Run Junit Test from Maven and Main Class

Maven JUnit Test Run

Project Structure:
TestDemo
|-src/main/java
|--com.main
|---Cal.Java
|-src/test/java
|--com.test
|---CalcAdd.java
|---CalTUnit.java
|---RunTest.java
|-pom.xml


###########################
package com.main;

public class Calc {
        public static int addNumbers(int a, int b) {
        	return a+b;      	
    }   
    public static void main(String[] args) {
		System.out.println("I am in main method");
	}    
}



###########################


package com.test;

import org.junit.runner.JUnitCore;

public class CalcAdd { 
	static int sysNumber;	
    public static void addNumbers (int a, int b){  
    }
    
    public static void callJunit () {
    	sysNumber = Integer.parseInt(System.getProperty("number"));
    	System.out.println("Printing dNumber " +sysNumber);  
    	
    	for (int i=0; i<sysNumber; i++) {
    	JUnitCore junit = new JUnitCore();
        junit.run(CalcTUnit.class);
    	}
    }
}

###########################

package com.test;

import org.junit.Before;
import org.junit.Test;

public class CalcTUnit {

	@Before
	public void before() {		
	System.out.println("@ Before in CalcTest");	
	}
	
	@Test
	public void test() {
		System.out.println("------------ Number Printed from System property ---------------- = " +CalcAdd.sysNumber);			
	}
}


###########################

package com.test;

import static org.junit.Assert.*;
import org.junit.Test;

public class RunTest {

	@Test
	public void test() throws ClassNotFoundException {
		System.out.println("--------------------- Test Started ------------------------------");
		CalcAdd.callJunit();
	}
}


###########################pom.xml######################

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>Demo</groupId>
  <artifactId>TestDemo</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  
 
		<dependencies>
		  		<dependency>
					<groupId>junit</groupId>
					<artifactId>junit</artifactId>
					<version>4.11</version>
				</dependency>
		</dependencies>
		
		
		<build>  
			<plugins>  		  
				<!-- 	This plug in to execute main java class	 -->	
				<!-- <plugin>  
				   <groupId>org.codehaus.mojo</groupId>  
				   <artifactId>exec-maven-plugin</artifactId>  
				    <version>1.2.1</version> 
				   <executions>  
				    <execution>  
				     <phase>test</phase>  
				     <goals>  
				      <goal>java</goal>  
				     </goals>  
				     <configuration>  
				      <mainClass>com.main.Calc</mainClass>  		      
				     </configuration>  
				    </execution>  
				   </executions>  
				  </plugin> --> 
				<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
						<artifactId>maven-surefire-plugin</artifactId>
						<version>2.14.1</version>
						<inherited>true</inherited>
						
					<configuration>
						<systemProperties>
							<property>
								<name>number</name>
								<value>${number}</value>
							</property>
						</systemProperties>
				        </configuration>
				 </plugin>    
			 
			</plugins>  
		</build>
</project>