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    <p>There are several books that describe how to build a unit test framework. One of those is <a href="http://rads.stackoverflow.com/amzn/click/0321146530" rel="noreferrer">Test-Driven Development: By Example</a> (TDD) by Kent Beck. Another book you might look at is <a href="http://rads.stackoverflow.com/amzn/click/0131495054" rel="noreferrer">xUnit Test Patterns: Refactoring Test Code</a> by Gerard Meszaros.</p> <ul> <li>Why do you want to build your own unit test framework?</li> <li>Which ones have you tried and what did you find that was missing?</li> </ul> <p>If (as your comments suggest) your objective is to learn about the factors that go into making a good unit test framework by doing it yourself, then chapters 18-24 (Part II: The xUnit Example) of the TDD book show how it can be done in Python. Adapting that to Java would probably teach you quite a lot about Python, unit testing frameworks and possibly Java too.</p> <p>It will still be valuable to you to have some experience with some unit test framework so that you can compare what you produce with what others have produced. Who knows, you might have some fundamental insight that they've missed and you may improve things for everyone. (It isn't very likely, I'm sorry to say, but it is possible.)</p> <p>Note that the TDD people are quite adamant that TDD does not work well with databases. That is a nuisance to me as my work is centred on DBMS development; it means I have to adapt the techniques usually espoused in the literature to accommodate the realities of 'testing whether the DBMS works does mean testing against a DBMS'. I believe that the primary reason for their concern is that setting up a database to a known state takes time, and therefore makes testing slower. I can understand that concern - it is a practical problem.</p>
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