Nevermind. I took a look at this problem again and I realized I had messed it up. I was just being dumb, and there is nothing wrong with the test case.

Following was done in C#:

It seems like there is an issue with a test case in the BasicTests in the submit.

✘ should ignore case
String lengths are both 14. Strings differ at index 0.
Expected: ")()))()))))()("
But was: "(()))())())()("

The info it gives says it should ignore case, which I have done and know I have done so successfully because it passes the following test that is included.

Assert.AreEqual(")())())", Kata.DuplicateEncode("Success"), "should ignore case");

So either I'm just being dumb or there is an issue with the test.