上游充鱼大 SJTU School Of Software 2009-2-3 JUNIT 必 For application developers,testing forms an integral part of the development life-cycle. 必 As old code is modified for reasons ranging from adding new functionality to speed optimizations, the risk of dependent functionality getting broken increases. 必 Tests that are written once,and can be run repeatedly is the only solution to avoid manually QA testing. 必 To write these tests,for applications written in java,JUnit provides a solid framework for writing unit tests.Many JUnit integrations also exist to integrate your JUnit tests into build and development tools. 软件学院SJTU School Of Software 2009-2-3 软件学院 JUNIT ™ For application developers, testing forms an integral part of the development life-cycle. ™ As old code is modified for reasons ranging from adding new functionality to speed optimizations, the risk of dependent functionality getting broken increases. ™ Tests that are written once, and can be run repeatedly is the only solution to avoid manually QA testing. ™ To write these tests, for applications written in java, JUnit provides a solid framework for writing unit tests. Many JUnit integrations also exist to integrate your JUnit tests into build and development tools