diff --git a/TelegramBotBaseTest/Tests/Groups/GroupChange.cs b/TelegramBotBaseTest/Tests/Groups/GroupChange.cs
new file mode 100644
index 0000000..3c2cc42
--- /dev/null
+++ b/TelegramBotBaseTest/Tests/Groups/GroupChange.cs
@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBaseTest.Tests.Groups
+{
+    public class GroupChange : TelegramBotBase.Form.GroupForm
+    {
+        public GroupChange()
+        {
+            this.Opened += GroupChange_Opened;
+        }
+
+
+        private async Task GroupChange_Opened(object sender, EventArgs e)
+        {
+
+            ButtonForm bf = new ButtonForm();
+
+            bf.AddButtonRow(new ButtonBase("Open GroupChange Test", "groupchange"));
+            bf.AddButtonRow(new ButtonBase("Open WelcomeUser Test", "welcomeuser"));
+            bf.AddButtonRow(new ButtonBase("Open LinkReplace Test", "linkreplace"));
+
+            await this.Device.Send("GroupChange started, click to switch", bf);
+
+        }
+
+        public override async Task Action(MessageResult message)
+        {
+            if (message.Handled)
+                return;
+
+
+            var bn = message.RawData;
+
+            await message.ConfirmAction();
+            message.Handled = true;
+
+            switch (bn)
+            {
+                case "groupchange":
+
+                    var gc = new GroupChange();
+
+                    await this.NavigateTo(gc);
+
+                    break;
+                case "welcomeuser":
+
+                    var wu = new WelcomeUser();
+
+                    await this.NavigateTo(wu);
+
+                    break;
+                case "linkreplace":
+
+                    var lr = new LinkReplaceTest();
+
+                    await this.NavigateTo(lr);
+
+                    break;
+            }
+
+        }
+
+        public override async Task OnGroupChanged(GroupChangedEventArgs e)
+        {
+            await this.Device.Send("Group has been changed by " + e.OriginalMessage.Message.From.FirstName + " " + e.OriginalMessage.Message.From.LastName);
+        }
+
+    }
+}
diff --git a/TelegramBotBaseTest/Tests/Groups/LinkReplaceTest.cs b/TelegramBotBaseTest/Tests/Groups/LinkReplaceTest.cs
new file mode 100644
index 0000000..c7ef39f
--- /dev/null
+++ b/TelegramBotBaseTest/Tests/Groups/LinkReplaceTest.cs
@@ -0,0 +1,155 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using Telegram.Bot.Types;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBaseTest.Tests.Groups
+{
+    public class LinkReplaceTest : TelegramBotBase.Form.GroupForm
+    {
+
+        Dictionary<int, int> Counter { get; set; } = new Dictionary<int, int>();
+
+        private const int Maximum = 3;
+
+
+        public LinkReplaceTest()
+        {
+            this.Opened += LinkReplaceTest_Opened;
+        }
+
+        private async Task LinkReplaceTest_Opened(object sender, EventArgs e)
+        {
+
+            ButtonForm bf = new ButtonForm();
+
+            bf.AddButtonRow(new ButtonBase("Open GroupChange Test", "groupchange"));
+            bf.AddButtonRow(new ButtonBase("Open WelcomeUser Test", "welcomeuser"));
+            bf.AddButtonRow(new ButtonBase("Open LinkReplace Test", "linkreplace"));
+
+            await this.Device.Send("LinkReplaceTest started, click to switch", bf);
+
+        }
+
+        public override async Task Action(MessageResult message)
+        {
+            if (message.Handled)
+                return;
+
+            var bn = message.RawData;
+
+            await message.ConfirmAction();
+            message.Handled = true;
+
+            switch (bn)
+            {
+                case "groupchange":
+
+                    var gc = new GroupChange();
+
+                    await this.NavigateTo(gc);
+
+                    break;
+                case "welcomeuser":
+
+                    var wu = new WelcomeUser();
+
+                    await this.NavigateTo(wu);
+
+                    break;
+                case "linkreplace":
+
+                    var lr = new LinkReplaceTest();
+
+                    await this.NavigateTo(lr);
+
+                    break;
+            }
+
+        }
+
+        public override async Task OnMessage(MessageResult e)
+        {
+            var from = e.Message.From.Id;
+
+            if (e.Message.From.IsBot)
+                return;
+
+            var u = await Device.GetChatUser(from);
+
+            //Don't kick Admins or Creators
+            if (u.Status == Telegram.Bot.Types.Enums.ChatMemberStatus.Administrator | u.Status == Telegram.Bot.Types.Enums.ChatMemberStatus.Creator)
+            {
+                await this.Device.Send("You won't get kicked,...not this time.");
+                return;
+            }
+
+            //Are urls inside his message ?
