1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Promise/bug-1289040.js b/js/src/tests/ecma_6/Promise/bug-1289040.js
new file mode 100644
index 000000000..9290d8ad4
--- /dev/null
+++ b/js/src/tests/ecma_6/Promise/bug-1289040.js
@@ -0,0 +1,13 @@
+if (!this.Promise) {
+    this.reportCompare && reportCompare(true,true);
+    quit(0);
+}
+
+var global = newGlobal();
+Promise.prototype.then = global.Promise.prototype.then;
+p1 = new Promise(function f(r) {
+    r(1);
+});
+p2 = p1.then(function g(){});
+
+this.reportCompare && reportCompare(true,true);