1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-onPop-16.js b/js/src/jit-test/tests/debug/Frame-onPop-16.js
new file mode 100644
index 0000000000..dfb765d1e7
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-onPop-16.js
@@ -0,0 +1,18 @@
+// onPop handlers fire even on frames that make tail calls.
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger(g);
+var log;
+
+g.eval('function f(n) { if (n > 0) f(n-1); else debugger; }');
+
+dbg.onEnterFrame = function handleEnter(frame) {
+    log += '(';
+    frame.onPop = function handlePop(c) {
+        log += ')';
+        assertEq(typeof c == "object" && 'return' in c, true);
+    };
+};
+
+log = '';
+g.f(10);
+assertEq(log, "((((((((((()))))))))))");