android - How to generate DaggerComponent class in the test/java folder? -

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i'm new dagger 2 , i'm working on using dagger 2 unit tests. test presenter , mock of datasources(server connection, sharedpreferences).
sharedpreferences have sharedpreferencescomponent in main folder , sharedpreferencescomponentfake in test/java folder. problem dagger can't generate daggersharedpreferencescomponentfake therefore can't inject sharedpreferencesfake instead sharedpreferences. how can set dagger generate daggersharedpreferencesfake class , or using dagger 2 in wrong way

why not use mockito , mock sharedpreferencescomponent 

  mockito.when(sharedpreferencescomponent.yourmethod(any(string.class)))             .thenreturn(yourwanteroutput);

this make faking classes unnecessary , code cleaner.


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