[ResourceTiming]: Add WPT for same-origin redirect

The spec requires that attributes of the PerformanceResourceTiming entries take on certain values when the underlying resource was fetched through an HTTP redirect. This change adds tests to validate - startTime - redirectStart - redirectEnd - fetchStart - domainLookupStart - domainLookupEnd - connectStart Bug: 1171767 Change-Id: Ia422c25aa9c6da55b318c7e21a1839359d104d82 GithubIssue: w3c/resource-timing#254 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2736074 Commit-Queue: Tom McKee <[email protected]> Reviewed-by: Yoav Weiss <[email protected]> Cr-Commit-Position: refs/heads/master@{#861551} GitOrigin-RevId: af288bf3c15b2d3d01a0bef1672ade6146ffff55
mjfroman · Mar 10, 2021 · 6f88ed6 · 6f88ed6
1 parent 44d6548
commit 6f88ed6
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/blink/web_tests/external/wpt/resource-timing/entry-attributes.html b/blink/web_tests/external/wpt/resource-timing/entry-attributes.html
@@ -93,6 +93,24 @@
   ]);
 }
 
+function assert_same_origin_redirected_resource(entry) {
+  assert_positive(entry, [
+    "redirectStart",
+  ]);
+
+  assert_equals(entry.redirectStart, entry.startTime,
+    "redirectStart should be equal to startTime");
+
+  assert_ordered(entry, [
+    "redirectStart",
+    "redirectEnd",
+    "fetchStart",
+    "domainLookupStart",
+    "domainLookupEnd",
+    "connectStart",
+  ]);
+}
+
 // Given a resource-loader and a PerformanceResourceTiming validator, loads a
 // resource and validates the resulting entry.
 function attribute_test(load_resource, validate, test_label) {
@@ -126,6 +144,10 @@
   assert_http_resource,
   "Font resources should generate conformant entries");
 
+attribute_test(
+  () => load_image("/common/redirect.py?location=resources/fake_responses.py"),
+  assert_same_origin_redirected_resource,
+  "Same-origin redirects should populate redirectStart/redirectEnd");
 </script>
 </head>
 <body>