use IsTextFile to respect text file convention from EmptyFiles

docs/naming.md

@@ -673,6 +673,8 @@ Debug.WriteLine(Namer.RuntimeAndVersion);
  * `type`: The class the test method exists in.
  * `method`: The test method.
 
+Any value provided in [UseDirectory](#directory) will take precedence over the value provided in `PathInfo.Directory`.
+
 Return null to any of the values to use the standard behavior. The returned path can be relative to the directory sourceFile exists in.
 
 `DerivePathInfo` can also be useful when deriving the storage directory on a [build server](build-server.md#custom-directory-and-file-name)

src/Directory.Packages.props

@@ -7,7 +7,7 @@
     <PackageVersion Include="Argon" Version="0.26.0" />
     <PackageVersion Include="Argon.FSharp" Version="0.26.0" />
     <PackageVersion Include="BenchmarkDotNet" Version="0.14.0" />
-    <PackageVersion Include="DiffEngine" Version="15.6.0" />
+    <PackageVersion Include="DiffEngine" Version="15.7.0" />
     <PackageVersion Include="Expecto" Version="10.2.1" />
     <PackageVersion Include="Fixie" Version="4.1.0" />
     <PackageVersion Include="Fixie.TestAdapter" Version="4.1.0" />

src/Verify/Verifier/InnerVerifier_Directory.cs

@@ -108,15 +108,16 @@ async Task<List<Target>> ToTargets(
 
     static async Task<Target> TargetFromFile(string path, string relativePath, FileScrubber? fileScrubber, Func<Stream> openStream)
     {
-        if (!TryGetExtension(path, out var extension))
+        var extension = Path
+            .GetExtension(path)
+            .Replace(".", string.Empty);
+
+        if (extension.Length == 0)
         {
-            return new(
-                "noextension",
-                openStream(),
-                relativePath);
+            extension = "noextension";
         }
 
-        if (FileExtensions.IsTextExtension(extension))
+        if (FileExtensions.IsTextFile(path))
         {
             using var stream = openStream();
             var builder = await stream.ReadStringBuilderWithFixedLines();
@@ -132,12 +133,4 @@ static async Task<Target> TargetFromFile(string path, string relativePath, FileS
             openStream(),
             relativePath);
     }
-
-    static bool TryGetExtension(string path, [NotNullWhen(true)] out string? extension)
-    {
-        extension = Path
-            .GetExtension(path)
-            .Replace(".", string.Empty);
-        return extension.Length > 0;
-    }
 }