+            if (!HasLinks(e.MessageText))
+                return;
+
+
+            await e.Device.DeleteMessage(e.MessageId);
+
+            var cp = new ChatPermissions();
+            cp.CanAddWebPagePreviews = false;
+            cp.CanChangeInfo = false;
+            cp.CanInviteUsers = false;
+            cp.CanPinMessages = false;
+            cp.CanSendMediaMessages = false;
+            cp.CanSendMessages = false;
+            cp.CanSendOtherMessages = false;
+            cp.CanSendPolls = false;
+
+            //Collect user "mistakes" with sending url, after 3 he gets kicked out.
+            if (Counter.ContainsKey(from))
+            {
+                Counter[from]++;
+            }
+            else
+            {
+                Counter[from] = 1;
+            }
+
+
+            if (Counter[from] >= 3)
+            {
+                await e.Device.KickUser(from);
+
+                await e.Device.Send(e.Message.From.FirstName + " " + e.Message.From.LastName + " has been removed from the group");
+            }
+            else
+            {
+                await e.Device.RestrictUser(from, cp, DateTime.UtcNow.AddSeconds(30));
+
+                await e.Device.Send(e.Message.From.FirstName + " " + e.Message.From.LastName + " has been blocked for 30 seconds");
+            }
+
+
+
+        }
+
+        /// <summary>
+        /// https://stackoverflow.com/a/20651284
+        /// </summary>
+        /// <param name="str"></param>
+        /// <returns></returns>
+        private bool HasLinks(String str)
+        {
+            var tmp = str;
+
+            var pattern = @"^(http|https|ftp|)\://|[a-zA-Z0-9\-\.]+\.[a-zA-Z](:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\-\._\?\,\'/\\\+&amp;%\$#\=~])*[^\.\,\)\(\s]$";
+            Regex r = new Regex(pattern);
+
+            var matches = r.Matches(tmp);
+
+            return (matches.Count > 0);
+        }
+
+
+    }
+}
diff --git a/TelegramBotBaseTest/Tests/Groups/WelcomeUser.cs b/TelegramBotBaseTest/Tests/Groups/WelcomeUser.cs
new file mode 100644
index 0000000..ffaa887
--- /dev/null
+++ b/TelegramBotBaseTest/Tests/Groups/WelcomeUser.cs
@@ -0,0 +1,91 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Linq;
+using System.Threading.Tasks;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBaseTest.Tests.Groups
+{
+    public class WelcomeUser : TelegramBotBase.Form.GroupForm
+    {
+
+        public WelcomeUser()
+        {
+            this.Opened += WelcomeUser_Opened;
+        }
+
+
+        private async Task WelcomeUser_Opened(object sender, EventArgs e)
+        {
+
+            ButtonForm bf = new ButtonForm();
+
+            bf.AddButtonRow(new ButtonBase("Open GroupChange Test", "groupchange"));
+            bf.AddButtonRow(new ButtonBase("Open WelcomeUser Test", "welcomeuser"));
+            bf.AddButtonRow(new ButtonBase("Open LinkReplace Test", "linkreplace"));
+
+            await this.Device.Send("WelcomeUser started, click to switch", bf);
+
+        }
+
+        public override async Task Action(MessageResult message)
+        {
+            if (message.Handled)
+                return;
+
+            var bn = message.RawData;
+
+            await message.ConfirmAction();
+            message.Handled = true;
+
+            switch (bn)
+            {
+                case "groupchange":
+
+                    var gc = new GroupChange();
+
+                    await this.NavigateTo(gc);
+
+                    break;
+                case "welcomeuser":
+
+                    var wu = new WelcomeUser();
+
+                    await this.NavigateTo(wu);
+
+                    break;
+                case "linkreplace":
+
+                    var lr = new LinkReplaceTest();
+
+                    await this.NavigateTo(lr);
+
+                    break;
+            }
+
+        }
+
+        public override async Task OnMemberChanges(MemberChangeEventArgs e)
+        {
+
+            if (e.Type == Telegram.Bot.Types.Enums.MessageType.ChatMembersAdded)
+            {
+
+                await this.Device.Send("Welcome you new members!\r\n\r\n" + e.Members.Select(a => a.FirstName + " " + a.LastName).Aggregate((a, b) => a + "\r\n" + b));
+
+            }
+            else if (e.Type == Telegram.Bot.Types.Enums.MessageType.ChatMemberLeft)
+            {
+                await this.Device.Send(e.Members.Select(a => a.FirstName + " " + a.LastName).Aggregate((a, b) => a + " and " + b) + " has left the group");
+
+            }
+
+        }
+
+
+
+
+    }
+}