Question

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;

@RunWith(org.powermock.modules.junit4.PowerMockRunner.class)
@PrepareForTest({MapMetadataDAO.class, Transform.class})
public class TransformTest {
    @Mock
    private MapMetadataDAO mapMetadataDAO;
    @Mock
    private Map<String,String> srcTargetMap;
    @InjectMocks
    private Transform Transform = new Transform();

    @Before
    public void init() {
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void testConstructor() throws Exception {
        List<MapMetadata> mapRecords = new ArrayList<MapMetadata>();
        mapRecords.add(new MapMetadata());
        PowerMockito.whenNew(MapMetadataDAO.class).withNoArguments().thenReturn(mapMetadataDAO);
        PowerMockito.when(mapMetadataDAO.findMapMetadataByTransformationID(Mockito.anyString())).thenReturn(mapRecords);
        Transform.getTransform("transformationId");
    }

}

class Transform{

    private MapMetadataDAO mapMetadataDAO;
    private Map<String,String> srcTargetMap;
    private List<MapMetadata> mapRecords;

    public Transform() {}

    public void getTransform(String transformationId){
        try {
            mapMetadataDAO=new MapMetadataDAO();
            mapRecords = mapMetadataDAO.findMapMetadataByTransformationID(transformationId);
            System.out.println(mapRecords.size()); 
            if(mapRecords.isEmpty()){
                throw new GenericFlowException("Map meta data is not defined for the transformationId "+transformationId);
            }
            map();
        } catch (DAOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (GenericFlowException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    private void map() {}
}

MockUp Runtime.availableProcessors可以，但是当MockUp System.currentTimeMillis出问题时，错误是“ java.lang.UnsatisfiedLinkError”。

@Test
public void mockNativeMethod() {
    new MockUp<Runtime>() {
        @Mock
        @SuppressWarnings("unused")
        int availableProcessors() {
            return 999;
        }
    };
    assertEquals(999, Runtime.getRuntime().availableProcessors());
}

Answer 1

不幸的是，这是一个JVM问题。（在1.43版之前，JMockit使用了丑陋的方法来避免失败。）

Jmockit样机System.currentTimeMillis挂起Java.lang.UnsatisfiedLinkError

1 个答案: