I am new to codewars, how can I see the unit tests used when I press "Attempt" button? (not the ones in the "Sample Tests")

EDIT:
Figured it out, just need to print out the input array in the function and it will show up in the Log of failed tests.

Here is the "testUpAndDown":

capacity = 5;
input: ({3}, {2}, {0}, {2}, {}, {}, {5})
expectedResult: {0, 1, 2, 3, 6, 5, 3, 2, 0}