third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-only.html - Issue 2932593002: Attempt 2: Update PaintTiming Web Perf APIs for FP & FCP to report swap time

Unified Diff: third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-only.html

Issue 2932593002: Attempt 2: Update PaintTiming Web Perf APIs for FP & FCP to report swap time (Closed)

Patch Set: rebase to head Created 3 years, 6 months ago

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Index: third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-only.html

diff --git a/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-only.html b/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-only.html

index c427faa03843fa456b56eb75465f05638f377ad9..5b04b243ae0c375234f09e80df03d37066321c82 100644

--- a/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-only.html

+++ b/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-only.html

@@ -1,34 +1,28 @@

<!DOCTYPE html>

<head>

-<title>Performance Paint Timing Test</title>

+<title>Performance Paint Timing Test: FP only</title>

</head>

<body>

- <script>

+ <div id="main"></div>

+ <script>

async_test(function (t) {

- var observer = new PerformanceObserver(

- t.step_func(function (entryList) {

- var entries = entryList.getEntries();

- // Nothing contentful to be painted yet.

- assert_equals(entries.length, 1,

- "There should be only first paint timing instance.");

- assert_equals(entries[0].entryType, "paint",

- "Expected entryType to be: paint.");

- assert_equals(entries[0].name, "first-paint",

- "Expected name to be: first-paint.");

- assert_equals(entries[0].duration, 0,

- "Expected duration to be: 0.");

- observer.disconnect();

- })

- );

- observer.observe({entryTypes: ["paint"]});

+ 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);

- t.step_timeout(function() { t.done(); }, 1000);

- }, "Performance first paint timing entry is observable. No first contentful paint.");

+ testRunner.capturePixelsAsyncThen(t.step_func_done(function() {

+ const bufferedEntries = performance.getEntriesByType('paint');

+ assert_equals(bufferedEntries.length, 1, "FP only.");

+ assert_equals(bufferedEntries[0].entryType, "paint");

+ assert_equals(bufferedEntries[0].name, "first-paint");

+ }));

+ }, "Performance first paint timing entry exists. No first contentful paint.");

</script>

- <div style="background-color:black;color:white;padding:20px;"></div>

</body>

</html>