我有一个DummyResource类和一个DummyTarget文件,还有一个如下的测试类TestDummyResource,但是模拟对象`DummyResource dr = mock(DummyResource.class)`只能在正常类中调用构造函数时才起作用,当在匿名类中调用时,它会调用实际的构造函数而不是使用模拟对象。
版本: powermock 1.4.12 mockito 1.9.0 junit 4.8.2
DummyTarget.java:
版本: powermock 1.4.12 mockito 1.9.0 junit 4.8.2
DummyTarget.java:
import java.io.IOException;
import java.io.OutputStream;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.StreamingOutput;
public class DummyTarget {
public StreamingOutput testMocking() {
return new StreamingOutput() {
@Override
public void write(OutputStream arg0) throws IOException, WebApplicationException {
new DummyResource();
}
};
}
}
DummyResource.java:
package com.smin.dummy;
public class DummyResource {
public DummyResource() {
System.out.println("mock failure");
}
}
TestDummyResource.java:
package com.smin.dummy;
import static org.mockito.Mockito.mock;
import java.io.IOException;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.StreamingOutput;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
@RunWith(PowerMockRunner.class)
@PrepareForTest({DummyResource.class,DummyTarget.class})
public class TestDummyResource {
@Before
public void setUp() throws Exception {
DummyResource dr = mock(DummyResource.class);
PowerMockito.whenNew(DummyResource.class).withNoArguments().thenReturn(dr);
}
@Test
public void testMocked() throws WebApplicationException, IOException {
new DummyResource(); // it uses the mocked object dr here,
//doesn't print "mock failure"
StreamingOutput sop = new DummyTarget().testMocking();
sop.write(null); // it calls DummyResource's constructor,
// prints ""mock failure"" here
}
}