1 files changed, 45 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_objectgrips-23.js b/devtools/server/tests/xpcshell/test_objectgrips-23.js
new file mode 100644
index 0000000000..b44beb2c2d
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_objectgrips-23.js
@@ -0,0 +1,45 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that ES6 classes grip have the expected properties.
+
+"use strict";
+
+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 [grip] = packet.frame.arguments;
+    strictEqual(
+      grip.class,
+      "Function",
+      `Grip has expected value for "class" property`
+    );
+    strictEqual(
+      grip.isClassConstructor,
+      true,
+      `Grip has expected value for "isClassConstructor" property`
+    );
+
+    await threadFront.resume();
+  })
+);
+
+function evalCode(debuggee) {
+  debuggee.eval(`
+    class MyClass {};
+    stopMe(MyClass);
+
+    function stopMe(arg1) {
+      debugger;
+    }
+  `);
+}