JUnit5

Question

我写 JUnit5 扩展。但是我找不到如何获得测试结果的方法。

扩展看起来像这样：

import org.junit.jupiter.api.extension.AfterTestExecutionCallback;
import org.junit.jupiter.api.extension.TestExtensionContext;

public class TestResultExtension implements AfterTestExecutionCallback {
    @Override
    public void afterTestExecution(TestExtensionContext context) throws Exception {
        //How to get test result? SUCCESS/FAILED
    }
}

任何提示如何获得测试结果？

Answer 1

我只有这个解决方案：

String testResult = context.getTestException().isPresent() ? "FAILED" : "OK";

看来效果不错。但我不确定它是否在所有情况下都能正常工作。

Answer 2

JUnit 中的失败通过异常传播。有几个异常，表示各种类型的错误。

因此 TestExtensionContext#getTestException() indicates an error. The method can't manipulate actual test results, so depending on your use case you might want to implement TestExecutionExceptionHandler 中的异常允许您吞下异常，从而改变测试是否成功。

Answer 3

正如其他答案所指出的，, so an AfterTestExecutionCallback can be used 。请注意，这很容易出错，因为扩展运行稍后可能仍无法通过测试。

另一种方法是 register a custom TestExecutionListener. Both of these approaches are a little roundabout, though. There is an issue that tracks a specific extension point for reacting to test results, which would likely be the most straight-forward answer to your question. If you can provide a specific use case, it would be great if you could head over to #542 并留下描述它的评论。

Answer 4

这对我有用：

public class RunnerExtension implements AfterTestExecutionCallback {

    @Override
    public void afterTestExecution(ExtensionContext context) throws Exception {
        Boolean testResult = context.getExecutionException().isPresent();
        System.out.println(testResult); //false - SUCCESS, true - FAILED
    }
}

@ExtendWith(RunnerExtension.class)
public abstract class Tests {

}

Answer 5

您可以使用 org.junit.platform.launcher.listeners

中的 SummaryGeneratingListener

它包含 MutableTestExecutionSummary 字段，它实现了 TestExecutionSummary 接口，通过这种方式您可以获取有关容器、测试、时间、失败等信息。

您可以创建自定义侦听器，例如：

创建扩展 SummaryGeneratingListener

public class ResultAnalyzer extends SummaryGeneratingListener {
    @Override
    public void testPlanExecutionFinished(TestPlan testPlan) {
        //This method is invoked after all tests in all containers is finished
        super.testPlanExecutionFinished(testPlan);
        analyzeResult();
    }

    private void analyzeResult() {
        var summary = getSummary();
        var failures = summary.getFailures();
        //Do something
    }
}

通过创建文件注册监听器

src\main\resources\META-INF\services\org.junit.platform.launcher.TestExecutionListener

并在其中指定您的实现

path.to.class.ResultAnalyzer

启用自动检测扩展，设置参数

-Djunit.jupiter.extensions.autodetection.enabled=true

就是这样！

文档

https://junit.org/junit5/docs/5.0.0/api/org/junit/platform/launcher/listeners/SummaryGeneratingListener.html

https://junit.org/junit5/docs/5.0.0/api/org/junit/platform/launcher/listeners/TestExecutionSummary.html

https://junit.org/junit5/docs/current/user-guide/#extensions-registration-automatic

Answer 6

你快到了。

要实现测试执行回调并获取用于记录（或生成报告）的测试结果，您可以执行以下操作：

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

public class TestResultExtension implements AfterTestExecutionCallback
{
    @Override
    public void afterTestExecution(ExtensionContext context) throws Exception
    {
        // check the context for an exception 
        Boolean passed = context.getExecutionException().isEmpty();
        
        // if there isn't, the test passed
        String result = passed ? "PASSED" : "FAILED";

        // now that you have the result, you can do whatever you want 
        System.out.println("Test Result: " + context.getDisplayName() + " " + result);
    }
}

然后您只需使用 @ExtendWith() 注释为您的测试用例添加 TestResultExtension：

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;

import static org.junit.jupiter.api.Assertions.assertTrue;

@ExtendWith(TestResultExtension.class)
public class SanityTest
{
    @Test
    public void testSanity()
    {
        assertTrue(true);
    }

    @Test
    public void testInsanity()
    {
        assertTrue(false);
    }
}

最好扩展包含扩展的基础测试

import org.junit.jupiter.api.extension.ExtendWith;

@ExtendWith(TestResultExtension.class)
public class BaseTest
{}

然后你不需要在每个测试中都包含注释：

public class SanityTest extends BaseTest
{ //... }

JUnit5 - 如何在 AfterTestExecutionCallback 中获取测试结果

JUnit5 - How to get test result in AfterTestExecutionCallback

java

junit

junit5-extension-model