Categories

直译：分类,分类执行的意思

Categories runner只运行那些有@Category注解或者@IncludeCategory注解的类,或者它的子类的方法。任何类或者接口都可以被作为categories.@IncludeCategory(SuperClass.class)和@Category({SubClass.class})标记的类将会被运行.

你可以可以用@ExcludeCategory注解排除一些类.

例子:

public class A{
    @Test
    public void a() {
        System.out.println("A.a");
        fail();
    }

    @Category(SlowTests.class)
    @Test
    public void b() {
        System.out.println("A.b");
    }
}

@Category({SlowTests.class, FastTests.class})
public class B {
    @Test
    public void c() {
        System.out.println("B.c");
    }
}

public interface FastTests {
}
public interface SlowTests {

}

@RunWith(Categories.class)
@Categories.IncludeCategory(SlowTests.class)
@Suite.SuiteClasses( { A.class, B.class })
public class SlowTestSuite {
}

运行结果如下:

A.b
B.c

@RunWith(Categories.class)
@Categories.IncludeCategory(SlowTests.class)
@Categories.ExcludeCategory(FastTests.class)
@Suite.SuiteClasses( { A.class, B.class })
public class SlowTestSuite2 {
}

运行结果如下:

A.b

<build>
  <plugins>
    <plugin>
      <artifactId>maven-surefire-plugin</artifactId>
      <configuration>
        <groups>com.junit.learning.category.FastTests</groups>
      </configuration>
    </plugin>
  </plugins>
</build>