You are writing a Python function isPalindrome() that checks if a string is a palindrome, and you ask GitHub Copilot to generate unit tests using pytest. Below is the initial function and the test generated by Copilot: # palindrome.py def isPalindrome ( s ): return s == s [::- 1 ] # test_palindrome.py (Generated by Copilot) from palindrome import isPalindrome def test_is_palindrome (): assert isPalindrome ( 'racecar' ) == True Which two actions would best improve the robustness of the generated test cases and follow best testing practices? (Select two)