thanks, my mistake

5 * 5 * 5 = 125 and 1^3+2^3+3^3+4^3 = 100 so, the expected result is ok, the tests are consistent.

How come in the description this function is expected to return 100 when passed (0,4):

  cubeSum(0,4); // => 1^3+2^3+3^3+4^3 = 100;

... but when tested to return 225 (only 5^3) when passed (0,5)?

  Test.assertEquals(cubeSum(5, 0), 225, "cubeSum(5,0)");

I'm either getting it wrong or the task is inconsistent with the test :) Thanks!