Threads with lambda demo

Test.java

package test.myapplication;


import static org.junit.Assert.*;
/**
 * Created by Pavneet Singh on 11/14/2017.
 * Email : Pavneet.edu@gmail.com
 */

public class Test {

    @org.junit.Test
    public void testing(){
        // assert id and name of main thread
        assertMainNameAndID(Thread.currentThread().getName(),Thread.currentThread().getId());

        // assert id and name of worker thread 1
        new Thread(()->{
            assertWorkerNameAndID(Thread.currentThread().getName(),Thread.currentThread().getId());
        }).start();

        // No thread will be created , assert same value as first case
        new Thread(()->{
            assertMainNameAndID(Thread.currentThread().getName(),Thread.currentThread().getId());
        }).run();

        // assert id and name of worker thread 2
        new Thread(()->{
            assertWorkerNameAndID(Thread.currentThread().getName(),Thread.currentThread().getId());
        }).start();
    }

    private void assertMainNameAndID(String name, long id){
        assertEquals("Main thread ","main",name);
        assertTrue(id==1);
    }

    private void assertWorkerNameAndID(String name, long id){
        assertTrue("Worker Thread "+id,name.matches("Thread-\\d+"));
        assertTrue(id>1);
    }
}