Mockito 自定义方法处理逻辑


doAnswer 的作用和 thenAnswer 相同,但使用方式不同:

import org.junit.Assert;
import org.junit.Test;
import org.mockito.MockitoAnnotations;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;

import java.util.Random;

import static org.mockito.Mockito.*;

public class MockitoDemo {

    @Test
    public void test() {

        MockitoAnnotations.initMocks(this);

        Random random = mock(Random.class);
        doAnswer(new Answer() {
            @Override
            public Object answer(InvocationOnMock invocation) throws Throwable {
                return 1;
            }
        }).when(random).nextInt();

        Assert.assertEquals(1, random.nextInt());

    }

}


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Mockito 教程