More update code. almost there.

NzbDrone.Common/EnviromentProvider.cs

@@ -63,7 +63,7 @@ namespace NzbDrone.Common
             }
         }
 
-        
+
         public virtual string StartUpPath
         {
             get
@@ -92,7 +92,19 @@ namespace NzbDrone.Common
                 var fileLocation = Assembly.GetCallingAssembly().Location;
                 return new FileInfo(fileLocation).CreationTime;
             }
+        }
 
+        public virtual int NzbDroneProcessIdFromEnviroment
+        {
+            get
+            {
+                var id = Convert.ToInt32(Environment.GetEnvironmentVariable("NZBDRONE_PID"));
+
+                if (id == 0)
+                    throw new InvalidOperationException("NZBDRONE_PID isn't a valid environment variable.");
+
+                return id;
+            }
         }
 
         private static bool ContainsIIS(DirectoryInfo dir)

NzbDrone.Core/CentralDispatch.cs

@@ -120,7 +120,7 @@ namespace NzbDrone.Core
         {
             try
             {
-                var pid = Convert.ToInt32(Environment.GetEnvironmentVariable("NZBDRONE_PID"));
+                var pid = new EnviromentProvider().NzbDroneProcessIdFromEnviroment;
 
                 Logger.Debug("Attaching to parent process ({0}) for automatic termination.", pid);
 

NzbDrone.Update.Test/NzbDrone.Update.Test.csproj

@@ -67,8 +67,9 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="UpdateProviderVerifyTest.cs" />
+    <Compile Include="ProgramFixture.cs" />
-    <Compile Include="UpdateProviderStartTest.cs" />
+    <Compile Include="UpdateProviderVerifyFixture.cs" />
+    <Compile Include="UpdateProviderStartFixture.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>

NzbDrone.Update.Test/ProgramFixture.cs

@@ -0,0 +1,72 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using FluentAssertions;
+using Moq;
+using NUnit.Framework;
+using NzbDrone.Common;
+using NzbDrone.Common.Model;
+using NzbDrone.Test.Common;
+using NzbDrone.Update.Providers;
+
+namespace NzbDrone.Update.Test
+{
+    [TestFixture]
+    public class ProgramFixture : TestBase
+    {
+        private Program _program;
+
+        [SetUp]
+        public void Setup()
+        {
+            _program = Mocker.Resolve<Program>();
+        }
+
+        [Test]
+        public void should_throw_if_null_passed_in()
+        {
+            Assert.Throws<ArgumentException>(() => _program.Start(null));
+        }
+
+        [Test]
+        public void should_throw_if_less_than_two_arguments_arent_passed_in()
+        {
+            Assert.Throws<ArgumentException>(() => _program.Start(new[] { "" }));
+        }
+
+        [Test]
+        public void should_throw_if_more_than_two_arguments_arent_passed_in()
+        {
+            Assert.Throws<ArgumentException>(() => _program.Start(new[] { "", "", "" }));
+        }
+
+        [TestCase("d", "")]
+        [TestCase("", "")]
+        [TestCase("0", "")]
+        [TestCase("-1", "")]
+        [TestCase(" ", "")]
+        [TestCase(".", "")]
+        public void should_throw_if_first_arg_isnt_an_int(string arg1, string arg2)
+        {
+            Assert.Throws<ArgumentOutOfRangeException>(() => _program.Start(new[] { arg1, arg2 }));
+        }
+
+        [Test]
+        public void should_call_update_with_corret_path()
+        {
+            const string ProcessPath = @"C:\NzbDrone\nzbdrone.exe";
+
+            Mocker.GetMock<ProcessProvider>().Setup(c => c.GetProcessById(12))
+                .Returns(new ProcessInfo() { StartPath = ProcessPath });
+
+            //Act
+            _program.Start(new[] { "12", "" });
+
+            //Assert
+            Mocker.GetMock<UpdateProvider>().Verify(c => c.Start(ProcessPath), Times.Once());
+        }
+
+
+    }
+}

NzbDrone.Update.Test/UpdateProviderStartFixture.cs

@@ -11,7 +11,7 @@ using NzbDrone.Update.Providers;
 namespace NzbDrone.Update.Test
 {
     [TestFixture]
-    class UpdateProviderStartTest : TestBase
+    class UpdateProviderStartFixture : TestBase
     {
         private const string UPDATE_FOLDER = @"C:\Temp\nzbdrone_update\nzbdrone\";
         private const string BACKUP_FOLDER = @"C:\Temp\nzbdrone_update\nzbdrone_backup\";

NzbDrone.Update.Test/UpdateProviderVerifyFixture.cs

@@ -12,7 +12,7 @@ using NzbDrone.Update.Providers;
 namespace NzbDrone.Update.Test
 {
     [TestFixture]
-    class UpdateProviderVerifyTest : TestBase
+    class UpdateProviderVerifyFixture : TestBase
     {
 
         AutoMoqer mocker = new AutoMoqer();

NzbDrone.Update/Program.cs

@@ -1,15 +1,78 @@
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Text;
+using NLog;
+using NzbDrone.Common;
+using NzbDrone.Update.Providers;
 
 namespace NzbDrone.Update
 {
-    class Program
+    public class Program
     {
-        static void Main(string[] args)
+        private readonly UpdateProvider _updateProvider;
+        private readonly ProcessProvider _processProvider;
+
+        private static readonly Logger logger = LogManager.GetCurrentClassLogger();
+
+        public Program(UpdateProvider updateProvider, ProcessProvider processProvider)
         {
-            
+            _updateProvider = updateProvider;
+            _processProvider = processProvider;
+        }
+
+        public static void Main(string[] args)
+        {
+            try
+            {
+                Console.WriteLine("Starting NzbDrone Update Client");
+
+                LogConfiguration.RegisterConsoleLogger(LogLevel.Trace);
+                LogConfiguration.RegisterUdpLogger();
+                LogConfiguration.RegisterExceptioneer();
+                LogConfiguration.Reload();
+
+                logger.Info("Initializing update application");
+
+                var enviromentProvider = new EnviromentProvider();
+                var processProvider = new ProcessProvider();
+                var serviceProvider = new ServiceProvider();
+                var diskProvider = new DiskProvider();
+
+                var updateProvider = new UpdateProvider(diskProvider, serviceProvider, processProvider, enviromentProvider);
+
+                new Program(updateProvider, processProvider).Start(args);
+            }
+            catch (Exception e)
+            {
+                logger.Fatal("An error has occurred while applying update.", e);
+            }
+        }
+
+        public void Start(string[] args)
+        {
+            VerfityArguments(args);
+            int processId = ParseProcessId(args);
+
+            string appPath = _processProvider.GetProcessById(processId).StartPath;
+
+            logger.Info("Starting update process");
+            _updateProvider.Start(appPath);
+        }
+
+        private int ParseProcessId(string[] args)
+        {
+            int id = 0;
+            if (!Int32.TryParse(args[0], out id) || id <= 0)
+            {
+                throw new ArgumentOutOfRangeException("Invalid process id: " + args[0]);
+            }
+
+            return id;
+        }
+
+        private void VerfityArguments(string[] args)
+        {
+            if (args == null || args.Length != 2)
+                throw new ArgumentException("Wrong number of parameters were passed in.");
         }
     }
 }

NzbDrone.Update/Providers/UpdateProvider.cs

@@ -14,7 +14,7 @@ namespace NzbDrone.Update.Providers
         private readonly EnviromentProvider _enviromentProvider;
         private static readonly Logger logger = LogManager.GetCurrentClassLogger();
 
-        public UpdateProvider(DiskProvider diskProvider,ServiceProvider serviceProvider,
+        public UpdateProvider(DiskProvider diskProvider, ServiceProvider serviceProvider,
             ProcessProvider processProvider, EnviromentProvider enviromentProvider)
         {
             _diskProvider = diskProvider;
@@ -23,6 +23,10 @@ namespace NzbDrone.Update.Providers
             _enviromentProvider = enviromentProvider;
         }
 
+        public UpdateProvider()
+        {
+        }
+
         private void Verify(string targetFolder)
         {
             logger.Info("Verifying requirements before update...");
@@ -39,7 +43,7 @@ namespace NzbDrone.Update.Providers
 
         }
 
-        public void Start(string targetFolder)
+        public virtual void Start(string targetFolder)
         {
             Verify(targetFolder);
             bool isService = false;
@@ -49,7 +53,7 @@ namespace NzbDrone.Update.Providers
             {
                 if (_serviceProvider.IsServiceRunning(ServiceProvider.NZBDRONE_SERVICE_NAME))
                 {
-                   isService = true; 
+                    isService = true;
                 }
                 _serviceProvider.Stop(ServiceProvider.NZBDRONE_SERVICE_NAME);
             }