diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-paint.html | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-paint.html')
| -rw-r--r-- | testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-paint.html | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-paint.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-paint.html new file mode 100644 index 0000000000..7d23155b0d --- /dev/null +++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-paint.html @@ -0,0 +1,76 @@ +<!DOCTYPE html> +<head> +<title>Performance Paint Timing Test: FP followed by FCP</title> +</head> +<body> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<div id="main"></div> +<div id="image"></div> + +<script> +setup({"hide_test_state": true}); +async_test(function (t) { + assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported."); + const bufferedEntries = performance.getEntriesByType('paint'); + assert_equals(bufferedEntries.length, 0, "No paint entries yet"); + const div = document.createElement("div"); + div.style.width = "100px"; + div.style.height = "100px"; + div.style.backgroundColor = "red"; + div.style.color = "blue"; + document.getElementById("main").appendChild(div); + function testPaintEntries() { + const bufferedEntries = performance.getEntriesByType('paint'); + if (bufferedEntries.length < 1) { + t.step_timeout(function() { + testPaintEntries(); + }, 20); + return; + } + t.step(function() { + assert_equals(bufferedEntries.length, 1, "FP only."); + assert_equals(bufferedEntries[0].entryType, "paint"); + assert_equals(bufferedEntries[0].name, "first-paint"); + }); + const img = document.createElement("IMG"); + img.src = "../resources/circles.png"; + img.onload = function() { + function secondTestPaintEntries() { + const moreBufferedEntries = performance.getEntriesByType('paint'); + if (moreBufferedEntries.length < 2) { + t.step_timeout(function() { + secondTestPaintEntries(); + }, 20); + return; + } + t.step(function() { + assert_equals(moreBufferedEntries.length, 2, "FP and FCP."); + assert_equals(moreBufferedEntries[0].entryType, "paint"); + assert_equals(moreBufferedEntries[0].name, "first-paint"); + const fpEntriesGotByName = + performance.getEntriesByName('first-paint'); + assert_equals(fpEntriesGotByName.length, 1); + assert_equals(moreBufferedEntries[0], fpEntriesGotByName[0]); + assert_equals(moreBufferedEntries[1].entryType, "paint"); + assert_equals(moreBufferedEntries[1].name, "first-contentful-paint"); + const fcpEntriesGotByName = + performance.getEntriesByName('first-contentful-paint'); + assert_equals(fcpEntriesGotByName.length, 1); + assert_equals(moreBufferedEntries[1], fcpEntriesGotByName[0]); + t.done(); + }); + } + t.step(function() { + secondTestPaintEntries(); + }); + }; + document.getElementById('image').appendChild(img); + } + t.step(function() { + testPaintEntries(); + }); +}, "First Paint triggered by non-contentful paint. Image load triggers First Contentful Paint."); +</script> +</body> +</html> |