Add tests for GetUuid

Emby.Dlna/PlayTo/PlayToManager.cs

@@ -3,13 +3,11 @@
 using System;
 using System.Globalization;
 using System.Linq;
-using System.Net;
 using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
 using Jellyfin.Data.Events;
 using MediaBrowser.Common.Extensions;
-using MediaBrowser.Common.Net;
 using MediaBrowser.Controller;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Dlna;
@@ -130,24 +128,36 @@ namespace Emby.Dlna.PlayTo
             }
         }
 
-        private static string GetUuid(string usn)
+        internal static string GetUuid(string usn)
         {
             const string UuidStr = "uuid:";
             const string UuidColonStr = "::";
 
             var index = usn.IndexOf(UuidStr, StringComparison.OrdinalIgnoreCase);
+            if (index == -1)
+            {
+                return usn.GetMD5().ToString("N", CultureInfo.InvariantCulture);
+            }
+
+            ReadOnlySpan<char> tmp = usn.AsSpan()[(index + UuidStr.Length)..];
+
+            index = tmp.IndexOf(UuidColonStr, StringComparison.OrdinalIgnoreCase);
             if (index != -1)
             {
-                return usn.Substring(index + UuidStr.Length);
+                tmp = tmp[..index];
             }
 
-            index = usn.IndexOf(UuidColonStr, StringComparison.OrdinalIgnoreCase);
+            index = tmp.IndexOf('{');
             if (index != -1)
             {
-                usn = usn.Substring(0, index + UuidColonStr.Length);
+                int endIndex = tmp.IndexOf('}');
+                if (endIndex != -1)
+                {
+                    tmp = tmp[(index + 1)..endIndex];
+                }
             }
 
-            return usn.GetMD5().ToString("N", CultureInfo.InvariantCulture);
+            return tmp.ToString();
         }
 
         private async Task AddDevice(UpnpDeviceInfo info, string location, CancellationToken cancellationToken)

Emby.Dlna/Properties/AssemblyInfo.cs

@@ -1,5 +1,6 @@
 using System.Reflection;
 using System.Resources;
+using System.Runtime.CompilerServices;
 
 // General Information about an assembly is controlled through the following
 // set of attributes. Change these attribute values to modify the information
@@ -13,6 +14,7 @@ using System.Resources;
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 [assembly: NeutralResourcesLanguage("en")]
+[assembly: InternalsVisibleTo("Jellyfin.Dlna.Tests")]
 
 // Version information for an assembly consists of the following four values:
 //

MediaBrowser.sln

@@ -1,4 +1,4 @@
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 16
 VisualStudioVersion = 16.0.30503.244
 MinimumVisualStudioVersion = 10.0.40219.1
@@ -70,6 +70,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Jellyfin.Networking", "Jell
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Jellyfin.Networking.Tests", "tests\Jellyfin.Networking.Tests\NetworkTesting\Jellyfin.Networking.Tests.csproj", "{42816EA8-4511-4CBF-A9C7-7791D5DDDAE6}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Jellyfin.Dlna.Tests", "tests\Jellyfin.Dlna.Tests\Jellyfin.Dlna.Tests.csproj", "{B8AE4B9D-E8D3-4B03-A95E-7FD8CECECC50}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -188,6 +190,10 @@ Global
 		{42816EA8-4511-4CBF-A9C7-7791D5DDDAE6}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{42816EA8-4511-4CBF-A9C7-7791D5DDDAE6}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{42816EA8-4511-4CBF-A9C7-7791D5DDDAE6}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B8AE4B9D-E8D3-4B03-A95E-7FD8CECECC50}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B8AE4B9D-E8D3-4B03-A95E-7FD8CECECC50}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B8AE4B9D-E8D3-4B03-A95E-7FD8CECECC50}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B8AE4B9D-E8D3-4B03-A95E-7FD8CECECC50}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -200,6 +206,7 @@ Global
 		{2E3A1B4B-4225-4AAA-8B29-0181A84E7AEE} = {FBBB5129-006E-4AD7-BAD5-8B7CA1D10ED6}
 		{462584F7-5023-4019-9EAC-B98CA458C0A0} = {FBBB5129-006E-4AD7-BAD5-8B7CA1D10ED6}
 		{42816EA8-4511-4CBF-A9C7-7791D5DDDAE6} = {FBBB5129-006E-4AD7-BAD5-8B7CA1D10ED6}
+		{B8AE4B9D-E8D3-4B03-A95E-7FD8CECECC50} = {FBBB5129-006E-4AD7-BAD5-8B7CA1D10ED6}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {3448830C-EBDC-426C-85CD-7BBB9651A7FE}

tests/Jellyfin.Dlna.Tests/GetUuidTests.cs

@@ -0,0 +1,17 @@
+using Emby.Dlna.PlayTo;
+using Xunit;
+
+namespace Jellyfin.Dlna.Tests
+{
+    public static class GetUuidTests
+    {
+        [Theory]
+        [InlineData("uuid:fc4ec57e-b051-11db-88f8-0060085db3f6::urn:schemas-upnp-org:device:WANDevice:1", "fc4ec57e-b051-11db-88f8-0060085db3f6")]
+        [InlineData("uuid:IGD{8c80f73f-4ba0-45fa-835d-042505d052be}000000000000", "8c80f73f-4ba0-45fa-835d-042505d052be")]
+        [InlineData("uuid:IGD{8c80f73f-4ba0-45fa-835d-042505d052be}000000000000::urn:schemas-upnp-org:device:InternetGatewayDevice:1", "8c80f73f-4ba0-45fa-835d-042505d052be")]
+        [InlineData("uuid:00000000-0000-0000-0000-000000000000::upnp:rootdevice", "00000000-0000-0000-0000-000000000000")]
+        [InlineData("uuid:fc4ec57e-b051-11db-88f8-0060085db3f6", "fc4ec57e-b051-11db-88f8-0060085db3f6")]
+        public static void GetUuid_Valid_Success(string usn, string uuid)
+            => Assert.Equal(uuid, PlayToManager.GetUuid(usn));
+    }
+}

tests/Jellyfin.Dlna.Tests/Jellyfin.Dlna.Tests.csproj

@@ -0,0 +1,33 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <IsPackable>false</IsPackable>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.0" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
+    <PackageReference Include="coverlet.collector" Version="1.3.0" />
+  </ItemGroup>
+
+  <!-- Code Analyzers -->
+  <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8" PrivateAssets="All" />
+    <PackageReference Include="SerilogAnalyzer" Version="0.15.0" PrivateAssets="All" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="All" />
+    <PackageReference Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" PrivateAssets="All" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="../../Emby.Dlna/Emby.Dlna.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <CodeAnalysisRuleSet>../jellyfin-tests.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+
+</Project>