context = InstrumentationRegistry.getTargetContext();
	
String filenameOriginal = context.getCacheDir() + "/initial.csv";
	
appsrcandroidTest
└───res
    └───raw
            v1.csv
	
public static Uri resourceToUri(Context context, int resID)
    {
        return Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" +
                context.getResources().getResourcePackageName(resID) + '/' +
                context.getResources().getResourceTypeName(resID) + '/' +
                context.getResources().getResourceEntryName(resID));
    }

    resourceToUri(context, R.raw.v1)
	
import com.my_thing.app.my_app.test.R;
	
context = InstrumentationRegistry.getInstrumentation().getContext();