EasyMock createMock

到目前為止，我們已經(jīng)使用注解來創(chuàng)建Mocks。 EasyMock提供了各種方法來創(chuàng)建模擬對象。 EasyMock.createMock()創(chuàng)建的模擬，但沒有理會方法的順序調(diào)用模擬會在作出其行動的適當(dāng)時機(jī)。

語法

calcService = EasyMock.createMock(CalculatorService.class);	

示例

創(chuàng)建一個接口CalculatorService，其目的是提供各種計算相關(guān)的功能。

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);
}

創(chuàng)建一個Java類用來表示MathApplication。

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);		
   }
   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);
   }
}

讓我們來測試MathApplication類，通過它注入CalculatorService作一個模擬。Mock將由EasyMock創(chuàng)建。

在這里，我們已經(jīng)添加了兩個模擬方法調(diào)用，add()和subtract()來模擬對象，通過expect()。但在測試過程中，我們調(diào)用Add()方法前調(diào)用subtract()。當(dāng)我們創(chuàng)建模擬對象使用EasyMock.createMock()，以便執(zhí)行方法。

import org.easymock.EasyMock;
import org.easymock.EasyMockRunner;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

@RunWith(EasyMockRunner.class)
public class MathApplicationTester {
	
   private MathApplication mathApplication;
   private CalculatorService calcService;
   
   @Before
   public void setUp(){
      mathApplication = new MathApplication();
      calcService = EasyMock.createMock(CalculatorService.class);
      mathApplication.setCalculatorService(calcService);
   }

   @Test
   public void testAddAndSubstract(){
      //add the behavior to add numbers
      EasyMock.expect(calcService.add(20.0,10.0)).andReturn(30.0);
      //subtract the behavior to subtract numbers
      EasyMock.expect(calcService.subtract(20.0,上一篇：EasyMock calcService.serviceUsed（）調(diào)用兩次示例下一篇：EasyMock times(min,max)示例