Address comments

Emby.Naming/Audio/AlbumParser.cs

@@ -4,7 +4,6 @@
 using System;
 using System.Globalization;
 using System.IO;
-using System.Linq;
 using System.Text.RegularExpressions;
 using Emby.Naming.Common;
 
@@ -22,8 +21,7 @@ namespace Emby.Naming.Audio
         public bool IsMultiPart(string path)
         {
             var filename = Path.GetFileName(path);
-
-            if (path.Length == 0)
+            if (filename.Length == 0)
             {
                 return false;
             }

Emby.Naming/Subtitles/SubtitleParser.cs

@@ -21,7 +21,7 @@ namespace Emby.Naming.Subtitles
         {
             if (path.Length == 0)
             {
-                throw new ArgumentException("String can't be empty.", nameof(path));
+                throw new ArgumentException("File path can't be empty.", nameof(path));
             }
 
             var extension = Path.GetExtension(path);

tests/Jellyfin.Model.Tests/Extensions/StringHelperTests.cs

@@ -0,0 +1,19 @@
+using System;
+using MediaBrowser.Model.Extensions;
+using Xunit;
+
+namespace Jellyfin.Model.Tests.Extensions
+{
+    public class StringHelperTests
+    {
+        [Theory]
+        [InlineData("", "")]
+        [InlineData("banana", "Banana")]
+        [InlineData("Banana", "Banana")]
+        [InlineData("ä", "Ä")]
+        public void FirstToUpperTest(string str, string result)
+        {
+            Assert.Equal(result, StringHelper.FirstToUpper(str));
+        }
+    }
+}

tests/Jellyfin.Model.Tests/Jellyfin.Model.Tests.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <IsPackable>false</IsPackable>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
+    <PackageReference Include="coverlet.collector" Version="1.2.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="../../MediaBrowser.Model/MediaBrowser.Model.csproj" />
+  </ItemGroup>
+
+</Project>

tests/Jellyfin.Naming.Tests/Music/MultiDiscAlbumTests.cs

@@ -10,6 +10,8 @@ namespace Jellyfin.Naming.Tests.Music
 
         [Theory]
         [InlineData("", false)]
+        [InlineData("C:/", false)]
+        [InlineData("/home/", false)]
         [InlineData(@"blah blah", false)]
         [InlineData(@"D:/music/weezer/03 Pinkerton", false)]
         [InlineData(@"D:/music/michael jackson/Bad (2012 Remaster)", false)]
@@ -38,7 +40,7 @@ namespace Jellyfin.Naming.Tests.Music
         [InlineData(@"D:/Video/MBTestLibrary/VideoTest/music/.38 special/anth/Disc 2", true)]
         [InlineData(@"[1985] Opportunities (Let's make lots of money) (1985)", false)]
         [InlineData(@"Blah 04(Encores and Folk Songs)", false)]
-        public void TestMultiDiscAlbums(string path, bool result)
+        public void AlbumParser_MultidiscPath_Identifies(string path, bool result)
         {
             var parser = new AlbumParser(_namingOptions);
 

tests/Jellyfin.Naming.Tests/Subtitles/SubtitleParserTests.cs

@@ -17,7 +17,7 @@ namespace Jellyfin.Naming.Tests.Subtitles
         [InlineData("The Skin I Live In (2011).eng.foreign.srt", "eng", false, true)]
         [InlineData("The Skin I Live In (2011).eng.default.foreign.srt", "eng", true, true)]
         [InlineData("The Skin I Live In (2011).default.foreign.eng.srt", "eng", true, true)]
-        public void TestSubtitles(string input, string language, bool isDefault, bool isForced)
+        public void SubtitleParser_ValidFileNames_Parses(string input, string language, bool isDefault, bool isForced)
         {
             var parser = new SubtitleParser(_namingOptions);
 
@@ -30,7 +30,7 @@ namespace Jellyfin.Naming.Tests.Subtitles
 
         [Theory]
         [InlineData("The Skin I Live In (2011).mp4")]
-        public void TestNonSubtitles(string input)
+        public void SubtitleParser_InvalidFileNames_ReturnsNull(string input)
         {
             var parser = new SubtitleParser(_namingOptions);
 
@@ -38,7 +38,7 @@ namespace Jellyfin.Naming.Tests.Subtitles
         }
 
         [Fact]
-        public void TestEmptySubtitlesPath()
+        public void SubtitleParser_EmptyFileNames_ThrowsArgumentException()
         {
             Assert.Throws<ArgumentException>(() => new SubtitleParser(_namingOptions).ParseFile(string.Empty));
         }