1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-onStep-resumption-03.js b/js/src/jit-test/tests/debug/Frame-onStep-resumption-03.js
new file mode 100644
index 000000000..d2ee163ee
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-onStep-resumption-03.js
@@ -0,0 +1,19 @@
+// If frame.onStep returns null, the debuggee terminates.
+
+var g = newGlobal();
+g.eval("function h() { debugger; }");
+
+var dbg = Debugger(g);
+var hits = 0;
+dbg.onDebuggerStatement = function (frame) {
+    hits++;
+    if (hits == 1) {
+        var rv = frame.eval("h();\n" +
+                            "throw 'fail';\n");
+        assertEq(rv, null);
+    } else {
+        frame.older.onStep = function () { return null; };
+    }
+};
+g.h();
+assertEq(hits, 2);