1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Debugger-onNewPromise-04.js b/js/src/jit-test/tests/debug/Debugger-onNewPromise-04.js
new file mode 100644
index 000000000..410a0add9
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Debugger-onNewPromise-04.js
@@ -0,0 +1,17 @@
+// An onNewPromise handler can disable itself.
+if (!('Promise' in this))
+    quit(0);
+
+var g = newGlobal();
+var dbg = new Debugger(g);
+var log;
+
+dbg.onNewPromise = function (promise) {
+  log += 'n';
+  dbg.onNewPromise = undefined;
+};
+
+log = '';
+new g.Promise(function (){});
+new g.Promise(function (){});
+assertEq(log, 'n');