这里介绍了TestWatcher API：

• https://github.com/junit-team/junit5/pull/1393的
• https://junit.org/junit5/docs/5.4.0/release-notes/的

使用方法如下：
1.实现TestWatcher类（org.junit.jupiter.API.extension.TestWatcher）
1.将@ExtendWith(<Your class>.class)添加到您的测试类中（我个人使用一个基本测试类，我在每个测试中都会扩展它）（https：//junit.org/junit5/docs/current/user-guide/#extensions）
TestWatcher为您提供了以下方法来在测试中止，失败，成功和禁用时执行某些操作：

• testAborted​(ExtensionContext context, Throwable cause)个
• testDisabled​(ExtensionContext context, Optional<String> reason)个
• testFailed​(ExtensionContext context, Throwable cause)
• testSuccessful​(ExtensionContext context)

https://junit.org/junit5/docs/current/api/org/junit/jupiter/api/extension/TestWatcher.html的
示例TestWatcher实现：

import java.util.Optional;

import org.junit.jupiter.api.extension.ExtensionContext;
import org.junit.jupiter.api.extension.TestWatcher;

public class MyTestWatcher implements TestWatcher {
    @Override
    public void testAborted(ExtensionContext extensionContext, Throwable throwable) {
        // do something
    }

    @Override
    public void testDisabled(ExtensionContext extensionContext, Optional<String> optional) {
        // do something
    }

    @Override
    public void testFailed(ExtensionContext extensionContext, Throwable throwable) {
        // do something
    }

    @Override
    public void testSuccessful(ExtensionContext extensionContext) {
        // do something
    }
}

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然后你就把这个写进你的测试里：

@ExtendWith(MyTestWatcher.class)
public class TestSomethingSomething {
...

型

你可以使用AfterTestExecutionCallback：

public class SomeTest {

    @RegisterExtension
    private final AfterTestExecutionCallback afterTest = context -> {
        final Optional<Throwable> exception = context.getExecutionException();
// if you need method name:
//      final Method method = context.getRequiredTestMethod();
// one method for error/success:
//      after(method, exception);
// or if(exception.isPresent()){}else{})
        exception.ifPresentOrElse(this::onError, this::onSuccess);
    };

    private void onSuccess() {
// Success? Do something
    }

    private void onError(Throwable throwable1) {
// Fail? Do something else
    }

    @Test
    public void testSomething() {
// put tests here or in a child class
    }

...

}

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