Write an example of a unit test for a Class methods using JU

Solution

Example of test case java using JUnitframework:

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());

}

}

Test suit Examples:

import org.junit.runner.RunWith;

import org.junit.runners.Suite;

//JUnit Suite Test

@RunWith(Suite.class)

@Suite.SuiteClasses({

   TestJunit1.class ,TestJunit2.class

})

public class JunitTestSuite {

}

import org.junit.Test;

import org.junit.Ignore;

import static org.junit.Assert.assertEquals;

public class TestJunit1 {

String message = \"Robert\";        

MessageUtil messageUtil = new MessageUtil(message);

@Test

public void testPrintMessage() {              

System.out.println(\"Inside testPrintMessage()\");   

assertEquals(message, messageUtil.printMessage());     

}

}

import org.junit.Test;

import org.junit.Ignore;

import static org.junit.Assert.assertEquals;

public class TestJunit2 {

String message = \"Robert\";        

MessageUtil messageUtil = new MessageUtil(message);

@Test

public void testSalutationMessage() {

System.out.println(\"Inside testSalutationMessage()\");

message = \"Hi!\" + \"Robert\";

assertEquals(message,messageUtil.salutationMessage());

}

}