### Question:
Utils { public static synchronized String getScreenDensity(Context context) { String screenType = ""; try { int density = context.getApplicationContext().getResources().getDisplayMetrics().densityDpi; switch (density) { case DisplayMetrics.DENSITY_LOW: screenType = "ldpi"; break; case DisplayMetrics.DENSITY_MEDIUM: screenType = "mdpi"; break; case DisplayMetrics.DENSITY_HIGH: screenType = "hdpi"; break; case DisplayMetrics.DENSITY_XHIGH: screenType = "xhdpi"; break; default: screenType = "other"; break; } } catch (Exception e) { screenType = ""; } return screenType; }  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 shouldBeAbleToGetDeviceScreenDensity() { String screenDensity = Utils.getScreenDensity(context); assertThat(screenDensity, is(notNullValue())); }