Asst: Unit Testing

This assignment will give you practice in writing unit tests in the *Unit style. For this assignent you will be working with some very old code that I developed for my CS330 Object-Orietned Programming class. The code implements a spreadsheet and illustrates OO design principles, multi-threaded GUIs, and the MVC pattern of UI design.

You may either choose to work in Java or C++. Both versions of the spreadsheet separate the core spreadsheet functionality (the mode) from the UI (view and control). The C++ version of the spreadsheet actually has two separate user interfaces. One is pure C++, using the Unix curses library to do a pure text-only interface. The other demonstrates the design of a Java/C++ hybrid, using a Java program to provide a GUI that interfaces with the C++ spreadsheet code.

1. From the ~zeil/courses/cs795SD/assts directory, get either javaSpreadsheet.zip or cppSpreadsheet.zip. Unpack into a convenient working directory. Create an Eclipse project using that directory. Demonstrate for yourself that you can build and run the spreadsheet.
   • You may find some naming conflicts among the Java files. These are most likely caused the presence, in the Model directory, of both actual implementations of some ADTs and of stubs that i created for testing purposes. The model directory includes some old test drivers that I had produced. You might look at these for suggestions, but keep in mind that these test drivers predate the availability of *Unit packages and are, in many cases, not self-checking.
   • The C++ version includes makefiles. You can use these as a guide for how to set up your Eclipse project settings. You may get some error messages about duplicate main functions. These will stem from the presence of some test drivers that I had produced. You might look at these for suggestions, but keep in mind that these test drivers predate the availability of *Unit packages and are, in many cases, not self-checking.
2. Create a unit test for one (or more, if you are feeling ambitious) of the following components of the spreadsheet model:
   • The Expression class hierarchy, including printing and evaluating expressions
   • The Expression parser.
   • The Spreadsheet class

   If you are working with C++, you may use either the Google or Boost test frameworks. If you are working with Java, use JUnit 4.

   For the best score on this assignment, use mock classes to isolate the class under test from the larger subsystems within the model (to my mind, the major subsystems are the Value class hierarchy, the Expression class hierarchy, the parser, and the Spreadsheet/Cell structures).

3. Submit your unit tests using the button below.