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.

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?

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! ;))