public void MessageReturnsPropertyNameCanNotBeAnEmptyString()
        {
            const string propertyName = "EmptyPropertyName";
            var sut = new NotEmptyString(propertyName);
            const string expected = propertyName + " can not be an empty string";

            var actual = sut.Message;

            Assert.Equal(expected, actual);
        }
        public void IsOfTypeBrokenRule()
        {
            var sut = new NotEmptyString("fd");

            Assert.IsAssignableFrom<BrokenRule>(sut);
        }