1 files changed, 47 insertions, 0 deletions
diff --git a/testing/web-platform/tests/speculation-rules/prerender/state-and-event.html b/testing/web-platform/tests/speculation-rules/prerender/state-and-event.html
new file mode 100644
index 0000000000..7e8e7fd0a9
--- /dev/null
+++ b/testing/web-platform/tests/speculation-rules/prerender/state-and-event.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<meta name="timeout" content="long">
+<script src="/common/utils.js"></script>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/utils.js"></script>
+<script src="resources/utils.js"></script>
+
+<body>
+<script>
+setup(() => assertSpeculationRulesIsSupported());
+
+promise_test(async t => {
+  // The key used for storing a test result in the server.
+  const key = token();
+
+  // Open the test runner in a popup - it will prerender itself, record the
+  // test results, and send them back to this harness.
+  const url = `resources/prerender-state.html?key=${key}`;
+  window.open(url, '_blank', 'noopener');
+
+  // Wait until the test sends us the results.
+  let result = await nextValueFromServer(key);
+  result = JSON.parse(result);
+
+  assert_equals(result.prerenderingTypeOf, "boolean",
+                "typeof(document.prerendering) is 'boolean'.");
+  assert_equals(result.onprerenderingChangeTypeOf, "object",
+                "typeof(document.onprerenderingchange) is 'object'.");
+
+  assert_equals(
+    result.onprerenderingchangeCalledBeforeActivate, false,
+    "prerenderingchange event should not be called prior to activation.");
+  assert_equals(
+    result.prerenderingValueBeforeActivate, true,
+    "document.prerendering should be true prior to activation.");
+
+  assert_equals(result.onprerenderingchangeCalledAfterActivate, true,
+                "prerenderingchange event should be called after activation.");
+  assert_equals(result.prerenderingValueAfterActivate, false,
+                "document.prerendering should be false after activation.");
+  assert_equals(result.eventBubbles, false,
+                "prerenderingchange event.bubbles should be false.");
+  assert_equals(result.eventCancelable, false,
+                "prerenderingchange event.cancelable should be false.");
+}, 'Test document.prerendering and its change event.');
+</script>