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Diffstat (limited to '')
-rw-r--r-- | testing/web-platform/tests/paint-timing/with-first-paint/basetest.html | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/basetest.html b/testing/web-platform/tests/paint-timing/with-first-paint/basetest.html new file mode 100644 index 0000000000..759dfaa97a --- /dev/null +++ b/testing/web-platform/tests/paint-timing/with-first-paint/basetest.html @@ -0,0 +1,48 @@ +<!DOCTYPE html> +<head> +<title>Performance Paint Timing Test</title> +</head> +<body> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<div id="main"></div> + +<script> +setup({"hide_test_state": true}); +async_test(function(t) { + assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported."); + t.step(function() { + 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"; + div.innerHTML = "test" + document.getElementById("main").appendChild(div); + function testPaintEntries() { + const bufferedEntries = performance.getEntriesByType('paint'); + if (bufferedEntries.length < 2) { + t.step_timeout(function() { + testPaintEntries(); + }, 20); + return; + } + t.step(function() { + assert_equals(bufferedEntries.length, 2, "FP and FCP."); + assert_equals(bufferedEntries[0].entryType, "paint"); + assert_equals(bufferedEntries[0].name, "first-paint"); + assert_equals(bufferedEntries[1].entryType, "paint"); + assert_equals(bufferedEntries[1].name, "first-contentful-paint"); + t.done(); + }); + } + t.step(function() { + testPaintEntries(); + }); +}, "Basic test to check existence of FP and FCP."); +</script> +</body> +</html> |