Working with JUnit in MB Toolkit using Eclipse

Step 1: Download Junit JAR file named "junit4/junit4-4.8.2.jar.zip" from this location

http://www.java2s.com/Code/Jar/j/Downloadjunit4482jar.htm

Step 2: Set Eclipse environment

• Add the JAR file in the References section

• 
  

Now your eclipse is ready for the development of JUnit test cases.

Step 3: Verify Junit installation in Eclipse

• Create a project TestJunit in eclipse at any location.
• Create a class MessageUtil to test in the project

   
/*
* This class prints the given message on console.
*/
public class MessageUtil {

   private String message;

   //Constructor
   //@param message to be printed
   public MessageUtil(String message){
      this.message = message;
   }
      
   // prints the message
   public String printMessage(){
      System.out.println(message);
      return message;
   }   
} 

• Create a test class TestJunit in the project

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

public class TestJunit {
 
   String message = "Hello World"; 
   MessageUtil messageUtil = new MessageUtil(message);

   @Test
   public void testPrintMessage() {   
      assertEquals(message,messageUtil.printMessage());
   }
}

Following should be the project structure

Finally, verify the output of the program by right click on program and run as junit

Verify the result