(plan 4) (expect "length of string" (= (length "hello") 5)) (expect "string-upcase" (string= (string-upcase "helLo") "HELLO")) (expect "string-downcase" (string= (string-downcase "HEllO") "hello")) (expect "string-capitalize" (string= (string-capitalize "hello world i like cheese") "Hello World I Like Cheese"))