diff --git a/ViberApiLib.Test/Test.cs b/ViberApiLib.Test/Test.cs
index 2f7479c..521372b 100644
--- a/ViberApiLib.Test/Test.cs
+++ b/ViberApiLib.Test/Test.cs
@@ -1,13 +1,305 @@
 using NUnit.Framework;
 using System;
+using System.Collections.Generic;
+
 namespace ViberApiLib.Test
 {
-    [TestFixture()]
+    [TestFixture]
     public class Test
     {
-        [Test()]
-        public void TestCase()
+        private Api api;
+
+        [SetUp]
+        protected void SetUp()
         {
+            api = new Api("testAuthToken", "testBotName", "testAvatarPath");
+        }
+
+        [Test]
+        public void TestSubscribedRequest()
+        {
+            var reqData = @"{
+               ""event"":""subscribed"",
+               ""timestamp"":1457764197627,
+               ""user"":{
+                  ""id"":""01234567890A="",
+                  ""name"":""John McClane"",
+                  ""avatar"":""http://avatar.example.com"",
+                  ""country"":""UK"",
+                  ""language"":""en"",
+                  ""api_version"":1
+               },
+               ""message_token"":4912661846655238145
+            }";
+            var req = api.ParseRequest(reqData.ToString());
+            Assert.IsInstanceOf<SubscribedRequest>(req);
+            Assert.AreEqual(req.Event, "subscribed");
+            Assert.AreEqual(req.TimeStamp, "1457764197627");
+            if (req is SubscribedRequest)
+            {
+                SubscribedRequest dreq = req as SubscribedRequest;
+                Assert.AreEqual(dreq.User.Id, "01234567890A=");
+                Assert.AreEqual(dreq.User.Name, "John McClane");
+                Assert.AreEqual(dreq.User.Avatar, "http://avatar.example.com");
+                Assert.AreEqual(dreq.User.Country, "UK");
+                Assert.AreEqual(dreq.User.Language, "en");
+                Assert.AreEqual(dreq.User.ApiVersion, "1");
+            }
+        }
+
+        [Test]
+        public void TestUnsubscribedRequest()
+        {
+            var reqData = @"{
+               ""event"":""unsubscribed"",
+               ""timestamp"":1457764197627,
+               ""user_id"":""01234567890A="",
+               ""message_token"":4912661846655238145
+            }";
+            var req = api.ParseRequest(reqData.ToString());
+            Assert.IsInstanceOf<UnsubscribedRequest>(req);
+            Assert.AreEqual(req.Event, "unsubscribed");
+            Assert.AreEqual(req.TimeStamp, "1457764197627");
+            if (req is UnsubscribedRequest)
+            {
+                UnsubscribedRequest dreq = req as UnsubscribedRequest;
+                Assert.AreEqual(dreq.UserId, "01234567890A=");
+            }
+        }
+
+        [Test]
+        public void TestMessageRequest()
+        {
+            var reqData = @"{
+                ""event"":""message"",
+                ""timestamp"":1457764197627,
+                ""message_token"":4912661846655238145,
+                ""sender"":{
+                    ""id"":""01234567890A="",
+                    ""name"":""John McClane"",
+                    ""avatar"":""http://avatar.example.com"",
+                    ""country"":""UK"",
+                    ""language"":""en"",
+                    ""api_version"":1
+                },
+                ""message"":{
+                ""type"":""text"",
+                ""text"":""a message to the service"",
+                ""media"":""http://example.com"",
+                ""location"":{
+                    ""lat"":50.76891,
+                    ""lon"":6.11499
+                },
+                ""tracking_data"":""tracking data""
+                }
+            }";
+            var req = api.ParseRequest(reqData.ToString());
+            Assert.IsInstanceOf<MessageRequest>(req);
+            Assert.AreEqual(req.Event, "message");
+            Assert.AreEqual(req.TimeStamp, "1457764197627");
+            if (req is MessageRequest)
+            {
+                MessageRequest dreq = req as MessageRequest;
+
+                Assert.AreEqual(dreq.User.Id, "01234567890A=");
