Write test for starts_w_r method
Fix test so it calls the method!
Add test for contains_a method
Write method to pass contains_a method test
Write test for first_wa method
Write method to pass first_wa test
Refactor first_wa
Make tests better (by testing if work on symbols) and add test for all_wa method
Base all_wa on contains_a method and pass all_wa test
Write test for only_s method
Write method to pass only_s test
Write test for third_letter method
Write method to pass third_letter test
Write count_words method test
Write count_words method to pass test
count_hash is the hardest method so far