Try the TDD approach:

Test.assertEquals(beeramid(1, 1), 1);
Test.assertEquals(beeramid(2, 1), 1);
Test.assertEquals(beeramid(4, 1), 1);
Test.assertEquals(beeramid(5, 1), 2);
// ...

Added sample tests

No worries. I just look to see if all the code in that box is greyed out. If so, there's no actual test cases. You can still put in your own, though; that's kind of the intended use.

Ah, I see now. I guess I'm just used to Katas having built-in test cases. Thanks.

There aren't any tests I've put into the "your test cases" section, so nothing will run there unless you put your own tests in there. Maybe there was just an issue with your tests?

Very weird, the "run tests" button didn't work. But the "submit" button works fine.

Seems to run fine and pass everything for me. What do you mean by the "original test"?

It seems your code modifies the inputed array (array) :

  //...
  var arr = array; // <-- for now `arr` IS `array`  ...
  //...
  arr.reverse();   // <-- ...so, here `array` is reversed too

Your code works fine on repl.it because you test only 1 rotation (rotate(data, 2)), add another rotation before yours . . . :

var data = [1, 2, 3, 4, 5];
rotate(data, 1) // <-- 1st rotation test (which should be right)
rotate(data, 2) // <-- tadaaa ; [ 2, 1, 5, 4, 3 ] instead of [ 4, 5, 1, 2, 3 ] !

Hope it helps! ;))

I'm getting this error:

Expected: [4,5,1,2,3], instead got: [2,1,5,4,3]

I have no idea why, everything works correctly from what I can tell. This is my code: https://repl.it/CYOf

When running my tests for JS I got

Solution
should test for something
Expected: expected, instead got: actual

But it worked fine when I submitted it.