JUnit 测试类顺序 [英] JUnit test class order

问题描述

我有一个带有 Maven 的 Java 应用程序.用于测试的 Junit，带有故障安全和万无一失的插件.我有 2000 多个集成测试.为了加速测试运行，我使用故障安全 jvmfork 来并行运行我的测试.我有一些繁重的测试类，它们通常在我的测试执行结束时运行，这会减慢我的 CI 验证过程.filesafe runorder:balanced 对我来说是一个不错的选择，但我不能使用它，因为 jvmfork.重命名测试类或移动到另一个包并运行它 alpahabetical 不是一个选项.有什么建议可以在验证过程开始时运行我的慢速测试类吗?

I have a java app with maven. Junit for tests, with failsafe and surefire plugins. I have more than 2000 integration tests. To speed up the test running, I use failsafe jvmfork to run my tests parallel. I have some heavy test class, and they typically running at end of my test execution and it is slows down my CI verify process. The filesafe runorder:balanced would be a good option for me, but i cant use it because the jvmfork. To rename the test classes or move to another package and run it alpahabetical is not an option. Any suggestion how can I run my slow test classes at the begining of the verify process?

推荐答案

在 JUnit 5 中(来自版本 5.8.0 以后)也可以订购测试类.

In JUnit 5 (from version 5.8.0 onwards) test classes can be ordered too.

src/test/resources/junit-platform.properties:

# ClassOrderer$OrderAnnotation sorts classes based on their @Order annotation
junit.jupiter.testclass.order.default=org.junit.jupiter.api.ClassOrderer$OrderAnnotation

其他 Junit 内置类排序器实现:

Other Junit built-in class orderer implementations:

org.junit.jupiter.api.ClassOrderer$ClassName
org.junit.jupiter.api.ClassOrderer$DisplayName
org.junit.jupiter.api.ClassOrderer$Random

^{对于其他方式(除了 junit-platform.properties 文件)设置配置参数，请参见 JUnit 5 用户指南.}

^{For other ways (beside junit-platform.properties file) to set configuration parameters see JUnit 5 user guide.}

您也可以提供自己的订购者.它必须实现 ClassOrderer 接口:

You can also provide your own orderer. It must implement ClassOrderer interface:

package foo;
public class MyOrderer implements ClassOrderer {
    @Override
    public void orderClasses(ClassOrdererContext context) {
        Collections.shuffle(context.getClassDescriptors());
    }
}

junit.jupiter.testclass.order.default=foo.MyOrderer

请注意，@Nested 测试类不能由 ClassOrderer 排序.

参考 JUnit 5 文档 和 ClassOrderer api 文档 了解更多相关信息.

Note that @Nested test classes cannot be ordered by a ClassOrderer.

Refer to JUnit 5 documentations and ClassOrderer api docs to learn more about this.

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