1 files changed, 56 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_objectgrips-fn-apply-02.js b/devtools/server/tests/xpcshell/test_objectgrips-fn-apply-02.js
new file mode 100644
index 0000000000..743286281c
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_objectgrips-fn-apply-02.js
@@ -0,0 +1,56 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"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 arg1 = packet.frame.arguments[0];
+    Assert.equal(arg1.class, "Object");
+
+    await threadFront.pauseGrip(arg1).threadGrip();
+    const obj = arg1;
+    await threadFront.resume();
+
+    const objectFront = threadFront.pauseGrip(obj);
+
+    const method = (await objectFront.getPropertyValue("method", null)).value
+      .return;
+
+    const methodCalled = method.apply(obj, []);
+
+    // Ensure that we actually paused at the `debugger;` line.
+    const packet2 = await waitForPause(threadFront);
+    Assert.equal(packet2.frame.where.line, 4);
+    Assert.equal(packet2.frame.where.column, 8);
+
+    await threadFront.resume();
+    await methodCalled;
+  })
+);
+
+function evalCode(debuggee) {
+  debuggee.eval(
+    function stopMe(arg1) {
+      debugger;
+    }.toString()
+  );
+
+  debuggee.eval(`
+    stopMe({
+      method(){
+        debugger;
+      },
+    });
+  `);
+}