### Question:
Utils { public static synchronized long getTotalInternalMemorySize() { long totalInternalMemorySize = 0; try { File path = Environment.getDataDirectory(); StatFs stat = new StatFs(path.getPath()); long blockSize; long totalBlocks; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) { blockSize = stat.getBlockSizeLong(); totalBlocks = stat.getBlockCountLong(); } else { blockSize = stat.getBlockSize(); totalBlocks = stat.getBlockCount(); } totalInternalMemorySize = (totalBlocks * blockSize); } catch (Exception e) { totalInternalMemorySize = 0; } return totalInternalMemorySize; }  static synchronized Map<String, String> getMemoryInfo(Context context); static synchronized boolean hasExternalMemory(); static synchronized long getTotalExternalMemorySize(); static synchronized long getAvailableExternalMemorySize(); static synchronized long getTotalInternalMemorySize(); static synchronized long getAvailableInternalMemorySize(); static synchronized long getTotalRAM(Context context); static synchronized boolean isConnected(Context context); static synchronized boolean isWifiEnabled(Context context); static synchronized String getNetworkType(Context context); static synchronized Map<String, String> getDisplayInfo(Context context); static synchronized String getScreenDensity(Context context); static synchronized int getScreenHeight(Context context); static synchronized int getScreenWidth(Context context); static synchronized String asEmpty(String value); static synchronized String getCountryCode(Context context); static synchronized String getCountryName(Context context); static synchronized Map<String, String> getLocaleInfo(Context context); static synchronized String getLanguageCode(Context context); static synchronized String getLanguageName(Context context); static synchronized String getTimezone(); static synchronized String getVersionName(Context context); static synchronized String getVersionCode(Context context); static synchronized Map<String, String> getPackageInfo(Context context); static synchronized Map<String, String> getBuildInfo(); static synchronized String getUUID(Context context); static final String NETWORK_TYPE_WIFI; static final String NETWORK_TYPE_MOBILE; }### Answer:
@Test public void shouldBeAbleToGetDeviceTotalInternalMemory() { long totalInternalMemorySize = Utils.getTotalInternalMemorySize(); assertThat(totalInternalMemorySize, is(notNullValue())); }