MemorySizeCalculator getCalculator() { when(screenDimensions.getWidthPixels()).thenReturn(pixelSize); when(screenDimensions.getHeightPixels()).thenReturn(pixelSize); return new MemorySizeCalculator.Builder(RuntimeEnvironment.application) .setMemoryCacheScreens(memoryCacheScreens) .setBitmapPoolScreens(bitmapPoolScreens) .setMaxSizeMultiplier(sizeMultiplier) .setActivityManager(activityManager) .setScreenDimensions(screenDimensions) .setArrayPoolSize(byteArrayPoolSizeBytes) .build(); }