Test Driven development overcomes many of the issues faced by development teams that often leave the creation of Unit Tests until after the implementation.
测试驱动开发能克服开发团队遇到的许多问题：开发团队经常在代码实现之后才创建单元测试。
2
Creation of unit tests is a time consuming process.
创建单元测试是一个耗费时间的过程。
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Let's take a detailed look at the creation of the unit tests from the previous listings.