1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/ShadowRealm/prototype/evaluate/wrapped-function-proxied-observes-boundary.js b/js/src/tests/test262/built-ins/ShadowRealm/prototype/evaluate/wrapped-function-proxied-observes-boundary.js
new file mode 100644
index 0000000000..aa4f03896a
--- /dev/null
+++ b/js/src/tests/test262/built-ins/ShadowRealm/prototype/evaluate/wrapped-function-proxied-observes-boundary.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-shadow-realms) skip-if(!xulRuntime.shell) -- requires shell-options
+// Copyright (C) 2021 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-shadowrealm.prototype.evaluate
+description: >
+  Proxying a wrapped function and invoking it still performs boundary checks
+features: [ShadowRealm]
+---*/
+
+assert.sameValue(
+  typeof ShadowRealm.prototype.evaluate,
+  'function',
+  'This test must fail if ShadowRealm.prototype.evaluate is not a function'
+);
+
+const r = new ShadowRealm();
+
+const wrapped = r.evaluate(`() => { return 1; };`);
+
+const secretObj = {x: 2};
+
+let received;
+
+const proxiedWrapped = new Proxy(wrapped, {
+  apply(target, _, args) {
+    assert.sameValue(target, wrapped);
+    received = args;
+
+    // Object can't be sent to the other Realm
+    return target({x: 1});
+  }
+});
+
+assert.throws(
+  TypeError,
+  () => proxiedWrapped(secretObj),
+  'Proxying a wrapped function and invoking it still performs boundary checks'
+);
+
+assert.sameValue(received[0], secretObj, 'proxy still calls the handler trap');
+assert.sameValue(received.length, 1);
+
+reportCompare(0, 0);