platform/tests/long-animation-frame/tentative/loaf-blocking-duration.html | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/testing/web-platform/tests/long-animation-frame/tentative/loaf-blocking-duration.html b/testing/web-platform/tests/long-animation-frame/tentative/loaf-blocking-duration.html new file mode 100644 index 0000000000..1671a386ac --- /dev/null +++ b/testing/web-platform/tests/long-animation-frame/tentative/loaf-blocking-duration.html @@ -0,0 +1,64 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Long Animation Frame Timing: basic</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/utils.js"></script> + +<body> +<h1>Long Animation Frame: blocking duration</h1> +<div id="log"></div> +<script> + +function loaf_blocking_duration_test(run, label) { + const OVERHEAD_EPSILON = 5; + const BLOCKING_THRESHOLD = 50; + promise_test(async t => { + let found = false; + for (let i = 0; i < 10 && !found; ++i) { + const longtask_promise = new Promise(resolve => new PerformanceObserver( + (entries, observer) => { + resolve(entries.getEntries()); + observer.disconnect(); + }).observe({entryTypes: ["longtask"]})); + const [longtask_entries, loaf_entry] = await Promise.all( + [longtask_promise, expect_long_frame(run, t)]); + const overlapping = longtask_entries.filter(longtask => + (longtask.startTime >= loaf_entry.startTime && + longtask.startTime < (loaf_entry.startTime + loaf_entry.duration) && + (!loaf_entry.renderStart || + (longtask.startTime < loaf_entry.renderStart - OVERHEAD_EPSILON)))); + + const longest_index = overlapping.reduce( + (max, cur, i) => cur > overlapping[max] ? i : max, 0); + let expected_blocking_duration = 0; + overlapping.forEach(({duration}, i) => { + if (i === longest_index && loaf_entry.renderStart) + duration += loaf_entry.startTime + loaf_entry.duration - + loaf_entry.renderStart; + expected_blocking_duration += Math.max(0, duration - BLOCKING_THRESHOLD); + }); + + if (!overlapping.length && loaf_entry.renderStart) { + expected_blocking_duration = + Math.max(0, + loaf_entry.startTime + loaf_entry.duration - loaf_entry.renderStart - + BLOCKING_THRESHOLD); + } + + if (Math.abs(loaf_entry.blockingDuration - expected_blocking_duration) < + OVERHEAD_EPSILON) { + found = true; + } + } + assert_true(found); + }, `LoAF blockingDuration should be equivalent to long tasks: ${label}`); +} + +loaf_blocking_duration_test(t => t.step_timeout(busy_wait), "Non-rendering"); +loaf_blocking_duration_test(t => t.step_timeout(() => { + busy_wait(); + requestAnimationFrame(busy_wait); +}), "Rendering"); +</script> +</body> |