$1.$ Project Details: Develop a string utility application with functions to manipulate and analyze strings. The application should include basic functions like reversing a string, checking for palindromes, converting to uppercase, and counting words. Write unit tests to ensure each function operates correctly. $2.$ Features to Test: Reverse String: Test a function that takes a string and returns its reverse. Verify it works for regular words, phrases, and empty strings. Palindrome Check: Test a function that checks if a string is a palindrome $($reads the same forward and backward$).$ Test with both palindromes $($like "madam"$)$ and non$-$palindromes, and handle case$-$insensitive comparisons. Convert to Uppercase: Verify a function that converts a string to uppercase. Test with mixed$-$case strings, all$-$lowercase strings, and empty strings. Word Count: Test a function that counts the number of words in a string. Verify correct counting for strings with single words, multiple words, and no words. $3.$ Testing Requirements: $$ Write separate test cases for each function. $$ Use assertions to validate the outputs against expected results. $$ Handle edge cases, such as: Empty strings. Strings with only spaces for word count. Mixed$-$case inputs for the palindrome check.