The parse.junit package contains an abstract test class for JUnit tests; subclasses can define metabolic networks in a JUnit test method, however, these networks can be used like any other metabolic network source through {@link ch.javasoft.metabolic.parse.JUnitTestCaseParser JUnitTestCaseParser}. The JUnitTestCaseParser uses a {@link ch.javasoft.metabolic.parse.junit.TestDelegate TestDelegate} to override the default JUnit test code, redirecting it to standard elementary mode computation.