In the presentation Sagy, Development Team Lead at <a href="http://www.wix.com/">Wix</a> demonstrates his take on the style of TDD described in the book
<a href="http://www.growing-object-oriented-software.com/">Growing OO Systems Guided By Tests</a> written by Nat Pryce and Steve Freeman.
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Sagy shows how to apply the principles from the book as well as some additional design principles in the context of web service oriented architecture.
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He uses Java and <a href="http://junit.org/">JUnit</a> in this live coding presentation.
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How to test time related featured? Mocking time or running your own time-server.