The Root property would crash on a relative path

Author: dennisdoomen

Pathy.ApiVerificationTests/Pathy.ApiVerificationTests.csproj

@@ -13,7 +13,7 @@
     </PackageReference>
     <PackageReference Include="PublicApiGenerator" Version="11.5.0" />
     <PackageReference Include="Verify.DiffPlex" Version="3.1.2" />
-    <PackageReference Include="Verify.Xunit" Version="31.0.3" />
+    <PackageReference Include="Verify.Xunit" Version="31.0.5" />
   </ItemGroup>
 
   <ItemGroup>

Pathy.Specs/ChainablePathSpecs.cs

@@ -331,6 +331,16 @@ public void Can_get_the_root()
         path.Root.ToString().Should().Be(Path.GetPathRoot(path.ToString()));
     }
 
+    [Fact]
+    public void Cannot_get_the_root_of_a_relative_path()
+    {
+        // Act
+        var path = ChainablePath.From("temp/somefile.txt");
+
+        // Assert
+        path.Root.ToString().Should().Be(ChainablePath.Null);
+    }
+
     [Theory]
     [InlineData("C:\\temp\\")]
     [InlineData("C:\\temp")]

Pathy.Specs/Pathy.Specs.csproj

@@ -18,7 +18,7 @@
 
     <ItemGroup>
       <PackageReference Include="xunit" Version="2.9.3" />
-      <PackageReference Include="FluentAssertions" Version="8.7.1" />
+      <PackageReference Include="FluentAssertions" Version="8.8.0" />
       <PackageReference Include="JetBrains.Annotations" Version="2025.2.2" />
       <PackageReference Include="coverlet.collector" Version="6.0.4" PrivateAssets="all">
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

Pathy/ChainablePath.cs

@@ -359,7 +359,7 @@ public string Extension
         /// <summary>
         /// Gets the root directory of the current path.
         /// </summary>
-        public ChainablePath Root => From(Path.GetPathRoot(path));
+        public ChainablePath Root => Path.IsPathRooted(path) ? From(Path.GetPathRoot(path)) : Null;
 
         /// <summary>
         /// Gets a value indicating whether the path represented by the current object points to an existing file.