Creating a Test Harness

Question

Hi there ....
I have this problem, basically, my self and a few of my class mates have built this program as part of our module and we now need to have a Test Harness to run and log our Test Cases.
I have all the test cases arranged in .txt files and plan on using the 'Test Harness' to read test cases from these files, feed it to our program and then log the output from our programe (the methods) yet again on another .txt file. We have the feature for logging, in the formatted required.
However, non of us has built a test harness before and it looks like a complex procedure, the problem is we dont know how to approach it.
We can test methods that return a value but we dont know how to use the test harness to test void methods that pass data to components or call other methods.
I would appriciate any form of help.
Cheers

Answer 1

Hi yawmark,
I appologise for including a poor code example ealier on, i had to come up with something quick. I will however, visit the sugeted sites you mentioned, thank you.
I did however, create a simple class that compiles and can be used to set, return, reset and print a few details about a person. I hope that is of better use than my previous example. here it is:
public class SimplePerson {
    int age = 0;
    String firstName = "";
    String lastName = "";
    /** Creates a new instance of SimplePerson */
    public SimplePerson() {
    /** Sets the age of this person */
    private void setAge(int takeAge){
        age = takeAge;
    /** Returns the age of this person */
    private int getAge(){
        return age;
    /** Sets the First Name of this person */
    private void setFirstName(String takeName){
        firstName = takeName;
    /** Returns the First Name of this person */
    private String getFirstName(){
        return firstName;
    /** Sets the Last Name of this person */
    private void setLastName(String takeName){
        firstName = takeName;
    /** Returns the Last Name of this person */
    private String getLastName(){
        return firstName;
    /** Resets the details of this person back to back to
     *  the default form.
    private void resetAll(){
        age = 0;
        firstName = "";
        lastName = "";
    /** Prints all the details this person has */
    private void printAll(){
        System.out.println("Age: " +Integer.toString(age)
                + "\n First Name: " + firstName
                + "\n Last Name: " + lastName );
}Cheers mate