Junit @AfterClass(非静态)

问题描述

Junit的@BeforeClass和@AfterClass必须声明为静态.有一个很好的解决方法，在这里@BeforeClass的a>.我的课堂上有很多单元测试，只想初始化和清理一次.对如何获取@AfterClass的解决方法有任何帮助吗?我想在不引入其他依赖的情况下使用Junit.谢谢！

Junit's @BeforeClass and @AfterClass must be declared static. There is a nice workaround here for @BeforeClass. I have a number of unit tests in my class and only want to initialize and clean up once. Any help on how to get a workaround for @AfterClass? I'd like to use Junit without introducing additional dependencies. Thanks!

推荐答案

如果您想要的内容与@BeforeClass中提到的解决方法类似，则可以跟踪已运行了多少测试，然后一旦运行了所有测试最后执行结束清理代码.

If you want something similar to the workaround mentioned for @BeforeClass, you could keep track of how many tests have been ran, then once all tests have been ran finally execute your ending cleanup code.

public class MyTestClass {
  // ...
  private static int totalTests;
  private int testsRan;
  // ...

  @BeforeClass
  public static void beforeClass() {
    totalTests = 0;
    Method[] methods = MyTestClass.class.getMethods();
    for (Method method : methods) {
      if (method.getAnnotation(Test.class) != null) {
        totalTests++;
      }
    }
  }

  // test cases...

  @After
  public void after() {
    testsRan++;
    if (testsRan == totalTests) {
       // One time clean up code here...
    }
  }
}

这假定您正在使用JUnit4.如果需要考虑从超类继承的方法，请参见获取类的所有方法的方式，因为此解决方案没有继承的方法.

This assumes you're using JUnit 4. If you need to account for methods inherited from a superclass, see this as this solution does not get inherited methods.

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