fix: nullable warning from SonarCloud (#400)

Fix incorrect nullable warning from SonarCloud: ![image](https://github.com/Testably/Testably.Abstractions/assets/3438234/63260aa9-2296-4e2c-9412-ad0121dd7e06)
Testably · Sep 10, 2023 · 22f13f4 · 22f13f4
1 parent f8ffa80
commit 22f13f4
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/Tests/Testably.Abstractions.Tests/FileSystem/DirectoryInfo/Tests.cs b/Tests/Testably.Abstractions.Tests/FileSystem/DirectoryInfo/Tests.cs
@@ -273,9 +273,9 @@ public void Parent_ArbitraryPaths_ShouldNotBeNull(string path1,
 		IDirectoryInfo sut = FileSystem.DirectoryInfo.New(path);
 
 		sut.Parent.Should().NotBeNull();
-		sut.Parent!.Should().NotExist();
-		sut.Parent.Parent.Should().NotBeNull();
-		sut.Parent.Parent!.Should().NotExist();
+		sut.Parent.Should().NotExist();
+		sut.Parent?.Parent.Should().NotBeNull();
+		sut.Parent?.Parent.Should().NotExist();
 	}
 
 	[SkippableFact]