Prerender: Externalize idle-detection web platform test

Bug: 1253158 Change-Id: Ide3e6e6a78c75c606ea56865d6f5d91ba66af64a Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3858725 Reviewed-by: Lingqi Chi <lingqi@chromium.org> Commit-Queue: Hyowon Kim <hyowon@igalia.com> Cr-Commit-Position: refs/heads/main@{#1039739}
web-platform-tests · Aug 26, 2022 · ad92e64 · ad92e64
1 parent 092176b
commit ad92e64
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diff --git a/speculation-rules/prerender/resources/idle-detection.https.html b/speculation-rules/prerender/resources/idle-detection.https.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/speculation-rules/prerender/resources/utils.js"></script>
+<script>
+
+assert_true(document.prerendering);
+
+const params = new URLSearchParams(location.search);
+const uid = params.get('uid');
+
+async function requestIdleDetectionPermission() {
+  const bc = new PrerenderChannel('prerender-channel', uid);
+
+  try {
+    const _ = await IdleDetector.requestPermission();
+    bc.postMessage('unexpected success');
+  } catch (err){
+    bc.postMessage(err.name);
+  } finally {
+    bc.close();
+  }
+}
+
+requestIdleDetectionPermission();
+
+</script>
diff --git a/speculation-rules/prerender/restriction-idle-detection.https.html b/speculation-rules/prerender/restriction-idle-detection.https.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>Prerendering cannot invoke the Idle Detection API</title>
+<meta name="timeout" content="long">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/utils.js"></script>
+<script src="/speculation-rules/prerender/resources/utils.js"></script>
+<body>
+<script>
+
+setup(() => assertSpeculationRulesIsSupported());
+
+promise_test(async t => {
+  const uid = token();
+  const bc = new PrerenderChannel('prerender-channel', uid);
+
+  const gotMessage = new Promise(resolve => {
+    bc.addEventListener('message', e => {
+      resolve(e.data);
+    }, {
+      once: true
+    });
+  });
+
+  // Start prerendering a page that attempts to invoke the Idle Detection API.
+  // This API is activation-gated so it's expected to fail:
+  // https://wicg.github.io/nav-speculation/prerendering.html#activation-gated
+  startPrerendering(`resources/idle-detection.https.html?uid=${uid}`);
+  const result = await gotMessage;
+  assert_equals(result, 'NotAllowedError');
+  bc.close();
+}, `prerendering pages should not be able to invoke the Idle Detection API`);
+
+</script>
+</body>