| Index: third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-contentful-bg-image.html
|
| diff --git a/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-contentful-bg-image.html b/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-contentful-bg-image.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..01f8917a3ddc060af9c0a526f1c2ee9253c7445e
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-contentful-bg-image.html
|
| @@ -0,0 +1,28 @@
|
| +<!DOCTYPE html>
|
| +<head>
|
| +<title>Performance Paint Timing Test: FCP due to background image</title>
|
| +</head>
|
| +<body>
|
| + <script src="../../resources/testharness.js"></script>
|
| + <script src="../../resources/testharnessreport.js"></script>
|
| + <div id="main"></div>
|
| +</body>
|
| +<footer>
|
| + <script>
|
| + async_test(function (t) {
|
| + const body = document.getElementsByTagName('body')[0];
|
| + body.style.backgroundImage = 'url(resources/circles.png)';
|
| + window.onload = function() {
|
| + testRunner.capturePixelsAsyncThen(t.step_func_done(function() {
|
| + const bufferedEntries = performance.getEntriesByType('paint');
|
| + assert_equals(bufferedEntries.length, 2, "There should be two paint timing instances.");
|
| + 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");
|
| + }));
|
| + };
|
| + }, "First contentful paint fires due to background image render.");
|
| + </script>
|
| +<footer>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 2932593002:
Attempt 2: Update PaintTiming Web Perf APIs for FP & FCP to report swap time (Closed)
