If a unit test is harder to write than the code it is testing, it might be a functional test.
如果编写单元测试比编写其所测试的代码更难，则它可能是功能测试。
Testing: you can't write unit, functional, or integration tests for these workflows.
测试：你不能为工作流编写单元，功能或集成测试。
JUnit is very good at unit testing; however, it unravels when attempting to write functional tests.
JUnit非常适合编写单元测试；但是，当试图编写功能测试时，它就显得力不从心了。
JUnit is very good at unit testing; however, it unravels when attempting to write functional tests.
JUnit非常适合编写单元测试；但是，当试图编写功能测试时，它就显得力不从心了。
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