In some languages on Codewars (Python is the problem here, I think) it is possible to mutate the array that is passed as input. That will guarantee that the test will fail.
Generally it is not good to mutate the input to a function, unless that is the expected behaviour.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
In some languages on Codewars (Python is the problem here, I think) it is possible to mutate the array that is passed as input. That will guarantee that the test will fail.
Generally it is not good to mutate the input to a function, unless that is the expected behaviour.