Surefire没有接受Junit 4测试

思维：

由于某种原因，我无法获得Maven 2 Surefire插件来执行JUnit 4测试类。

public class SimpleTest {
  @org.junit.Test
  public void simple() {
     System.out.println("foo");
  }
}

但是，如果我将此类更改为类似于JUnit-3的类，例如

public class SimpleTest extends junit.framework.TestCase {
  public void testBar() {
     System.out.println("bar");
  }

  @org.junit.Test
  public void simple() {
     System.out.println("foo");
  }
}

然后执行它。这是我所做的：

验证的Maven版本：Apache Maven 2.2.1（r801777; 2009-08-06 20：16：01 + 0100）
验证的Surefire版本：遵循此建议
经过验证的Surefire版本：我的选中的Surefire罐子~/.m2/repository/org/apache/maven/surefire-全部都是2.4.2或2.4.3版本
做了一个mvn dependency:tree | grep junit以确保我仅依赖于junit版本4.7

我遇到这个问题的模块没有JUnit 3测试。

还有什么我想念的吗？

思维：

mvn -X 帮助我揭示了以下内容：

...
[INFO] [surefire:test {execution: default-test}]
[DEBUG] dummy:dummy:jar:1.0 (selected for null)
[DEBUG]   org.apache.maven.surefire:surefire-booter:jar:2.4.3:runtime (selected for runtime)
[DEBUG]     org.apache.maven.surefire:surefire-api:jar:2.4.3:runtime (selected for runtime)
[DEBUG] Adding to surefire booter test classpath: /home/mindas/.m2/repository/org/apache/maven/surefire/surefire-booter/2.4.3/surefire-booter-2.4.3.jar
[DEBUG] Adding to surefire booter test classpath: /home/mindas/.m2/repository/org/apache/maven/surefire/surefire-api/2.4.3/surefire-api-2.4.3.jar
[DEBUG] dummy:dummy:jar:1.0 (selected for null)
[DEBUG]   org.testng:testng:jar:jdk15:5.8:test (selected for test)
[DEBUG]     junit:junit:jar:3.8.1:test (selected for test)
[DEBUG] Adding to surefire booter test classpath: /home/mindas/.m2/repository/org/testng/testng/5.8/testng-5.8-jdk15.jar
[DEBUG] Adding to surefire booter test classpath: /home/mindas/.m2/repository/junit/junit/3.8.1/junit-3.8.1.jar
[DEBUG] dummy:dummy:jar:1.0 (selected for null)
[DEBUG] Retrieving parent-POM: org.apache.maven.surefire:surefire-providers:pom:2.4.3 for project: null:surefire-testng:jar:null from the repository.
[DEBUG] Adding managed dependencies for unknown:surefire-testng
[DEBUG]   org.apache.maven.surefire:surefire-api:jar:2.4.3
[DEBUG]   org.apache.maven.surefire:surefire-booter:jar:2.4.3
[DEBUG]   org.codehaus.plexus:plexus-utils:jar:1.5.1
[DEBUG]   org.apache.maven.surefire:surefire-testng:jar:2.4.3:test (selected for test)
[DEBUG]     org.apache.maven:maven-artifact:jar:2.0:test (selected for test)
[DEBUG]       org.codehaus.plexus:plexus-utils:jar:1.0.4:test (selected for test)
[DEBUG]     junit:junit:jar:3.8.1:test (selected for test)
[DEBUG]     org.testng:testng:jar:jdk15:5.7:test (selected for test)
[DEBUG]     org.apache.maven.surefire:surefire-api:jar:2.4.3:test (selected for test)
...
[DEBUG] Test Classpath :
...
[DEBUG]   /home/mindas/.m2/repository/junit/junit/4.7/junit-4.7.jar

因此，似乎问题出在testng需要JUnit v3.8.1的jar中。即使Test Classpath设置为依赖JUnit 4，也为时已晚。

testng 依赖项位于我的POM中：

<dependency>
  <groupId>org.testng</groupId>
  <artifactId>testng</artifactId>
  <version>5.8</version>
  <scope>test</scope>
  <classifier>jdk15</classifier>
</dependency>

在我将其注释掉之后，立即开始执行测试。

得到教训：