Util Library and Extension Methods

using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using NUnit.Framework;
using StringExtensions.Encode;
using StringExtensions.Validators;

namespace TestExtensions
{
    [TestFixture]
    public partial class String
    {
        [Test]
        public void TEST_IS_VALID_EMAIL()
        {
            string pattern1 = "farhan.ejaz@anonymous.com";
            string pattern2 = "farhan_ejaz@anonymous.co.in";
            string pattern3 = "farhan_2b@in.anonymous.com";
            string pattern4 = "f@anonymous.de";
            string pattern5 = "e@anonymous.co.de";
            string pattern6 = "f@anonymous";
            string pattern7 = "e";

            Assert.IsTrue(pattern1.IsValidEmail());
            Assert.IsTrue(pattern2.IsValidEmail());
            Assert.IsTrue(pattern3.IsValidEmail());
            Assert.IsTrue(pattern4.IsValidEmail());
            Assert.IsTrue(pattern5.IsValidEmail());
            Assert.IsFalse(pattern6.IsValidEmail());
            Assert.IsFalse(pattern7.IsValidEmail());
            Assert.IsFalse(string.Empty.IsValidEmail());
        }
        [Test]
        public void TEST_IS_VALID_URI()
        {
            string pattern1 = "http://localhost/Default.aspx";
            string pattern2 = "http://www.google.co.in/";
            string pattern3 = "https://www.asmx.com";
            string pattern4 = "http://127.0.0.0:80/";
            string pattern5 = "https://12.1.90.34:9090/Default/Default.aspx?val=0";
            string pattern6 = "www.google.co.de";
            string pattern7 = "www.yahoo.com";

            Assert.IsTrue(pattern1.IsValidURI());
            Assert.IsTrue(pattern2.IsValidURI());
            Assert.IsTrue(pattern3.IsValidURI());
            Assert.IsTrue(pattern4.IsValidURI());
            Assert.IsTrue(pattern5.IsValidURI());
            Assert.IsFalse(pattern6.IsValidURI());
            Assert.IsFalse(pattern7.IsValidURI());
            Assert.IsFalse(string.Empty.IsValidURI());
        }
        [Test]
        public void TEST_IS_VALID_IP()
        {
            string pattern1 = "10.1.1.0";
            string pattern2 = "127.0.0.1";
            string pattern3 = "0.0.0.0";
            string pattern4 = "255.255.255.255";
            string pattern5 = "255.255.256.255";
            string pattern6 = "::";
            string pattern7 = "101:12:12:200";
            string pattern8 = "101.12.12.200.100.12";
            string pattern9 = "101.12.12.200.100.12.13";
            string pattern10 = "2001:0db8:0000:0000:0000:0000:1428:57ab";
            string pattern11 = "2001:0db8:0000:0000:0000::1428:57ab";
            string pattern12 = "2001:0db8:0:0:0:0:1428:57ab";
            string pattern13 = "2001:0db8:0:0::1428:57ab";
            string pattern14 = "2001:0db8::1428:57ab";
            string pattern15 = "2001:db8::1428:57ab";


            Assert.IsTrue(pattern1.IsValidIP());
            Assert.IsTrue(pattern2.IsValidIP());
            Assert.IsTrue(pattern3.IsValidIP());
            Assert.IsTrue(pattern4.IsValidIP());
            Assert.IsTrue(pattern10.IsValidIP());
            Assert.IsTrue(pattern11.IsValidIP());
            Assert.IsTrue(pattern12.IsValidIP());
            Assert.IsTrue(pattern13.IsValidIP());
            Assert.IsTrue(pattern14.IsValidIP());
            Assert.IsTrue(pattern15.IsValidIP());
            Assert.IsTrue(pattern6.IsValidIP());


            Assert.IsFalse(pattern5.IsValidIP());
            Assert.IsFalse(pattern7.IsValidIP());
            Assert.IsFalse(pattern8.IsValidIP());
            Assert.IsFalse(pattern9.IsValidIP());
            Assert.IsFalse(string.Empty.IsValidIP());
        }
        [Test]
        public void TEST_IS_PALINDROME()
        {
            string pattern1 = "SWIMS";
            string pattern2 = "MOM";
            string pattern3 = "MING";

            Assert.IsFalse(pattern1.IsPalindrome());
            Assert.IsTrue(pattern2.IsPalindrome());
            Assert.IsFalse(pattern3.IsPalindrome());
            Assert.IsFalse(string.Empty.IsPalindrome());
        }
    }
}