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google / gwtmockito

Better GWT unit testing
https://google.github.io/gwtmockito
Apache License 2.0
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Caused by: java.lang.ClassCastException: com.google.gwt.dom.client.Element$$EnhancerByMockitoWithCGLIB$$57c66b4f cannot be cast to com.google.gwt.user.client.Element #43

Open riyaz47 opened 9 years ago

riyaz47 commented 9 years ago

Hi i am facing the below exception while using Mockito 1.1.4 for creating junit test case for my GWT class, can some help me fixing it

Exception :

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at com.google.gwtmockito.GwtMockitoTestRunner.withBefores(GwtMockitoTestRunner.java:326) at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:261) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at com.google.gwtmockito.GwtMockitoTestRunner.run(GwtMockitoTestRunner.java:307) 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) Caused by: java.lang.reflect.InvocationTargetException 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:606) at com.google.gwtmockito.GwtMockitoTestRunner.withBefores(GwtMockitoTestRunner.java:324) ... 16 more Caused by: java.lang.ExceptionInInitializerError at sun.reflect.GeneratedSerializationConstructorAccessor1.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.objenesis.instantiator.sun.SunReflectionFactoryInstantiator.newInstance(SunReflectionFactoryInstantiator.java:40) at org.objenesis.ObjenesisBase.newInstance(ObjenesisBase.java:59) at org.mockito.internal.creation.jmock.ClassImposterizer.createProxy(ClassImposterizer.java:128) at org.mockito.internal.creation.jmock.ClassImposterizer.imposterise(ClassImposterizer.java:63) at org.mockito.internal.creation.jmock.ClassImposterizer.imposterise(ClassImposterizer.java:56) at org.mockito.internal.creation.CglibMockMaker.createMock(CglibMockMaker.java:23) at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:26) at org.mockito.internal.MockitoCore.mock(MockitoCore.java:51) at org.mockito.Mockito.mock(Mockito.java:1243) at org.mockito.Mockito.mock(Mockito.java:1120) at com.google.gwtmockito.GwtMockito.registerGwtMocks(GwtMockito.java:203) at com.google.gwtmockito.GwtMockito.initMocks(GwtMockito.java:133) ... 21 more Caused by: java.lang.ClassCastException: com.google.gwt.dom.client.Element$$EnhancerByMockitoWithCGLIB$$57c66b4f cannot be cast to com.google.gwt.user.client.Element at com.extjs.gxt.ui.client.core.El.isBorderBox(El.java:156) at com.extjs.gxt.ui.client.GXT.init(GXT.java:317) at com.extjs.gxt.ui.client.widget.Component.(Component.java:203) ... 35 more

ckuetbach commented 9 years ago

I also had a classcast-issue.

May be this Annotation will help?

@RunWith(GwtMockitoTestRunner.class)
@WithClassesToStub({Element.class})
public class MyGWTTest { ...
teoDev commented 4 years ago

I have the same issue like @riyaz47 , and @WithClassesToStub({Element.class}) Did not solve this problem.