Mockito spy does not work

Question

I am trying to test my android project by Mockito.

But it seems that spy does not work as I think. Isn't a spy object is equal to a real object?

when I try to call a method of spy object, testing result alway is AbstractMethodError(just as follows).

java.lang.AbstractMethodError: abstract method not implemented
at com.google.dexmaker.mockito.InvocationHandlerAdapter$ProxiedMethod.isAbstract(InvocationHandlerAdapter.java)
at org.mockito.internal.invocation.InvocationImpl.callRealMethod(InvocationImpl.java:109)
at org.mockito.internal.stubbing.answers.CallsRealMethods.answer(CallsRealMethods.java:41)
at org.mockito.internal.handler.MockHandlerImpl.handle(MockHandlerImpl.java:93)
at org.mockito.internal.handler.NullResultGuardian.handle(NullResultGuardian.java:29)
at org.mockito.internal.handler.InvocationNotifierHandler.handle(InvocationNotifierHandler.java:38)
at com.google.dexmaker.mockito.InvocationHandlerAdapter.invoke(InvocationHandlerAdapter.java:49)
at ArrayList_Proxy.add(ArrayList_Proxy.generated)

My test case:

public void testGetAllCountryKeywords_WithSpy(){
    List<String> list = new ArrayList<>();
    List spy = spy(list);
    spy.add("hi");

}

Here is the dependencies in my build.gradle.

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile 'junit:junit:4.12'
    androidTestCompile "com.google.dexmaker:dexmaker:1.+"
    androidTestCompile "com.google.dexmaker:dexmaker-mockito:1.+"
    androidTestCompile 'org.mockito:mockito-core:1.10.+'
    androidTestCompile 'com.android.support.test:runner:0.3'
}

Can someone give me some suggestion? I really have no idea. Thanks!

May be a bug between mockito 1.10 and dexmaker 1.2. Can you try forcing mockito 1.9.5 and see if that fixes it? https://code.google.com/p/dexmaker/issues/detail?id=43 — Yosef Weiner, Jul 12 '15 at 05:30
Same problem here. I was using 2.0.7-beta. Using version 1.9.5 sorts it. — Darren, Jul 13 '15 at 06:47
@SkinnyJ After I changed the version to 1.9.5, spy works! Thanks! — Sandy Lin, Jul 13 '15 at 11:05

score 0 · Answer 1 · answered Jul 14 '15 at 06:21

0

You are missing the generic type, reference 'spy' proxy can not know its type

public void testGetAllCountryKeywords_WithSpy(){ List list = new ArrayList<>(); List spy = spy(list); spy.add("hi");

}

answered Jul 14 '15 at 06:21

kuhajeyan

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Sorry. It seems that this is not the reason causing this error. I try to add the generic type, but the spy still doesn't work. – Sandy Lin Jul 15 '15 at 04:00
@TobeyLin what exactly the error that you are getting – kuhajeyan Jul 15 '15 at 05:07
Just as same as "abstract method not implemented" – Sandy Lin Jul 15 '15 at 06:23

Mockito spy does not work

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