1 files changed, 12 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/six-speed/tests/map-string.es6 b/third_party/webkit/PerformanceTests/six-speed/tests/map-string.es6
new file mode 100644
index 0000000000..43b7811025
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/six-speed/tests/map-string.es6
@@ -0,0 +1,12 @@
+var map = new Map();
+
+for (var i = 0; i < 500; i++) {
+  map.set(i + '', i);
+}
+
+function fn() {
+  return map.get('499') === 499;
+}
+
+assertEqual(fn(), true);
+test(fn);