Chromium Code Reviews| 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..3f1fcbda5900ce997a58d91ab6fec63f04afb760 |
| --- /dev/null |
| +++ b/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-contentful-bg-image.html |
| @@ -0,0 +1,27 @@ |
| +<!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) { |
| + let body = document.getElementsByTagName('body')[0]; |
|
tdresser
2017/06/12 14:44:45
const
|
| + body.style.backgroundImage = 'url(resources/circles.png)'; |
| + |
| + 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> |