reduced some duplication in the test util class
reduced some duplication in the test util class

jdufner/fitnesse,hansjoachim/fitnesse,jdufner/fitnesse,jdufner/fitnesse,rbevers/fitnesse,rbevers/fitnesse,rbevers/fitnesse,amolenaar/fitnesse,amolenaar/fitnesse,amolenaar/fitnesse,hansjoachim/fitnesse,hansjoachim/fitnesse