无涯教程-JUnit - 编写测试在这里，无涯教程将看到一个使用POJO类，业务逻辑类和一个测试类进行JUnit测试的

在这里，无涯教程将看到一个使用POJO类，业务逻辑类和一个测试类进行JUnit测试的完整示例，该类将由测试运行程序运行。

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;
}
}

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 {
   //计算员工的年薪
   public double calculateYearlySalary(EmployeeDetails employeeDetails) {
      double yearlySalary = 0;
      yearlySalary = employeeDetails.getMonthlySalary() * 12;
      return yearlySalary;
   }
//计算员工的评估金额
public double calculateAppraisal(EmployeeDetails employeeDetails) {
double appraisal = 0;
  </span><span class="kwd">if</span><span class="pun">(</span><span class="pln">employeeDetails</span><span class="pun">.</span><span class="pln">getMonthlySalary</span><span class="pun">()</span><span class="pln"> </span><span class="pun">&lt;</span><span class="pln"> </span><span class="lit">10000</span><span class="pun">){</span><span class="pln">
     appraisal </span><span class="pun">=</span><span class="pln"> </span><span class="lit">500</span><span class="pun">;</span><span class="pln">
  </span><span class="pun">}</span><span class="kwd">else</span><span class="pun">{</span><span class="pln">
     appraisal </span><span class="pun">=</span><span class="pln"> </span><span class="lit">1000</span><span class="pun">;</span><span class="pln">
  </span><span class="pun">}</span><span class="pln">
	
  </span><span class="kwd">return</span><span class="pln"> appraisal</span><span class="pun">;</span><span class="pln">

}
}

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();
//测试检查评估
@Test
public void testCalculateAppriasal() {
employee.setName("Rajeev");
employee.setAge(25);
employee.setMonthlySalary(8000);
  </span><span class="kwd">double</span><span class="pln"> appraisal </span><span class="pun">=</span><span class="pln"> empBusinessLogic</span><span class="pun">.</span><span class="pln">calculateAppraisal</span><span class="pun">(</span><span class="pln">employee</span><span class="pun">);</span><span class="pln">
  assertEquals</span><span class="pun">(</span><span class="lit">500</span><span class="pun">,</span><span class="pln"> appraisal</span><span class="pun">,</span><span class="pln"> </span><span class="lit">0.0</span><span class="pun">);</span><span class="pln">

}
//测试检查年薪
@Test
public void testCalculateYearlySalary() {
employee.setName("Rajeev");
employee.setAge(25);
employee.setMonthlySalary(8000);
  </span><span class="kwd">double</span><span class="pln"> salary </span><span class="pun">=</span><span class="pln"> empBusinessLogic</span><span class="pun">.</span><span class="pln">calculateYearlySalary</span><span class="pun">(</span><span class="pln">employee</span><span class="pun">);</span><span class="pln">
  assertEquals</span><span class="pun">(</span><span class="lit">96000</span><span class="pun">,</span><span class="pln"> salary</span><span class="pun">,</span><span class="pln"> </span><span class="lit">0.0</span><span class="pun">);</span><span class="pln">

}
}

接下来，在C:\> JUNIT WORKSPACE中创建一个名为TestRunner.java的Java类字段以执行测试用例。

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);
  </span><span class="kwd">for</span><span class="pln"> </span><span class="pun">(</span><span class="typ">Failure</span><span class="pln"> failure </span><span class="pun">:</span><span class="pln"> result</span><span class="pun">.</span><span class="pln">getFailures</span><span class="pun">())</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
     </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="pln">failure</span><span class="pun">.</span><span class="pln">toString</span><span class="pun">());</span><span class="pln">
  </span><span class="pun">}</span><span class="pln">
	
  </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="pln">result</span><span class="pun">.</span><span class="pln">wasSuccessful</span><span class="pun">());</span><span class="pln">

}
}

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

无涯教程-JUnit - 编写测试

参考链接