编写测试(Writing a Tests)
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小牛编辑
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2023-12-01
在这里,我们将看到一个使用POJO类,业务逻辑类和测试类的JUnit测试的完整示例,它将由测试运行器运行。
在C:\“JUNIT_WORKSPACE中创建EmployeeDetails.java ,这是一个POJO类。
public class EmployeeDetails {
private String name;
private double monthlySalary;
private int age;
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
public void setName(String name) {
this.name = name;
}
/**
* @return the monthlySalary
*/
public double getMonthlySalary() {
return monthlySalary;
}
/**
* @param monthlySalary the monthlySalary to set
*/
public void setMonthlySalary(double monthlySalary) {
this.monthlySalary = monthlySalary;
}
/**
* @return the age
*/
public int getAge() {
return age;
}
/**
* @param age the age to set
*/
public void setAge(int age) {
this.age = age;
}
}
EmployeeDetails类用于 -
- 获取/设置员工姓名的值。
- 获取/设置员工月薪的值。
- 获取/设置员工年龄的值。
在C:\“JUNIT_WORKSPACE中创建一个名为EmpBusinessLogic.java的文件,其中包含业务逻辑。
public class EmpBusinessLogic {
// Calculate the yearly salary of employee
public double calculateYearlySalary(EmployeeDetails employeeDetails) {
double yearlySalary = 0;
yearlySalary = employeeDetails.getMonthlySalary() * 12;
return yearlySalary;
}
// Calculate the appraisal amount of employee
public double calculateAppraisal(EmployeeDetails employeeDetails) {
double appraisal = 0;
if(employeeDetails.getMonthlySalary() < 10000){
appraisal = 500;
}else{
appraisal = 1000;
}
return appraisal;
}
}
EmpBusinessLogic类用于计算 -
- 员工的年薪。
- 员工的评估金额。
在C:\“JUNIT_WORKSPACE中创建一个名为TestEmployeeDetails.java的文件,其中包含要测试的测试用例。
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class TestEmployeeDetails {
EmpBusinessLogic empBusinessLogic = new EmpBusinessLogic();
EmployeeDetails employee = new EmployeeDetails();
//test to check appraisal
@Test
public void testCalculateAppriasal() {
employee.setName("Rajeev");
employee.setAge(25);
employee.setMonthlySalary(8000);
double appraisal = empBusinessLogic.calculateAppraisal(employee);
assertEquals(500, appraisal, 0.0);
}
// test to check yearly salary
@Test
public void testCalculateYearlySalary() {
employee.setName("Rajeev");
employee.setAge(25);
employee.setMonthlySalary(8000);
double salary = empBusinessLogic.calculateYearlySalary(employee);
assertEquals(96000, salary, 0.0);
}
}
TestEmployeeDetails类用于测试EmpBusinessLogic类的方法。 它
- 测试员工的年薪。
- 测试员工的评估金额。
接下来,在C:\“JUNIT_WORKSPACE中创建一个名为TestRunner.java的java类,以执行测试用例。
import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;
public class TestRunner {
public static void main(String[] args) {
Result result = JUnitCore.runClasses(TestEmployeeDetails.class);
for (Failure failure : result.getFailures()) {
System.out.println(failure.toString());
}
System.out.println(result.wasSuccessful());
}
}
使用javac编译测试用例和Test Runner类。
C:\JUNIT_WORKSPACE>javac EmployeeDetails.java
EmpBusinessLogic.java TestEmployeeDetails.java TestRunner.java
现在运行Test Runner,它将运行在提供的Test Case类中定义的测试用例。
C:\JUNIT_WORKSPACE>java TestRunner
验证输出。
true