How to exclude all the test files except two using maven? - maven

Question

I like to do have something like bellow which will exclude all test cases except two of the test files?
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.12.4</version>
<configuration>
<excludes>
<exclude>**/*Test.java</exclude>
</excludes>
<includes>
<include>path/to/Some1Test.java</include>
<include>path/to/Some2Test.java</include>
</includes>
</configuration>
</plugin>
Critical fact in here, the test files that I do not want to exclude, also has the same naming pattern as the files I want to exclude. Thanks in advance.

Answer 1

excludes wins on includes for the surefire plugin configuration (not documented but works in this way). And it makes sense, since excludes should be seen as the exceptional case and includes as the general case : you geneally want to include all but .....
But here you want to exactly the reverse.
So don't mix both elements because with your actual conf :
<configuration>
<excludes>
<exclude>**/*Test.java</exclude>
</excludes>
<includes>
<include>path/to/Some1Test.java</include>
<include>path/to/Some2Test.java</include>
</includes>
</configuration>
you exclude all sinceexcludes excludes all here(<exclude>**/*Test.java</exclude>) and that excludes win on includes.
All you need is to define includes only to make only these tests executed :
<configuration>
<includes>
<include>path/to/Some1Test.java</include>
<include>path/to/Some2Test.java</include>
</includes>
</configuration>

Answer 2

Following is the solution with an example:
package com.example1;
import org.junit.Test;
public class TestClass1 {
#Test
public void test1() {
}
}
package com.example1;
import org.junit.Test;
public class TestClass2 {
#Test
public void test2() {
}
}
package com.example2;
import org.junit.Test;
public class TestClass1 {
#Test
public void test1() {
}
}
package com.example2;
import org.junit.Test;
public class TestClass2 {
#Test
public void test2() {
}
}
Now, following is the surefire plugin configuration for inclusion of com.example1.TestClass1 and com.example1.TestClass2. Here, other test classes will not be executed except these two.
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.12.4</version>
<configuration>
<includes>
<include>com/example1/TestClass1.java</include>
<include>com/example1/TestClass2.java</include>
</includes>
</configuration>
</plugin>
</plugins>
</build>