Android ApplicationTestCase using a MockContext

Question

I\'m new to Android testing and I\'m trying to create an ApplicationTestCase using a MockContext (well actually I\'m trying to use a Renaming Mock Context). But I keep getti

Answer 1

As a workaround for that book sample, check the android developer guide to ApplicationTestCase: "If simply run your tests as-is, your Application will be injected with a fully-functional Context" (http://developer.android.com/reference/android/test/ApplicationTestCase.html).

A few lines of the Setup method must be commented to get the test working:

protected void setUp() throws Exception
    {
        super.setUp();
        // final RenamingMockContext mockContext = new RenamingMockContext(
        // getContext());
        // setContext(mockContext);

        createApplication();
        mApplication = getApplication();
    }

Answer 2

I've used AndroidTestCase to mock a simple context.

class ExampleTest extends AndroidTestCase
    public void setUp() {
      Context c = new DelegatedMockContext(getContext())
    }

    class DelegatedMockContext extends MockContext {

    private Context mDelegatedContext;
        private static final String PREFIX = "test.";

        public DelegatedMockContext(Context context) {
             mDelegatedContext = context;
        }

        @Override
        public String getPackageName(){
            return PREFIX;
        }

        @Override
        public SharedPreferences getSharedPreferences(String name, int mode) {
            return mDelegatedContext.getSharedPreferences(name, mode);
        }
    }
} 

Its just a bog standard Context, but will get you going