user error

And you used eclipse to run the same tests? When you print out your returned values and compare them to the correct values (with eclipse) are they the same?

I can see at least one bug in your code. Have you looked at the tests and gone throught them in your head, following your code?

I can straight-up give you the answer if you'd prefer. But I thought I'd give you a chance to figure it out first.

If you still think this is an issue, please let us know what the issue is.

Looks like you're outputting incorrect strings. I don't think this is an issue with the tests. You can use print out things, and use the test failure messages to fgure out what's going wrong in your code.