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Unified Diff: third_party/WebKit/LayoutTests/http/tests/serviceworker/immutable-prototype-serviceworker.html

Issue 2452073002: Freeze global prototype chain per WebIDL (Closed)
Patch Set: Test improvements Created 4 years, 1 month ago
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Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/immutable-prototype-serviceworker.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/immutable-prototype-serviceworker.html b/third_party/WebKit/LayoutTests/http/tests/serviceworker/immutable-prototype-serviceworker.html
new file mode 100644
index 0000000000000000000000000000000000000000..d7b7f6216cb2f585be866f884a896222c6c570da
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/serviceworker/immutable-prototype-serviceworker.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+<script src="../resources/testharness.js"></script>
+<script src="../resources/testharnessreport.js"></script>
+<script>
+'use strict';
+
+let expected = ['immutable', 'immutable', 'immutable', 'immutable', 'immutable'];
+
+promise_test(t =>
+ navigator.serviceWorker.register('resources/immutable-prototype-serviceworker.js', {scope: './resources/'})
+ .then(registration => {
+ let worker = registration.installing || registration.waiting || registration.active;
+ let channel = new MessageChannel()
+ worker.postMessage(channel.port2, [channel.port2]);
+ let resolve;
+ let promise = new Promise(r => resolve = r);
+ channel.port1.onmessage = resolve;
+ return promise.then(result => assert_array_equals(expected, result.data));
+ }),
+'worker prototype chain should be immutable');
+</script>
+</html>

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