1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/RegExp/replace-sticky-lastIndex.js b/js/src/tests/ecma_6/RegExp/replace-sticky-lastIndex.js
new file mode 100644
index 000000000..2500b2c42
--- /dev/null
+++ b/js/src/tests/ecma_6/RegExp/replace-sticky-lastIndex.js
@@ -0,0 +1,23 @@
+var BUGNUMBER = 887016;
+var summary = "String.prototype.replace should do nothing if lastIndex is invalid for sticky RegExp";
+
+print(BUGNUMBER + ": " + summary);
+
+var re = /a/y;
+re.lastIndex = -1;
+assertEq("a".replace(re, "b"), "b");
+re.lastIndex = 0;
+assertEq("a".replace(re, "b"), "b");
+re.lastIndex = 1;
+assertEq("a".replace(re, "b"), "a");
+re.lastIndex = 2;
+assertEq("a".replace(re, "b"), "a");
+re.lastIndex = "foo";
+assertEq("a".replace(re, "b"), "b");
+re.lastIndex = "1";
+assertEq("a".replace(re, "b"), "a");
+re.lastIndex = {};
+assertEq("a".replace(re, "b"), "b");
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);