public void testWrongFindByUsernameNotPresent()
        {
            Dictionary <long, string> values = new Dictionary <long, string>();

            for (int i = 0; i < 10; i++)
            {
                string value = ('a' + i).ToString();
                values.Add(i, value);
            }
            Database db = new Database(values);

            db.FindByUsername("rtyui");
        }
        public void TestValidFindByUsername()
        {
            Dictionary <long, string> values = new Dictionary <long, string>();

            for (int i = 0; i < 10; i++)
            {
                string value = ('a' + i).ToString();
                values.Add(i, value);
            }
            Database db = new Database(values);

            db.FindByUsername("b");
        }