class FastSharedPreferences implements EnhancedSharedPreferences {

    public static FastSharedPreferences get(String name) {
        if (name == null || name.length() == 0) {
            return null;
        }
        synchronized (FastSharedPreferences.class) {
            return FSP_CACHE.get(name);
        }
    }

}

class FastSharedPreferencesTest {

    @Mock Context context;
    @Mock Context appContext;

    @Test
    public void testLoad() {

        FastSharedPreferences sharedPreferences = FastSharedPreferences.get("test_load");
        assertNotNull(sharedPreferences);
    }

}