1 files changed, 12 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-environment-02.js b/js/src/jit-test/tests/debug/Frame-environment-02.js
new file mode 100644
index 0000000000..76283711be
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-environment-02.js
@@ -0,0 +1,12 @@
+// dbg.getNewestFrame().environment works.
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger;
+var gw = dbg.addDebuggee(g);
+g.h = function () {
+    var env = dbg.getNewestFrame().environment.parent;
+    assertEq(env instanceof Debugger.Environment, true);
+    assertEq(env.object, gw);
+    assertEq(env.parent, null);
+};
+g.eval("h()");