I'm getting the same error (in Java) and am passing the test case in description. Any other hints about what this test case is looking for?

Is it possible to have better error messages? I'm doing this in clojure. The tests pass when I run them, but a test fails when I submit. I've run the code locally with a varied number of inputs and I'm not getting any problems. Would be helpful if the error message was a bit more informative.

Giacomo Sorbi has given you the answer.

No worries! I really didn't think there was anything you could do about it, but I'd thought I'd leave it here, just in case someone else is struggling with the same thing.

Thanks!

Ohk now I get it and FYI I don't own the java version. And now I can't edit the test cases because 500+ users have solve this kata so it's now uneditable :(

No, I've solved it. I'm saying that the arguments passed to the test cases are in the wrong order. The actual result your code produces is listed under the "expected" category, and the expected time is listed under the "saw" category.

So you have this:
assertEquals(NthSeries.seriesSum(5), "1.57");

When it should be:
assertEquals("1.57", NthSeries.seriesSum(5));

That's all.

This is just for marketing purposes: I have authored a Complete the pattern kata series currently not available in java but I'm going to translate them within few days...So keep a track of them and I bet you will like the series. And in the meantime you can have a look at Complete The Pattern #1 to get the taste of Complete The Pattern Series ^_^

So did you completed the kata now?? And what did you wanted me to do :-/ I can't solve the kata for you...That's your code which is producing false output. Anyways if you want some help then post your solution as a spoiler then someone might help you out ^_^

Oh, it seemed to have erased part of the error message I copied in:
When I failed the first test case, I received this message:

test1(NthSeriesTest)
expected: 1.[68] but was: 1.57

This, to me, reads that the test case was expecting 1.68, and my code was producing 1.57; however, it was the other way around: 1.68 is what my code was producing, while 1.57 was what the test case is looking for. So basically I spent a lot of time trying to figure out why my solution was producing 1.68 locally, but failing the test case online... It's just my two cents. Trying to keep others from making my mistakes.

Can you elaborate this I believe the arguments in the test cases are in the wrong order. ??

Java.

Which language are you solving in??

I believe the arguments in the test cases are in the wrong order.
test1(NthSeriesTest)
expected:<1.[68]> but was:<1.[57]>
1.68 is what my code was producing, while 1.57 was what the test case is looking for. Just so you know.

Also, from the examples, I thought the series was part of the string that was returned "1 + ... = "1.57"", so it took me a long time to figure out why I was failing test cases. Maybe you could make that part a little more clear?

Otherwise, great kata.