1 files changed, 28 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/serialization-via-notifications-api.any.js b/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/serialization-via-notifications-api.any.js
new file mode 100644
index 0000000000..4c1c1fdabb
--- /dev/null
+++ b/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/serialization-via-notifications-api.any.js
@@ -0,0 +1,28 @@
+"use strict";
+
+test(() => {
+  assert_throws_dom("DataCloneError", () => {
+    // See https://github.com/whatwg/html/issues/5380 for why not `new SharedArrayBuffer()`
+    const sab = new WebAssembly.Memory({ shared:true, initial:1, maximum:1 }).buffer;
+    new Notification("Bob: Hi", { data: sab });
+  })
+}, "SharedArrayBuffer cloning via the Notifications API's data member: basic case");
+
+test(() => {
+  // See https://github.com/whatwg/html/issues/5380 for why not `new SharedArrayBuffer()`
+  const sab = new WebAssembly.Memory({ shared:true, initial:1, maximum:1 }).buffer;
+
+  let getter1Called = false;
+  let getter2Called = false;
+
+  assert_throws_dom("DataCloneError", () => {
+    new Notification("Bob: Hi", { data: [
+      { get x() { getter1Called = true; return 5; } },
+      sab,
+      { get x() { getter2Called = true; return 5; } }
+    ]});
+  });
+
+  assert_true(getter1Called, "The getter before the SAB must have been called");
+  assert_false(getter2Called, "The getter after the SAB must not have been called");
+}, "SharedArrayBuffer cloning via the Notifications API's data member: is interleaved correctly");