1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/latin1/bug1033113.js b/js/src/jit-test/tests/latin1/bug1033113.js
new file mode 100644
index 0000000000..74f1ff53f2
--- /dev/null
+++ b/js/src/jit-test/tests/latin1/bug1033113.js
@@ -0,0 +1,20 @@
+var s = "aaaaaaaaaaaaaaaaaa111aaaa";
+var latin1Rope1 = "foo" + s;
+var latin1Rope2 = "bar" + latin1Rope1;
+var twoByteRope = "\u1200--" + latin1Rope1;
+
+// Flatten twoByteRope.
+assertEq(twoByteRope.lastIndexOf("11"), 25);
+
+// latin1Rope1 is now a TwoByte dependent string.
+assertEq(isLatin1(latin1Rope1), false);
+assertEq(latin1Rope1, "fooaaaaaaaaaaaaaaaaaa111aaaa");
+
+// latin1Rope2 should still be Latin1, but now has a
+// TwoByte descendent (latin1Rope1).
+if (isLatin1(s))
+    assertEq(isLatin1(latin1Rope2), true);
+
+// Flatten latin1Rope2.
+assertEq(latin1Rope2.lastIndexOf("11"), 25);
+assertEq(latin1Rope2, "barfooaaaaaaaaaaaaaaaaaa111aaaa");