设定Mock对象的期望行为及返回值

1. package com.lijun.mockito;
   
   
   import static org.mockito.Mockito.*;
   
   
   import static org.junit.Assert.*;
   import org.junit.Before;
   import org.junit.Test;
   import org.mockito.Mock;
   import org.mockito.MockitoAnnotations;
   
   
   /*******************************
   * 对于final类，匿名类和JAVA基本类型是无法进行Mock的
   * 对于static和final修饰的方法是无法进行设定的
   *
   */
   public class MockitoSampleTest {
   
   
   // 对接口进行模拟
   UserService mockUserService = mock(UserService.class);
   
   
   // 对类进行模拟
   UserServiceImpl mockServiceImpl = mock(UserServiceImpl.class);
   
   
   @Mock
   User mockUser;
   
   
   @Before
   public void initMocks() {
   // 初始化当前测试类所有@Mock注解模拟对象
   MockitoAnnotations.initMocks(this);
   }
   
   
   // 模拟接口UserService测试
   @Test
   public void testMockInterface() {
   // 对方法设定返回值
   when(mockUserService.findUserByUserName("tom")).thenReturn(
   new User("tom", "1234"));
   
   
   // 对方法设定返回值
   doReturn(true).when(mockUserService).hasMatchUser("tom", "1234");
   
   
   // 对void方法进行方法预期设定
   User u = new User("John", "1234");
   doNothing().when(mockUserService).registerUser(u);
   
   
   // 执行方法调用
   User user = mockUserService.findUserByUserName("tom");
   boolean isMatch = mockUserService.hasMatchUser("tom", "1234");
   mockUserService.registerUser(u);
   
   
   assertNotNull(user);
   assertEquals(user.getUserName(), "tom");
   assertEquals(isMatch, true);
   
   
   }
   
   
   @Test
   public void testMockClass() {
   // 对方法设定返回值
   when(mockServiceImpl.findUserByUserName("tom")).thenReturn(
   new User("tom", "1234"));
   doReturn(true).when(mockServiceImpl).hasMatchUser("tom", "1234");
   
   User user = mockServiceImpl.findUserByUserName("tom");
   boolean isMatch = mockServiceImpl.hasMatchUser("tom", "1234");
   
   assertNotNull(user);
   assertEquals(user.getUserName(), "tom");
   assertEquals(isMatch, true);
   }
   
   @Test
   public void testMockUser() {
   when(mockUser.getUserName()).thenReturn("tom");
   
   assertEquals(mockUser.getUserName(), "tom");
   }
   }