- EasyMock教程
- EasyMock - 主页
- EasyMock - 概述
- EasyMock - 环境设置
- EasyMock - 第一个应用程序
- EasyMock - JUnit 集成
- EasyMock - 添加Behave
- EasyMock - 验证Behave
- EasyMock - 期待来电
- EasyMock - 不同的调用
- EasyMock - 异常处理
- EasyMock-createMock
- EasyMock - createStrictMock
- EasyMock - createNiceMock
- EasyMock 有用资源
- EasyMock - 快速指南
- EasyMock - 有用的资源
- EasyMock - 讨论
EasyMock - 验证Behave
EasyMock 可以确保模拟是否正在使用。这是使用verify()方法完成的。看一下下面的代码片段。
//activate the mock EasyMock.replay(calcService); //test the add functionality Assert.assertEquals(mathApplication.add(10.0, 20.0),30.0,0); //verify call to calcService is made or not EasyMock.verify(calcService);
没有 EasyMock.Verify() 的示例
步骤1:创建一个名为CalculatorService的接口来提供数学函数
文件:CalculatorService.java
public interface CalculatorService { public double add(double input1, double input2); public double subtract(double input1, double input2); public double multiply(double input1, double input2); public double divide(double input1, double input2); }
第2步:创建一个JAVA类来表示MathApplication
文件:MathApplication.java
public class MathApplication { private CalculatorService calcService; public void setCalculatorService(CalculatorService calcService){ this.calcService = calcService; } public double add(double input1, double input2){ //return calcService.add(input1, input2); return input1 + input2; } public double subtract(double input1, double input2){ return calcService.subtract(input1, input2); } public double multiply(double input1, double input2){ return calcService.multiply(input1, input2); } public double divide(double input1, double input2){ return calcService.divide(input1, input2); } }
步骤 3:测试 MathApplication 类
让我们通过向其中注入calculatorService 的模拟来测试MathApplication 类。模拟将由 EasyMock 创建。
文件:MathApplicationTester.java
import org.easymock.EasyMock; import org.easymock.EasyMockRunner; import org.easymock.Mock; import org.easymock.TestSubject; import org.junit.Assert; import org.junit.Before; import org.junit.Test; import org.junit.runner.RunWith; // @RunWith attaches a runner with the test class to initialize the test data @RunWith(EasyMockRunner.class) public class MathApplicationTester { // @TestSubject annotation is used to identify class which is going to use the mock object @TestSubject MathApplication mathApplication = new MathApplication(); //@Mock annotation is used to create the mock object to be injected @Mock CalculatorService calcService; @Test public void testAdd(){ //add the behavior of calc service to add two numbers EasyMock.expect(calcService.add(10.0,20.0)).andReturn(30.00); //activate the mock EasyMock.replay(calcService); //test the add functionality Assert.assertEquals(mathApplication.add(10.0, 20.0),30.0,0); //verify call to calcService is made or not //EasyMock.verify(calcService); } }
步骤 4:执行测试用例
在C:\> EasyMock_WORKSPACE中创建一个名为 TestRunner 的 java 类文件来执行测试用例。
文件:TestRunner.java
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(MathApplicationTester.class); for (Failure failure : result.getFailures()) { System.out.println(failure.toString()); } System.out.println(result.wasSuccessful()); } }
第 5 步:验证结果
使用javac编译器编译类,如下所示 -
C:\EasyMock_WORKSPACE>javac Calculator Service.java Math Application.java Math Application Tester.java Test Runner.java
现在运行测试运行程序以查看结果。
C:\EasyMock_WORKSPACE>java TestRunner
输出
验证输出。
true
EasyMock.Verify() 示例
步骤1:创建接口CalculatorService以提供数学函数
文件:CalculatorService.java
public interface CalculatorService { public double add(double input1, double input2); public double subtract(double input1, double input2); public double multiply(double input1, double input2); public double divide(double input1, double input2); }
第2步:创建一个JAVA类来表示MathApplication
文件:MathApplication.java
public class MathApplication { private CalculatorService calcService; public void setCalculatorService(CalculatorService calcService){ this.calcService = calcService; } public double add(double input1, double input2){ //return calcService.add(input1, input2); return input1 + input2; } public double subtract(double input1, double input2){ return calcService.subtract(input1, input2); } public double multiply(double input1, double input2){ return calcService.multiply(input1, input2); } public double divide(double input1, double input2){ return calcService.divide(input1, input2); } }
步骤 3:测试 MathApplication 类
让我们通过向其中注入calculatorService 的模拟来测试MathApplication 类。模拟将由 EasyMock 创建。
文件:MathApplicationTester.java
import org.easymock.EasyMock; import org.easymock.EasyMockRunner; import org.easymock.Mock; import org.easymock.TestSubject; import org.junit.Assert; import org.junit.Before; import org.junit.Test; import org.junit.runner.RunWith; // @RunWith attaches a runner with the test class to initialize the test data @RunWith(EasyMockRunner.class) public class MathApplicationTester { // @TestSubject annotation is used to identify class which is going to use the mock object @TestSubject MathApplication mathApplication = new MathApplication(); //@Mock annotation is used to create the mock object to be injected @Mock CalculatorService calcService; @Test public void testAdd(){ //add the behavior of calc service to add two numbers EasyMock.expect(calcService.add(10.0,20.0)).andReturn(30.00); //activate the mock EasyMock.replay(calcService); //test the add functionality Assert.assertEquals(mathApplication.add(10.0, 20.0),30.0,0); //verify call to calcService is made or not EasyMock.verify(calcService); } }
步骤 4:执行测试用例
在C:\> EasyMock_WORKSPACE中创建一个名为 TestRunner 的 java 类文件来执行测试用例。
文件:TestRunner.java
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(MathApplicationTester.class); for (Failure failure : result.getFailures()) { System.out.println(failure.toString()); } System.out.println(result.wasSuccessful()); } }
第 5 步:验证结果
使用javac编译器编译类,如下所示 -
C:\EasyMock_WORKSPACE>javac Calculator Service.java Math Application.java Math Application Tester.java Test Runner.java
现在运行测试运行程序来查看结果 -
C:\EasyMock_WORKSPACE>java TestRunner
输出
验证输出。
testAdd(MathApplicationTester): Expectation failure on verify: CalculatorService.add(10.0, 20.0): expected: 1, actual: 0 false