Moreover, running different types of developer tests, such as component, functional and performance, can shine a light on problem areas earlier in the development life cycle.
Scenario 3: a developer receives a defect ticket for a problem encountered in a functional test cycle.
情况3:开发人员收到了一张关于功能测试周期中遇到的问题的缺陷清单。
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In the last few years, however, a number of open source tools have sprung up that address functional testing; moreover, you can easily employ these tools early in the development life cycle.