1 files changed, 126 insertions, 0 deletions
diff --git a/js/src/tests/non262/String/replace-throws-nonwritable-lastIndex-global.js b/js/src/tests/non262/String/replace-throws-nonwritable-lastIndex-global.js
new file mode 100644
index 0000000000..8e1c967f12
--- /dev/null
+++ b/js/src/tests/non262/String/replace-throws-nonwritable-lastIndex-global.js
@@ -0,0 +1,126 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var BUGNUMBER = 501739;
+var summary =
+  "String.prototype.replace should throw when called with a global RegExp " +
+  "whose .lastIndex is non-writable";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var s = '0x2x4x6x8';
+
+// First time with .lastIndex === 0, replacing to ''
+
+var p1 = /x/g;
+Object.defineProperty(p1, "lastIndex", { writable: false });
+
+try
+{
+  s.replace(p1, '');
+  throw "didn't throw";
+}
+catch (e)
+{
+  assertEq(e instanceof TypeError, true,
+           "should have thrown a TypeError, instead got: " + e);
+  assertEq(p1.lastIndex, 0);
+}
+
+// Second time with .lastIndex !== 0, replacing to ''
+
+var p2 = /x/g;
+Object.defineProperty(p2, "lastIndex", { writable: false, value: 3 });
+
+try
+{
+  s.replace(p2, '');
+  throw "didn't throw";
+}
+catch (e)
+{
+  assertEq(e instanceof TypeError, true,
+           "should have thrown a TypeError, instead got: " + e);
+  assertEq(p2.lastIndex, 3);
+}
+
+// Third time with .lastIndex === 0, replacing to 'y'
+
+var p3 = /x/g;
+Object.defineProperty(p3, "lastIndex", { writable: false });
+
+try
+{
+  s.replace(p3, 'y');
+  throw "didn't throw";
+}
+catch (e)
+{
+  assertEq(e instanceof TypeError, true,
+           "should have thrown a TypeError, instead got: " + e);
+  assertEq(p3.lastIndex, 0);
+}
+
+// Fourth time with .lastIndex !== 0, replacing to 'y'
+
+var p4 = /x/g;
+Object.defineProperty(p4, "lastIndex", { writable: false, value: 3 });
+
+try
+{
+  s.replace(p4, '');
+  throw "didn't throw";
+}
+catch (e)
+{
+  assertEq(e instanceof TypeError, true,
+           "should have thrown a TypeError, instead got: " + e);
+  assertEq(p4.lastIndex, 3);
+}
+
+// Fifth time with .lastIndex === 0, replacing to 'y', but no match
+
+var p5 = /q/g;
+Object.defineProperty(p5, "lastIndex", { writable: false });
+
+try
+{
+  s.replace(p5, 'y');
+  throw "didn't throw";
+}
+catch (e)
+{
+  assertEq(e instanceof TypeError, true,
+           "should have thrown a TypeError, instead got: " + e);
+  assertEq(p5.lastIndex, 0);
+}
+
+// Sixth time with .lastIndex !== 0, replacing to 'y', but no match
+
+var p6 = /q/g;
+Object.defineProperty(p6, "lastIndex", { writable: false, value: 3 });
+
+try
+{
+  s.replace(p6, '');
+  throw "didn't throw";
+}
+catch (e)
+{
+  assertEq(e instanceof TypeError, true,
+           "should have thrown a TypeError, instead got: " + e);
+  assertEq(p6.lastIndex, 3);
+}
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("Tests complete");