fix: fixed the Git root searching plus added tests

.gitlab/test.sh

@@ -1,7 +1,5 @@
-#dotnet test --test-adapter-path:. --logger:"junit;LogFilePath=../artifacts/{assembly}-test-result.xml;MethodFormat=Default;FailureBodyFormat=Verbose" --collect:"XPlat Code Coverage"
+dotnet test --test-adapter-path:. --logger:"junit;LogFilePath=../artifacts/{assembly}-test-result.xml;MethodFormat=Default;FailureBodyFormat=Verbose" --collect:"XPlat Code Coverage"
-#dotnet new tool-manifest
+dotnet new tool-manifest
-#dotnet tool install dotnet-reportgenerator-globaltool
+dotnet tool install dotnet-reportgenerator-globaltool
-#dotnet tool run reportgenerator -reports:tests/*/TestResults/*/coverage.cobertura.xml -targetdir:./coverage "-reporttypes:Cobertura;TextSummary"
+dotnet tool run reportgenerator -reports:tests/*/TestResults/*/coverage.cobertura.xml -targetdir:./coverage "-reporttypes:Cobertura;TextSummary"
-#grep "Line coverage" coverage/Summary.txt
+grep "Line coverage" coverage/Summary.txt
-
-echo "Line coverage 0.00%"

MfGames.IO.sln

@@ -7,6 +7,10 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{1C957FCA-B9A
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MfGames.IO", "src\MfGames.IO\MfGames.IO.csproj", "{D4386FAC-E9E0-4FBF-9423-5F3699F19920}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tests", "tests", "{6F7CE793-DD94-4AD7-B3CB-94ECF2BA77A6}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MfGames.IO.Tests", "tests\MfGames.IO.Tests\MfGames.IO.Tests.csproj", "{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -32,8 +36,21 @@ Global
 		{D4386FAC-E9E0-4FBF-9423-5F3699F19920}.Release|x64.Build.0 = Release|Any CPU
 		{D4386FAC-E9E0-4FBF-9423-5F3699F19920}.Release|x86.ActiveCfg = Release|Any CPU
 		{D4386FAC-E9E0-4FBF-9423-5F3699F19920}.Release|x86.Build.0 = Release|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Debug|x64.Build.0 = Debug|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Debug|x86.Build.0 = Debug|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Release|Any CPU.Build.0 = Release|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Release|x64.ActiveCfg = Release|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Release|x64.Build.0 = Release|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Release|x86.ActiveCfg = Release|Any CPU
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{D4386FAC-E9E0-4FBF-9423-5F3699F19920} = {1C957FCA-B9AA-4A64-BF20-E215EAE5C4E4}
+		{4E3B0E55-A1A0-4007-8CF2-C02396FBBB22} = {6F7CE793-DD94-4AD7-B3CB-94ECF2BA77A6}
 	EndGlobalSection
 EndGlobal

README.md

@@ -90,3 +90,13 @@ The same as `File.WriteAllText(file.GetFullPath, text)`.
 #### `void WriteAllText(this FileInfo file, string text, Encoding encoding)`
 
 The same as `File.WriteAllText(file.GetFullPath, text, encoding)`.
+
+### Type Extensions
+
+#### `DirectoryInfo? GetDirectory(this Type? type)`
+
+Gets a directory containing the type's assembly directory.
+
+#### `FileInfo? GetFile(this Type? type)`
+
+Gets a file representing the type's assembly's `Location` property or null.

src/MfGames.IO/Extensions/DirectoryInfoExtensions.cs

@@ -86,7 +86,7 @@ namespace MfGames.IO.Extensions
                 // If the directory is null, just return null. Same with
                 // non-existing directories. We don't use directory.Exists here
                 // because it seems to be cached and we get incorrect data.
-                if (directory == null || !File.Exists(directory.FullName))
+                if (directory == null || !Directory.Exists(directory.FullName))
                 {
                     return null;
                 }

src/MfGames.IO/Extensions/TypeExtensions.cs

@@ -0,0 +1,31 @@
+using System;
+using System.IO;
+
+namespace MfGames.IO.Extensions
+{
+    /// <summary>
+    /// Additional methods for types.
+    /// </summary>
+    public static class TypeExtensions
+    {
+        /// <summary>
+        /// Gets the directory for a given type.
+        /// </summary>
+        /// <param name="type">The type assembly to get the directory.</param>
+        /// <returns>The directory or null if the assembly or location is null.</returns>
+        public static DirectoryInfo? GetDirectory(this Type? type)
+        {
+            return type?.Assembly.GetDirectory();
+        }
+
+        /// <summary>
+        /// Gets the file for a given type's assembly.
+        /// </summary>
+        /// <param name="type">The type assembly to get the directory.</param>
+        /// <returns>The directory or null if the assembly or location is null.</returns>
+        public static FileInfo? GetFile(this Type? type)
+        {
+            return type?.Assembly.GetFile();
+        }
+    }
+}

tests/MfGames.IO.Tests/AssemblyExtensionsTests.cs

@@ -0,0 +1,29 @@
+using System.IO;
+
+using MfGames.IO.Extensions;
+
+using Xunit;
+
+namespace MfGames.IO.Tests
+{
+    public class AssemblyExtensionsTests
+    {
+        [Fact]
+        public void DirectoryExists()
+        {
+            DirectoryInfo? dir = this.GetType().Assembly.GetDirectory();
+
+            Assert.NotNull(dir);
+            Assert.True(dir!.Exists);
+        }
+
+        [Fact]
+        public void FileExists()
+        {
+            FileInfo? file = this.GetType().Assembly.GetFile();
+
+            Assert.NotNull(file);
+            Assert.True(file!.Exists);
+        }
+    }
+}

tests/MfGames.IO.Tests/GitRootTests.cs

@@ -0,0 +1,21 @@
+using System.IO;
+
+using MfGames.IO.Extensions;
+
+using Xunit;
+
+namespace MfGames.IO.Tests
+{
+    public class GitRootTests
+    {
+        [Fact]
+        public void FindGitRoot()
+        {
+            DirectoryInfo? dir = this.GetType().GetDirectory();
+            DirectoryInfo? git = dir.FindGitRoot();
+
+            Assert.NotNull(git);
+            Assert.True(git!.GetDirectories(".git").Length > 0);
+        }
+    }
+}

tests/MfGames.IO.Tests/MfGames.IO.Tests.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="coverlet.collector" Version="3.0.3">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\MfGames.IO\MfGames.IO.csproj" />
+  </ItemGroup>
+
+</Project>