isanagram, C# - rextester

isanagram

using Microsoft.VisualStudio.TestTools.UnitTesting;
using ConsoleAppNunit;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace rextester
{
    [TestClass()]
    public class ProgramTests
    {
        [TestMethod()]
        public void ISAnagramTest()
        {
            Assert.IsTrue(ISAnagram("cinema", "iceman"));
            Assert.IsTrue(ISAnagram("Tom Marvolo Riddle", "I am Lord Voldemort"));
            Assert.IsTrue(ISAnagram("Dave Barry", "Ray Adverb"));
            Assert.IsTrue(ISAnagram("debit card", "bad credit"));
            Assert.IsTrue(ISAnagram("astronomer", "Moon starer"));
            Assert.IsTrue(ISAnagram("abc123", "c3b2a1"));
            Assert.IsTrue(!ISAnagram("banana", "bananas"));
            Assert.IsTrue(!ISAnagram("bananab", "abanana"));
            Assert.IsTrue(!ISAnagram("Tom Riddle", "I'm Lord Voldemort?"));
            Assert.IsTrue(!ISAnagram("abc123", "a11b22c33"));
        }

public bool ISAnagram(string v1, string v2)
        {
            v1 = v1.Replace(" ", String.Empty);
            v2 = v2.Replace(" ", String.Empty);
            if (v1.Length != v2.Length)
                return false;
            //Convert string to character array  
            char[] firstCharsArray = v1.ToLower().ToCharArray();
            char[] secondCharsArray = v2.ToLower().ToCharArray();
            //Sort array  
            Array.Sort(firstCharsArray);
            Array.Sort(secondCharsArray);
            //Check each character and position.  
            for (int i = 0; i < firstCharsArray.Length; i++)
            {
                if (firstCharsArray[i].ToString().ToLower() != secondCharsArray[i].ToString().ToLower())
                {
                    return false;
                }
            }
            return true;
        }
    }

}


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