Lab: Testing with JUnit in JGrasp


Name:                              Email:                   JAC#:


Part 1. Creating A JUnit Test Class

1.4. 
   Take a minute to look over AccountTest.java. What do you think will
   happen when this class is executed?







1.5. 
   Compile and run AccountTest.java using the new JUnit-specific
   buttons. What happened?







1.6. 
   Now remove @Test from before the defaultTest method, and run
   AccountTest.java again. What happened?







Part 3. Testing isEligibleForCharge

3.1.
   
   Ultimately, each of the non-trivial methods of the Account class
   will need to be tested. In today's lab, We will start small by
   coding some tests for the isEligibleForCharge method. Take a minute
   to carefully read the JavaDocs for that method to ensure that you
   understand its expected behavior. Then consider each of the
   following situations and determine the correct output of
   isEligibleForCharge for each one.

    *A newly created account.

    *An open account with $500.01 in purchases.

    *An open account with $500.00 in purchases.

    *An open account with $499.99 in purchases.

    *A closed account with total purchases above $500.00.

    *A closed account with total purchases below $500.00.

    *An account that once had a purchase total above $500.00, but now
     has a purchase total below $500.00 as a result of returns.


3.2.
   Write JUnit test methods covering each of the situations described
   above.  (Include your code here.)








Part 4. Testing an Alternate Implementation of Account

4.2. 
   Re-execute the JUnit tests that you wrote above. What happens? 








4.3.

   Without being able to look at the source, what errors do you think
   were made by the programmer of this version of the Account.java
   class?