TestNG：即使我正在运行一组测试，也会为每个组条目调用@BeforeGroups

Question

I see a problem in my testNG tests, the test is as follows.

public class testNG {

    @BeforeGroups(groups = {"smoketests", "functionaltests"})
    public void before() {
        System.out.println("Before Groups");
    }

    @Test(groups = {"smoketests", "functionaltests"})
    public void test() {
        System.out.println("Test");
    }

    @AfterGroups(groups = {"smoketests", "functionaltests"})
    public void after() {
        System.out.println("After Groups");
    }

}

When I run the tests from testNG command line by

java -cp :libs/* org.testng.TestNG -testjar libs/testNGLib.jar -groups smoketests

(Assume that the test jar is in some libs folder)

The output I get is as follows

Before Groups
Before Groups
Test
After Groups

I am not sure why the BeforeGroups is called twice even though I am only interested in running the test that's part of the smoketests group.

The problem doesn't happen if I only have smoketests group in the @Test directive, but I still don't understand the issue with @BeforeGroups with multiple groups in place.

Answer 1

Getting the same issue while running the test suite.

<suite name="Test Suite">
    <test name="GroupTest">
          <groups>
              <run>
                <include name="sanity"/>
              </run>
          </groups>
          <classes>
              <class name="SampleTest"/>
          </classes>
    </test>
</suite>

Below is the test class:

public class SampleTest {

    @BeforeGroups(groups = {"sanity","regression"})
    void beforeGroup(){
        System.out.println("Before Group");
    }

    @AfterGroups(groups = {"sanity","regression"})
    void afterGroups(){
        System.out.println("After Groups");
    }

    @Test(groups = {"sanity"})
    void m1(){
        System.out.println("m1");
    }

    @Test(groups = {"sanity","regression"})
    void m3(){
        System.out.println("m3");
    }
    @Test(groups = {"sanity"})
    void m4(){
        System.out.println("m4");
    }
    @Test(groups = {"regression"})
    void m5(){
        System.out.println("m5");
    }
    @Test
    void m6(){
        System.out.println(Sample.class.getName());
    }
}   

So when I am runnting the testng.xml, getting the following result:

Before Group
m1
Before Group
m3
After Groups
m4
After Groups

The following is the result after changing the group name to regression.

Before Group
m3
After Groups
m5
After Groups

@BefroreGroups and @Aftergroups get executed for both the group entries. Using TestNG 6.11 version.

Answer 2

Try use

@BeforeSuite(alwaysRun = true) instead of @BeforeGroups(groups = {"smoketests", "functionaltests"})

@AfterSuite(alwaysRun = true) instead of @AfterGroups(groups = {"smoketests", "functionaltests"})