+                Assert.AreEqual(dreq.User.Name, "John McClane");
+                Assert.AreEqual(dreq.User.Avatar, "http://avatar.example.com");
+                Assert.AreEqual(dreq.User.Country, "UK");
+                Assert.AreEqual(dreq.User.Language, "en");
+                Assert.AreEqual(dreq.User.ApiVersion, "1");
+
+                Assert.IsInstanceOf<TextMessage>(dreq.Message);
+                Assert.AreEqual(dreq.Message.Type, "text");
+                Assert.AreEqual(dreq.Message.TrackingData, "tracking data");
+                if (dreq.Message is TextMessage)
+                {
+                    TextMessage dmessage = dreq.Message as TextMessage;
+                    Assert.AreEqual(dmessage.Text, "a message to the service");
+                }
+
+            }
+        }
+
+        [Test]
+        public void TestSeenRequest()
+        {
+            var reqData = @"{
+                ""event"":""seen"",
+                ""timestamp"":1457764197627,
+                ""message_token"":4912661846655238145,
+                ""user_id"":""01234567890A=""
+            }";
+            var req = api.ParseRequest(reqData.ToString());
+            Assert.IsInstanceOf<SeenRequest>(req);
+            Assert.AreEqual(req.Event, "seen");
+            Assert.AreEqual(req.TimeStamp, "1457764197627");
+            if (req is SeenRequest)
+            {
+                SeenRequest dreq = req as SeenRequest;
+                Assert.AreEqual(dreq.UserId, "01234567890A=");
+            }
+        }
+
+        [Test]
+        public void TestConversationStartedRequest()
+        {
+            var reqData = @"{
+                ""event"":""conversation_started"",
+                ""timestamp"":1457764197627,
+                ""message_token"":4912661846655238145,
+                ""type"":""open"",
+                ""context"":""context information"",
+                ""user"":{
+                    ""id"":""01234567890A="",
+                    ""name"":""John McClane"",
+                    ""avatar"":""http://avatar.example.com"",
+                    ""country"":""UK"",
+                    ""language"":""en"",
+                    ""api_version"":1
+                },
+                ""subscribed"":false
+            }";
+            var req = api.ParseRequest(reqData.ToString());
+            Assert.IsInstanceOf<ConversationStartedRequest>(req);
+            Assert.AreEqual(req.Event, "conversation_started");
+            Assert.AreEqual(req.TimeStamp, "1457764197627");
+            if (req is ConversationStartedRequest)
+            {
+                ConversationStartedRequest dreq = req as ConversationStartedRequest;
+                Assert.AreEqual(dreq.User.Id, "01234567890A=");
+                Assert.AreEqual(dreq.User.Name, "John McClane");
+                Assert.AreEqual(dreq.User.Avatar, "http://avatar.example.com");
+                Assert.AreEqual(dreq.User.Country, "UK");
+                Assert.AreEqual(dreq.User.Language, "en");
+                Assert.AreEqual(dreq.User.ApiVersion, "1");
+            }
+        }
+
+        [Test]
+        public void TestDeliveredRequest()
+        {
+            var reqData = @"{
+                ""event"":""delivered"",
+                ""timestamp"":1457764197627,
+                ""message_token"":4912661846655238145,
+                ""user_id"":""01234567890A=""
+            }";
+            var req = api.ParseRequest(reqData.ToString());
+            Assert.IsInstanceOf<DeliveredRequest>(req);
+            Assert.AreEqual(req.Event, "delivered");
+            Assert.AreEqual(req.TimeStamp, "1457764197627");
+            if (req is DeliveredRequest)
+            {
+                DeliveredRequest dreq = req as DeliveredRequest;
+                Assert.AreEqual(dreq.UserId, "01234567890A=");
+            }
+        }
+
+        [Test]
+        public void TestFailedRequest()
+        {
+            var reqData = @"{
+                ""event"":""failed"",
+                ""timestamp"":1457764197627,
+                ""message_token"":4912661846655238145,
