1 files changed, 69 insertions, 0 deletions
diff --git a/testing/web-platform/tests/web-locks/bfcache/sharedworker-multiple.tentative.https.html b/testing/web-platform/tests/web-locks/bfcache/sharedworker-multiple.tentative.https.html
new file mode 100644
index 0000000000..71a79bc5fa
--- /dev/null
+++ b/testing/web-platform/tests/web-locks/bfcache/sharedworker-multiple.tentative.https.html
@@ -0,0 +1,69 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<meta name="timeout" content="long">
+<title>Web Locks API: bfcache</title>
+<link rel=help href="https://w3c.github.io/web-locks/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/utils.js"></script>
+<script src="/common/dispatcher/dispatcher.js"></script>
+<script src="/html/browsers/browsing-the-web/back-forward-cache/resources/helper.sub.js"></script>
+<script>
+  const connectToSharedWorker = async () => {
+    await window.pageShowPromise;
+    window.worker = new SharedWorker("/web-locks/resources/worker.js");
+    worker.port.start();
+  }
+  function double_docs_test(func, description) {
+    promise_test(async t => {
+      const pageA1 = new RemoteContext(token());
+      const pageA2 = new RemoteContext(token());
+      const pageB1 = new RemoteContext(token());
+      const pageB2 = new RemoteContext(token());
+
+      const urlA1 = executorPath + pageA1.context_id;
+      const urlA2 = executorPath + pageA2.context_id;
+      const urlB1 = originCrossSite + executorPath + pageB1.context_id;
+      const urlB2 = originCrossSite + executorPath + pageB2.context_id;
+
+      window.open(urlA1, "_blank", "noopener");
+      window.open(urlA2, "_blank", "noopener");
+
+      await func(pageA1, pageA2);
+
+      await Promise.all([
+        navigateAndThenBack(pageA1, pageB1, urlB1),
+        navigateAndThenBack(pageA2, pageB2, urlB2),
+      ]);
+
+      await assert_not_bfcached(pageA1);
+      await assert_not_bfcached(pageA2);
+    }, description);
+  }
+
+  double_docs_test(async (pageA1, pageA2) => {
+    await Promise.all([
+      pageA1.execute_script(connectToSharedWorker),
+      pageA2.execute_script(connectToSharedWorker),
+    ]);
+    await pageA1.execute_script(async () => {
+      const script = document.createElement("script");
+      script.src = "/web-locks/resources/helpers.js";
+      document.head.append(script);
+      await new Promise(resolve => script.onload = resolve);
+      await postToWorkerAndWait(worker.port, { op: "request", name: uniqueNameByQuery() });
+    });
+  }, "A new held lock must prevent bfcache on all connected documents");
+
+  double_docs_test(async (pageA1, pageA2) => {
+    await pageA1.execute_script(connectToSharedWorker);
+    await pageA1.execute_script(async () => {
+      const script = document.createElement("script");
+      script.src = "/web-locks/resources/helpers.js";
+      document.head.append(script);
+      await new Promise(resolve => script.onload = resolve);
+      await postToWorkerAndWait(worker.port, { op: "request", name: uniqueNameByQuery() });
+    });
+    await pageA2.execute_script(connectToSharedWorker);
+  }, "An existing held lock must prevent bfcache on all connected documents");
+</script>