No methods matching the name(s) getMyHandler were found in the class hierarchy of interface

[mike]

Hi,

I have tried to do partial mock of a method that is located on the object that I test another method on.

I am using PowerMock ( mockito) 1.5.

Looks something like:

@RunWith(PowerMockRunner.class)
@PrepareForTest({Node.class })
public class NodeTest {

    private MyObjectHandler handlerMock = null;
    private Node partialMock = null;
    private Resource resourceMock = null;
    private Profile profileMock = null;

    @Before
    public void setup() throws Exception {
        resourceMock = mock(Resource.class);
        profileMock = mock(Profile.class);
        handlerMock = mock(MyObjectHandler.class);
        partialMock = spy(new
                Node(resourceMock, profileMock));
       


    }
    
    @Test
    public void myTest() throws Exception {
     PowerMockito.when(partialMock, "getMyHandler").thenReturn(handlerMock);


    }
    
}

I have checked my class Node and it has the following method:

 @Override
    public MyObjectHandler getMyHandler() {
      
    }

I get the following error  (below).

Any ideas?

br,

//mike

org.powermock.reflect.exceptions.MethodNotFoundException: No methods matching the name(s) getMyHandler were found in the class hierarchy of interface org.mockito.internal.util.MockitoSpy.
    at org.powermock.reflect.internal.WhiteboxImpl.getMethods(WhiteboxImpl.java:1902)
    at org.powermock.reflect.internal.WhiteboxImpl.getMethods(WhiteboxImpl.java:1931)
    at org.powermock.reflect.internal.WhiteboxImpl.getBestMethodCandidate(WhiteboxImpl.java:1025)
    at org.powermock.core.MockGateway.doMethodCall(MockGateway.java:89)
    at org.powermock.core.MockGateway.methodCall(MockGateway.java:168)
    at company.Node.getMyHandler(Node.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.powermock.reflect.internal.WhiteboxImpl.performMethodInvocation(WhiteboxImpl.java:2014)
    at org.powermock.reflect.internal.WhiteboxImpl.doInvokeMethod(WhiteboxImpl.java:885)
    at org.powermock.reflect.internal.WhiteboxImpl.invokeMethod(WhiteboxImpl.java:713)
    at org.powermock.reflect.Whitebox.invokeMethod(Whitebox.java:401)
    at org.powermock.api.mockito.PowerMockito.when(PowerMockito.java:426)
    at company.NodeTest.myTest(NodeTest.java:89)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:66)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:312)
    at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:86)
    at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:94)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:296)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit49RunnerDelegateImpl$PowerMockJUnit49MethodRunner.executeTestInSuper(PowerMockJUnit49RunnerDelegateImpl.java:116)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit49RunnerDelegateImpl$PowerMockJUnit49MethodRunner.executeTest(PowerMockJUnit49RunnerDelegateImpl.java:77)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:284)
    at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:84)
    at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:209)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:148)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:122)
    at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
    at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
    at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:101)
    at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
    at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:53)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

[Johan Haleby]

Hmm I think it ought to work but you could also try replacing

PowerMockito.when(partialMock, "getMyHandler").thenReturn(handlerMock);

with:

PowerMockito.doReturn(handlerMock).when(partialMock, "getMyHandler");

and see if you get the same error. Also try upgrading to PowerMock 1.5.1.

Regards,

/Johan

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[mike]

Hi,

I tried to change to:

PowerMockito.doReturn(

handlerMock).when(partialMock, "getMyHandler");

but then I get a NullPointer ( see below).

java.lang.NullPointerException
    at org.powermock.api.mockito.internal.expectation.PowerMockitoStubberImpl.addAnswersForStubbing(PowerMockitoStubberImpl.java:67)
    at org.powermock.api.mockito.internal.expectation.PowerMockitoStubberImpl.prepareForStubbing(PowerMockitoStubberImpl.java:124)
    at org.powermock.api.mockito.internal.expectation.PowerMockitoStubberImpl.when(PowerMockitoStubberImpl.java:92)
    at company.NodeTest.myTest(NodeTest.java:90)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)

I also upgraded to 1.5.1 and I still get the same error.

br,

//mike

[Johan Haleby]

Ok thanks for trying it out. I'll see if you can find some time to reproduce (and possibly fix) it during the weekend.

[mike]

ok. Let me know if you need more input.

//mike

[Johan Haleby]

Ok so I think the problem is that you're using the wrong spy method (the one from Mockito). You must use PowerMock.spy(..) when spying using the PowerMock API.

On Fri, Aug 30, 2013 at 10:22 AM, mike <mikaelpe...@gmail.com> wrote:

ok. Let me know if you need more input.

//mike

--

[mike]

Thanks for looking into it. Yes that was the issue.

br,

//mike

[Tiecong Li]

Do you mean using the PowerMockito.spy() fixed the issue? 

[mike]

Hi

Yes it fixad mycket problem.
Br,
Mike