1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-sharedworker-failure.https.html b/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-sharedworker-failure.https.html
new file mode 100644
index 0000000000..023cb5acde
--- /dev/null
+++ b/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-sharedworker-failure.https.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<title>SharedArrayBuffer cannot cross agent clusters, shared worker edition</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script>
+async_test(t => {
+  const sw = new SharedWorker("resources/sharedworker-failure.js")
+  let state = ""
+  sw.port.onmessage = t.step_func(e => {
+    if(e.data === "send-sw-failure") {
+      sw.port.postMessage(new SharedArrayBuffer())
+    } else if(e.data === "send-sw-failure-success") {
+      state = "send-window-failure"
+      sw.port.postMessage(state)
+    } else {
+      assert_unreached()
+    }
+  })
+  sw.port.onmessageerror = t.step_func(e => {
+    if(state === "send-window-failure") {
+      assert_equals(e.data, null, "data")
+      assert_equals(e.origin, "", "origin")
+      assert_equals(e.source, null, "source")
+      assert_equals(e.ports.length, 0, "ports length")
+      t.done()
+    } else {
+      assert_unreached()
+    }
+  })
+})
+</script>