Microsoft Word – Lab_07.docx
SM (M) 2017-2018 Lab 7: JUnit Testing
The Moodle webpage has a workspace for Lab 7. Download this an import
it into your workspace.
To create a JUnit test case, click “New” in the Eclipse Menu, and select
JUnit Test Case (Java/JUnit). This will create your basic test case (for
example, see SimpleCalcTest.java in the workspace.)
Queue
This lab will involve writing a set of test cases for a Queue class. The
description of the functional requirements is below. For each method
described below, create a test function in the workspace that gives a full
test coverage of that method. You can organize your test cases by function
or group them based on the sample data.
The run the tests, you’ll need to design the sample data and expected
results. Your test methods need to cover each of the functions below. Use
the @Before and @BeforeClass annotations to setup your sample data.
The goal of these tests will be to identify faults (and you should find
several). As you develop the test cases, try to correct these faults for a
successful set of test cases.
Queue API
This implementation of a First In First Out (FIFO) Queue is in
Queue.java. The first item you add (using enqueue) should be the first
item that is returned (using dequeue). You can see an example of this
running in QueueMain.java. It should output the following:
Queue queue = new Queue();
queue.enqueue(“Frodo”);
queue.enqueue(“Samwise”);
queue.enqueue(“Gandalf”);
queue.dequeue(); // Frodo
queue.dequeue(); // Samwise
queue.dequeue(); // Gandalf
queue.dequeue(); // No Such Element Exception
isEmpty() – Returns True if the queue is Empty, return False otherwise
size() – Returns the size of the Queue
peek() – Shows the oldest item in the Queue (the one that would be
returned by dequeue)
enqueue(Item item) – Add an item to the Queue
dequeue() – Return the oldest items from Queue
toString() – Prints to System.out.print the Queue in FIFO order.