diff --git a/Test/SourceExpander.Generator.Test/Generate/Config/ConfigTest.cs b/Test/SourceExpander.Generator.Test/Generate/Config/ConfigTest.cs
index 9cd3458..cf9548f 100644
--- a/Test/SourceExpander.Generator.Test/Generate/Config/ConfigTest.cs
+++ b/Test/SourceExpander.Generator.Test/Generate/Config/ConfigTest.cs
@@ -6,7 +6,7 @@ namespace SourceExpander.Generate.Config
 {
     public class ConfigTest : ExpandGeneratorTestBase
     {
-        public static readonly TheoryData ParseErrorJsons = new TheoryData<InMemorySourceText, object[]>
+        public static readonly TheoryData<InMemorySourceText, object[]> ParseErrorJsons = new()
         {
             {
                 new InMemorySourceText("/foo/bar/SourceExpander.Generator.Config.json", """
diff --git a/Test/Utils/InMemorySourceText.cs b/Test/Utils/InMemorySourceText.cs
index b4f7c6d..f2070cc 100644
--- a/Test/Utils/InMemorySourceText.cs
+++ b/Test/Utils/InMemorySourceText.cs
@@ -5,16 +5,12 @@
 
 namespace SourceExpander
 {
-    public class InMemorySourceText : AdditionalText
+    public class InMemorySourceText(string path, string source, Encoding encoding) : AdditionalText
     {
         public InMemorySourceText(string path, string source) : this(path, source, new UTF8Encoding(false)) { }
-        public InMemorySourceText(string path, string source, Encoding encoding)
-        {
-            Path = path;
-            sourceText = SourceText.From(source, encoding);
-        }
-        public override string Path { get; }
-        private readonly SourceText sourceText;
+
+        public override string Path { get; } = path;
+        private readonly SourceText sourceText = SourceText.From(source, encoding);
         public override SourceText GetText(CancellationToken cancellationToken = default) => sourceText;
         public static implicit operator (string filename, SourceText content)(InMemorySourceText at)
             => (at.Path, at.sourceText);