A complete implementation of Junit Suite

This is the class under Test

package com.junit.suite.example;

public class Math {

 public static int addition(int num1, int num2) {
  return num1 + num2;
 }

 public static int substraction(int num1, int num2) {
  return num1 - num2;
 }

 public static double division(int num1, int num2) {
  return num1 / num2;
 }

}

This is test class for Addition

package com.junit.suite.example;

import static org.junit.Assert.*;

import java.util.Arrays;
import java.util.List;

import org.junit.After;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

// perform the test using parameters
@RunWith(Parameterized.class)
public class AdditionMathTest {

 int expectedNumber;
 int num1;
 int num2;

 // create a constructor to pass the values
 public AdditionMathTest(int expectedNumber, int num1, int num2) {
  // TODO Auto-generated constructor stub
  this.expectedNumber = expectedNumber;
  this.num1 = num1;
  this.num2 = num2;
 }

 // create a parameterized method
 @Parameters
 public static List<Object[]> createData() {
  return Arrays.asList(new Object[][] { {4,2,1}, {6,3,3}, {8,4,4} });
 }

 @BeforeClass
 public static void setUpBeforeClass() throws Exception {
 }

 @AfterClass
 public static void tearDownAfterClass() throws Exception {
 }

 @Before
 public void setUp() throws Exception {
 }

 @After
 public void tearDown() throws Exception {
 }

 @Test
 public void testAddition1() {
//  System.out.println(expectedNumber+"\t"+num1+"\t"+num2);
  Assert.assertTrue(expectedNumber==(Math.addition(num1, num2)));
 }
 
 @Test
 public void testAddition2()
 {
  Assert.assertEquals(expectedNumber, Math.addition(num1, num2));
 }

}

This is test class for Substraction

package com.junit.suite.example;

import static org.junit.Assert.*;
import java.util.Arrays;
import java.util.List;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
public class SubstractionMathTest {

 int expectedNumber;
 int num1;
 int num2;

 // create a constructor to pass the values
 public SubstractionMathTest(int expectedNumber, int num1, int num2) {
  // TODO Auto-generated constructor stub
  this.expectedNumber = expectedNumber;
  this.num1 = num1;
  this.num2 = num2;
 }

 // create a parameterized method
 @Parameters
 public static List<Object[]> createData() {
  return Arrays.asList(new Object[][] { { 4, 2, 1 }, { 6, 3, 3 }, { 8, 4, 4 } });
 }

 @BeforeClass
 public static void setUpBeforeClass() throws Exception {
 }

 @AfterClass
 public static void tearDownAfterClass() throws Exception {
 }

 @Before
 public void setUp() throws Exception {
 }

 @After
 public void tearDown() throws Exception {
 }

 @Test
 public void testAddition() {
  // System.out.println(expectedNumber+"\t"+num1+"\t"+num2);
  Assert.assertTrue(expectedNumber == (Math.substraction(num1, num2)));
 }

 @Test
 public void testAddition2() {
  Assert.assertEquals(expectedNumber, Math.substraction(num1, num2));
 }
}

This is test class for Division

package com.junit.suite.example;

import static org.junit.Assert.*;

import java.util.Arrays;
import java.util.List;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
public class DivisionMathTest {

 int expectedNumber;
 int num1;
 int num2;

 // create a constructor to pass the values
 public DivisionMathTest(int expectedNumber, int num1, int num2) {
  // TODO Auto-generated constructor stub
  this.expectedNumber = expectedNumber;
  this.num1 = num1;
  this.num2 = num2;
 }

 // create a parameterized method
 @Parameters
 public static List<Object[]> createData() {
  return Arrays.asList(new Object[][] { { 4, 2, 1 }, { 6, 3, 3 }, { 8, 4, 4 } });
 }

 @BeforeClass
 public static void setUpBeforeClass() throws Exception {
 }

 @AfterClass
 public static void tearDownAfterClass() throws Exception {
 }

 @Before
 public void setUp() throws Exception {
 }

 @After
 public void tearDown() throws Exception {
 }

 @Test
 public void testAddition() {
  // System.out.println(expectedNumber+"\t"+num1+"\t"+num2);
  Assert.assertTrue(expectedNumber == (Math.division(num1, num2)));
 }

}

This is where the suite is implemented. All test classes are clubbed together

package com.junit.suite.example;

import org.junit.runner.RunWith;
import org.junit.runners.Suite;

@RunWith(Suite.class)
@Suite.SuiteClasses({
 AdditionMathTest.class,
 SubstractionMathTest.class,
 DivisionMathTest.class
})
public class MathTestSuite {

 
 
 
}

This is the runner class for suite

package com.junit.suite.example;

import java.util.Iterator;
import java.util.List;

import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;

public class MathTestRunner {

 public static void main(String[] args) {
  Result run = JUnitCore.runClasses(MathTestSuite.class);
  List<Failure> failures = run.getFailures();
  Iterator<Failure> it = failures.iterator();
  while (it.hasNext()) {
   System.out.println(it.next().toString());
  }

 }

}

HHH