Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/navigation-preload/chromium/navigation-preload-after-gc.html |
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/navigation-preload/chromium/navigation-preload-after-gc.html b/third_party/WebKit/LayoutTests/http/tests/serviceworker/navigation-preload/chromium/navigation-preload-after-gc.html |
new file mode 100644 |
index 0000000000000000000000000000000000000000..1fcf46498ee2636f4ff5fcd238d27b7dc386901a |
--- /dev/null |
+++ b/third_party/WebKit/LayoutTests/http/tests/serviceworker/navigation-preload/chromium/navigation-preload-after-gc.html |
@@ -0,0 +1,40 @@ |
+<!DOCTYPE html> |
+<meta charset="utf-8"> |
+<title>FetchEvent with Navigation Preload after GC shouldn't cause crash</title> |
+<script src="../../../resources/testharness.js"></script> |
+<script src="../../../resources/testharnessreport.js"></script> |
+<script src="../../resources/test-helpers.js"></script> |
+<script> |
+ |
+// This test simulate the flowing situation: |
falken
2017/03/23 06:19:01
nit: "simulates", "following"
horo
2017/03/23 06:46:39
Done.
|
+// 1. The browser process sends the navigation preload request to the server. |
+// 2. In SW's FetchEvent handler: |
+// 2.1 Executes GC with internals.collectGarbage(). |
+// 2.2 Returns a dummy response "hello". |
+// 3. The server sleeps 100 ms. So the browser process cancels the navigation |
+// preload request when it recieves the response from the SW. |
+// 4. Retry 1, 2 and 3 again. |
+// Before https://crbug.com/702527#c9, |m_pendingPreloadFetchEvents| of |
+// ServiceWorkerGlobalScopeProxy is accidentally cleared in the GC. So the SW |
+// crashed when it receives the fetch event with preload request again in step 4 |
+// while inserting the fetch into |m_pendingPreloadFetchEvents|. |
+promise_test(t => { |
+ var script = 'resources/navigation-preload-after-gc-worker.js'; |
+ var scope = 'resources/navigation-preload-after-gc-scope.php'; |
+ return service_worker_unregister_and_register(t, script, scope) |
+ .then(registration => { |
+ add_completion_callback(_ => registration.unregister()); |
+ var worker = registration.installing; |
+ return wait_for_state(t, worker, 'activated'); |
+ }) |
+ .then(_ => with_iframe(scope)) |
+ .then(frame => { |
+ assert_equals(frame.contentWindow.document.body.innerText, 'hello'); |
+ }) |
+ .then(_ => with_iframe(scope)) |
+ .then(frame => { |
+ assert_equals(frame.contentWindow.document.body.innerText, 'hello'); |
+ }); |
+ }, 'Navigation Preload is not counted if not enabled.'); |
+ |
+</script> |