public void Test_Validation_True()
        {
            SimilarCharactersRule rule = new SimilarCharactersRule();

            Assert.True(rule.Validate("aa"));
            Assert.True(rule.Validate("aiodbb"));
            Assert.True(rule.Validate("cvbnyyjj"));
        }
        public void Test_Validation_False()
        {
            SimilarCharactersRule rule = new SimilarCharactersRule();

            Assert.False(rule.Validate("ab"));
            Assert.False(rule.Validate("aikjhsfudsyfu"));
            Assert.False(rule.Validate("beib"));
        }