First
JUnit Example in Eclipse
Below
are the Steps for the First JUnint example:
(Use
Eclipse IDE)
1.
Create a new Java Project "JunitBasic".
2.
Add JUnit jar to your class path. (junit-4.10.jar)
3.
Create a new Class "SalaryCalculation.java"
public
class
SalaryCalculation {
public
double
overTimeCalc(int
overTime, double
otRate){
return
overTime * otRate;
}
public
double
incentiveCalc(double
basicSalary, int
noOfDays){
double
incentive = 0D;
if(noOfDays>25)
incentive
= ( basicSalary / 30 ) * 2.5;
if(noOfDays>22
&& noOfDays<=25)
incentive
= ( basicSalary / 30 ) * 1.5;
return
incentive;
}
public
double
bonusCalc(double
basicSalary, double
bounsPercentage){
return
basicSalary * 12 * bounsPercentage;
}
public
double
monthlySalaryCacl(double
basicSalary, int
noOfDays, int
overTime, double
otRate, double
bounsPercentage){
return
basicSalary + overTimeCalc(overTime, otRate) +
incentiveCalc(basicSalary, noOfDays) + bonusCalc(basicSalary,
bounsPercentage);
}
}
4.
Go to the Package Explorer / Navigator and select the class
SalaryCalculation.java
Then
Right click the class and Go new -->
JUnit Test Case. Once you click on that it will open the
below window.
5.
Once you click the “next” button it will open this window. Now
select what are the methods you need to perform the Unit testing and
click the “Finish” button.
6.
Now modify the created “SalaryCalculationTest.java” class with
your test scenarios.
import
junit.framework.Assert;
import
org.junit.Test;
/**
*
@author
sanjeeva
*
Assert.assertEquals(String message, double expected, double
actual, double delta);
*/
public
class
SalaryCalculationTest {
SalaryCalculation
salaryCalculation
= new
SalaryCalculation();
@Test
public
void
testOverTimeCalc() {
Assert.assertEquals("OverTime
should be", 125,
salaryCalculation.overTimeCalc(10,
12.5), 0.00);
}
@Test
public
void
testIncentiveCalc() {
Assert.assertEquals("When
attendance grater than 25 Incentive should be",
833, Math.floor(salaryCalculation.incentiveCalc(10000,
30)), 0.00);
Assert.assertEquals("When
attendance betwee 22 to 25 Incentive should be",
500, Math.floor(salaryCalculation.incentiveCalc(10000,
25)), 0.00);
}
@Test
public
void
testBonusCalc() {
Assert.assertEquals("Bonus
should be", 6000,
salaryCalculation.bonusCalc(10000,
0.05), 0.00);
}
@Test
public
void
testMonthlySalaryCacl() {
Assert.assertEquals("Monthly
Salary should be", 16958,
Math.floor(salaryCalculation.monthlySalaryCacl(10000,
30, 10, 12.5, 0.05)), 0.00);
Assert.assertEquals("Monthly
Salary should be", 16625,
Math.floor(salaryCalculation.monthlySalaryCacl(10000,
25, 10, 12.5, 0.05)), 0.00);
}
}
7.
Execute the test class by using “Junit
Test” command.
a.
Right click the test class.
b.
Then Go : Run As → Junit Test
8.
Once you run the class If all the test scenarios are passed you will
get the below window. By changing the parameters you can check the
scenarios got fail or pass. If the scenario got failed “Fail
Tracer” will be indicate the details.
