1 files changed, 8 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testObjectToString.js b/js/src/jit-test/tests/basic/testObjectToString.js
new file mode 100644
index 0000000000..ba47d00f0b
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testObjectToString.js
@@ -0,0 +1,8 @@
+function testObjectToString() {
+    var o = {toString: () => "foo"};
+    var s = "";
+    for (var i = 0; i < 10; i++)
+        s += o;
+    return s;
+}
+assertEq(testObjectToString(), "foofoofoofoofoofoofoofoofoofoo");