1 files changed, 56 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_objectgrips-05.js b/devtools/server/tests/xpcshell/test_objectgrips-05.js
new file mode 100644
index 0000000000..4c6f0f107a
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_objectgrips-05.js
@@ -0,0 +1,56 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * This test checks that frozen objects report themselves as frozen in their
+ * grip.
+ */
+
+Services.prefs.setBoolPref("security.allow_eval_with_system_principal", true);
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref("security.allow_eval_with_system_principal");
+});
+
+add_task(
+  threadFrontTest(async ({ threadFront, debuggee }) => {
+    const packet = await executeOnNextTickAndWaitForPause(
+      () => evalCode(debuggee),
+      threadFront
+    );
+
+    const obj1 = packet.frame.arguments[0];
+    Assert.ok(obj1.frozen);
+
+    const obj1Client = threadFront.pauseGrip(obj1);
+    Assert.ok(obj1Client.isFrozen);
+
+    const obj2 = packet.frame.arguments[1];
+    Assert.ok(!obj2.frozen);
+
+    const obj2Client = threadFront.pauseGrip(obj2);
+    Assert.ok(!obj2Client.isFrozen);
+
+    await threadFront.resume();
+  })
+);
+
+function evalCode(debuggee) {
+  debuggee.eval(
+    function stopMe(arg1) {
+      debugger;
+    }.toString()
+  );
+  /* eslint-disable no-undef */
+  debuggee.eval(
+    "(" +
+      function () {
+        const obj1 = {};
+        Object.freeze(obj1);
+        stopMe(obj1, {});
+      } +
+      "())"
+  );
+  /* eslint-enable no-undef */
+}