MockDemoApplicationTests.java
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package com.mock.example.mockdemo;
import org.junit.jupiter.api.Test;
import org.junit.runner.RunWith;
import org.mockito.Mockito;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.stereotype.Component;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.List;
@RunWith(SpringRunner.class)
@SpringBootTest
class MockDemoApplicationTests {
@MockBean
TestBean testBean;
@Test
public void test() {
Mockito.when(testBean.sayHello()).thenReturn(1);
System.out.println(testBean.sayHello());
}
@Test
public void testVerify() throws Exception {
//创建 mock 对象
List mockedList = Mockito.mock(List.class);
mockedList.add("test1");
mockedList.add("test2");
mockedList.add("test2");
mockedList.clear();
//验证是否执行了一次 add("test1") 操作
Mockito.verify(mockedList).add("test1");
//同上面验证是否执行了一次 add("test1") 操作,默认就是 time(1)
Mockito.verify(mockedList, Mockito.times(1)).add("test1");
//验证是否执行了3次 add("test2") 操作
//verify(mockedList, times(3)).add("test2");
Mockito.verify(mockedList).clear();
}
}
@Component
class TestBean {
public int sayHello(){
System.out.println("hello world");
return 0;
}
}