CSE 70, Fall 2008

Software Engineering

Lab 6 Instructions

Measure your test coverage.

EclEmma is an Eclipse plugin that does coverage checking. Follow these directions to install and use it:

1. Install the plugin.
   1. In Eclipse's Help menu, select Software Updates -> Find and Install...
   2. In the Install/Update dialog, select Search for new features to install and hit Next.
   3. Hit New Remote Site and enter the name "EclEmma" and the URL http://update.eclemma.org/. Hit OK, then Finish.
   4. Check the box next to the plugin name and hit Next.
   5. Select I accept the terms in the license agreement and hit Next, then Finish.
   6. Hit Install, then restart Eclipse.
2. Use the plugin.
   1. In the Window menu, select Show View -> Other..., then select Java -> Coverage and hit OK.
   2. In the Java view, notice the Coverage tab in the bottom panel.
   3. In the Package Explorer tab, expand your tests directory and right-click on the package edu.ucsd.cse70.ircclient, then select Coverage as -> JUnit Test.
   4. In the Coverage tab, expand your src directory and the package edu.ucsd.cse70.ircclient. Double-click on IRCClient.java.
3. Improve your test coverage.
   1. After running the coverage analysis, look through your code and focus on the red and yellow areas. Red means the statement is never executed; yellow means it is executed but there is a boolean expression that doesn't take all possible values.
   2. TASK: Create Trac tickets for any areas where coverage can be improved, and assign them to pairs. Try to make everything green unless you have a good reason to leave certain code uncovered!
   3. As you develop your project, continually monitor and improve your test coverage.