public void ToStringShouldReturnDot()
        {
            // Arrange
            var target = new AnyCharacterNode();

            // Act
            var result = target.ToString();

            // Assert
            result.ShouldBe(".");
        }
        public void ToStringOnAnyCharacterNodeWithPrefixShouldReturnPrefixBeforeDot()
        {
            // Arrange
            var comment = new CommentGroupNode("This is a comment.");
            var target  = new AnyCharacterNode()
            {
                Prefix = comment
            };

            // Act
            var result = target.ToString();

            // Assert
            result.ShouldBe("(?#This is a comment.).");
        }