Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(1848)

Unified Diff: third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-bg-color.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
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-bg-color.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-bg-color.html b/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-bg-color.html
new file mode 100644
index 0000000000000000000000000000000000000000..f81620a401fafe417eb4f8d24e9d74211e610bf6
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/performance-timing/paint-timing/first-paint-bg-color.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: FP due to background color</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) {
+ document.body.style.backgroundColor = "#AA0000";
+
+ testRunner.capturePixelsAsyncThen(t.step_func_done(function() {
+ const bufferedEntries = performance.getEntriesByType('paint');
+ assert_equals(bufferedEntries.length, 1, "FP should fire for background color, not FCP");
+ assert_equals(bufferedEntries[0].entryType, "paint");
+ assert_equals(bufferedEntries[0].name, "first-paint");
+ }));
+ }, "First paint fires due to background color. No FCP");
+ </script>
+<footer>
+</html>

Powered by Google App Engine
This is Rietveld 408576698