JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

Publish Your Article Here

Program: Assertion method Assert.assertEquals() example.


Java Class: org.junit.Assert

Assert class provides a set of assertion methods useful for writing tests.

Assert.assertEquals() methods checks that the two objects are equals or not. If they are not, an AssertionError without a message is thrown. Incase if both expected and actual values are null, then this method returns equal. In the below example, the first Test (mySimpleEqualsTest()) compares two strings. The second test (myObjectEqualsTest()) we are comparing two different user defined objects. The assertEquals() method calls equals method on each object to check equality.


package com.java2novice.junit.tests;

import org.junit.Test;

import com.java2novice.junit.samples.Employee;

import static org.junit.Assert.*;

public class MyAssertEqualsTest {

	@Test
	public void mySimpleEqualsTest(){
		
		String expectedName = "Nattu";
		assertEquals(expectedName, Employee.getEmpNameWithHighestSalary());
	}
	
	@Test
	public void myObjectEqualsTest(){
		
		Employee expectedEmpObj = new Employee(1, "Nattu", 15000);
		assertEquals(expectedEmpObj, Employee.getHighestPaidEmployee());
	}
}

package com.java2novice.junit.samples;

import java.util.ArrayList;
import java.util.List;

public class Employee {

	private String name;
	private int empId;
	private int salary;
	
	public Employee(int id, String name, int sal){
		this.empId = id;
		this.name = name;
		this.salary = sal;
	}
	
	public boolean equals(Object obj){
		Employee emp = (Employee) obj;
		boolean status = false;
		if(this.name.equalsIgnoreCase(emp.name)
				&& this.empId == emp.empId 
				&& this.salary == emp.salary){
			status = true;
		}
		return status;
	}
	
	public static String getEmpNameWithHighestSalary(){
		/**
		 * logic to get Highest paid employee
		 */
		return "Nattu";
	}
	
	public static Employee getHighestPaidEmployee(){
		/**
		 * hiding logic to get highest paid employee
		 */
		return new Employee(1, "Nattu", 15000);
	}
	
	public int hashCode(){
		return this.empId;
	}
	
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getEmpId() {
		return empId;
	}
	public void setEmpId(int empId) {
		this.empId = empId;
	}
	public int getSalary() {
		return salary;
	}
	public void setSalary(int salary) {
		this.salary = salary;
	}
}

<< Previous Program | Next Program >>
blog comments powered by Disqus

Java JUnit Examples

  1. Simple JUnit test using @Test annotation.
  2. List of JUnit annotations.
  3. Assertion method Assert.assertArrayEquals() example.
  4. How to do JUnit test for comapring two list of user defined objects?
  5. Assertion method Assert.assertEquals() example.
  6. Assertion method Assert.assertFalse() example.
  7. Assertion method Assert.assertTrue() example.
  8. Assertion method Assert.assertNotNull() example.
  9. Assertion method Assert.assertNull() example.
  10. Assertion method Assert.assertNotSame() example.
  11. Assertion method Assert.assertSame() example.
Knowledge Centre
Transient and Volatile Modifiers
Transient: The transient modifier applies to variables only and it is not stored as part of its object's Persistent state. Transient variables are not serialized.

Volatile: Volatile modifier applies to variables only and it tells the compiler that the variable modified by volatile can be changed unexpectedly by other parts of the program.
Famous Quotations
The very best thing you can do for the whole world is to make the most of yourself.
-- Wallace Wattles

About Author

Most Visited Pages

Other Interesting Sites

Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
Privacy Policy | Copyright © 2017 by Nataraja Gootooru. All Rights Reserved.