+                ""user_id"":""01234567890A="",
+                ""desc"":""failure description""
+            }";
+            var req = api.ParseRequest(reqData.ToString());
+            Assert.IsInstanceOf<FailedRequest>(req);
+            Assert.AreEqual(req.Event, "failed");
+            Assert.AreEqual(req.TimeStamp, "1457764197627");
+            if (req is FailedRequest)
+            {
+                FailedRequest dreq = req as FailedRequest;
+                Assert.AreEqual(dreq.UserId, "01234567890A=");
+            }
+        }
+
+        [Test]
+        public void TestWebhookRequest()
+        {
+            var reqData = @"{
+                ""event"":""webhook"",
+                ""timestamp"":1457764197627,
+                ""message_token"":""241256543215""
+            }";
+            var req = api.ParseRequest(reqData.ToString());
+            Assert.IsInstanceOf<WebhookRequest>(req);
+            Assert.AreEqual(req.Event, "webhook");
+            Assert.AreEqual(req.TimeStamp, "1457764197627");
+        }
+
+        [Test]
+        public void TestRequestThrowsException()
+        {
+            // reqData is missing "event" element.
+            var reqData = @"{
+               ""timestamp"":1457764197627,
+               ""user"":{
+                  ""id"":""01234567890A="",
+                  ""name"":""John McClane"",
+                  ""avatar"":""http://avatar.example.com"",
+                  ""country"":""UK"",
+                  ""language"":""en"",
+                  ""api_version"":1
+               },
+               ""message_token"":4912661846655238145
+            }";
+            try
+            {
+                var req = api.ParseRequest(reqData.ToString());
+                Assert.Fail();
+            }
+            catch (KeyNotFoundException ex)
+            {
+                Assert.IsTrue(ex.Message.Contains("Necessary key of Viber request, \"event\" is not in the request payload."));
+            }
+            catch (Exception)
+            {
+                Assert.Fail();
+            }
+        }
+
+        [Test]
+        public void TestMessageThrowsException()
+        {
+            // reqData is missing "type" in "message".
+            var reqData = @"{
+                ""event"":""message"",
+                ""timestamp"":1457764197627,
+                ""message_token"":4912661846655238145,
+                ""sender"":{
+                    ""id"":""01234567890A="",
+                    ""name"":""John McClane"",
+                    ""avatar"":""http://avatar.example.com"",
+                    ""country"":""UK"",
+                    ""language"":""en"",
+                    ""api_version"":1
+                },
+                ""message"":{
+                    ""text"":""a message to the service"",
+                    ""media"":""http://example.com"",
+                    ""location"":{
+                        ""lat"":50.76891,
+                        ""lon"":6.11499
+                },
+                ""tracking_data"":""tracking data""
+                }
+            }";
+            try
+            {
+                var req = api.ParseRequest(reqData.ToString());
+                Assert.Fail();
+            }
+            catch (KeyNotFoundException ex)
+            {
+                Assert.IsTrue(ex.Message.Contains("Necessary key of Viber message, \"type\" is not in the request payload."));
+            }
+            catch (Exception)
+            {
+                Assert.Fail();
+            }
         }
     }
 }
diff --git a/ViberApiLib.Test/ViberApiLib.Test.csproj b/ViberApiLib.Test/ViberApiLib.Test.csproj
index 629eefa..2a18e47 100644
--- a/ViberApiLib.Test/ViberApiLib.Test.csproj
+++ b/ViberApiLib.Test/ViberApiLib.Test.csproj
@@ -36,5 +36,11 @@
   <ItemGroup>
     <None Include="packages.config" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\ViberApiLib\ViberApiLib.csproj">
+      <Project>{E57AF7FF-2904-4B20-92AA-C2B4A4C91A7C}</Project>
+      <Name>ViberApiLib</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file