JUnit Parameterized AND Parallel test example

AParallelTest.java

import org.junit.Test;
import org.junit.experimental.ParallelComputer;
import org.junit.runner.JUnitCore;

public class AParallelSuite {  
 
   // this method of executing JUnit tests is not recommended if you use a parallel
   // capable runner such as Maven, Gradle, XStudio, or Ant, etc.
 
   @Test  
    public void test() {      
      Class[] cls={JUnitTest6.class,JUnitTest5.class };  
 
      //Parallel among classes  
      JUnitCore.runClasses(ParallelComputer.classes(), cls);  
 
      //Parallel among methods in a class  
      //JUnitCore.runClasses(ParallelComputer.methods(), cls);  
 
      //Parallel all methods in all classes  
      //JUnitCore.runClasses(new ParallelComputer(true, true), cls);     
    }
}

build.gradle

....
// runs a filtered test class with Gradle JUnit runner
task runAParallelSuite(type: Test) {
   // uncomment maxParallelForks if you prefer to use the Gradle process forker
   // which also requires a complete change of how the suite class works
   // maxParallelForks = 4
   include '**/AParallelSuite.class'
   testReportDir = file("${reporting.baseDir}/AParallelSuite")
   testResultsDir = file("${buildDir}/test-results/AParallelSuite")
}
....

JunitTest5.java

import java.util.Arrays;
import java.util.Collection;
 
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
 
/**
 * JUnit Parameterized Test
 *   This is one of multiple JUnitTest classes
 * @author Jon Austen
 *
 */
@RunWith(value = Parameterized.class)
public class JunitTest5 {
 
   private int number;
 
   public JunitTest5(int number) {
	    this.number = number;
	 }
 
	 @Parameters
	 public static Collection<Object[]> data() {
	   Object[][] data = new Object[][] { { 1 }, { 2 }, { 3 }, { 4 } };
	   return Arrays.asList(data);
	 }
 
	 @Test
	 public void pushTest() {
	   System.out.println("Parameterized Number is : " + number);
	 } 
 
}

JUnitTest6.java

import java.util.Arrays;
import java.util.Collection;
 
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
 
/**
 * JUnit Parameterized Test
 *   This is one of multiple JUnitTest classes
 * @author Jon Austen
 *
 */
@RunWith(value = Parameterized.class)
public class JunitTest6 {
 
   private int number;
 
	 public JunitTest6(int number) {
	    this.number = number;
	 }
 
	 @Parameters
	 public static Collection<Object[]> data() {
	   Object[][] data = new Object[][] { { 1 }, { 2 }, { 3 }, { 4 } };
	   return Arrays.asList(data);
	 }
 
	 @Test
	 public void pushTest() {
	   System.out.println("Parameterized Number is : " + number);
	 }
 
 
}