1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-offset-01.js b/js/src/jit-test/tests/debug/Frame-offset-01.js
new file mode 100644
index 0000000000..69f7f3ae5a
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-offset-01.js
@@ -0,0 +1,11 @@
+// frame.offset throws if !frame.onStack.
+
+load(libdir + "asserts.js");
+
+var g = newGlobal({newCompartment: true});
+var dbg = Debugger(g);
+var f;
+dbg.onDebuggerStatement = function (frame) { f = frame; };
+g.eval("debugger;");
+assertEq(f.onStack, false);
+assertThrowsInstanceOf(function () { f.offset; }, Error);