IoTests: fix warnings
MODIFY
WalletWasabi.Tests/UnitTests/IoTests.cs
WalletWasabi.Tests/UnitTests/IoTests.cs
@@ -112,7 +112,7 @@ public class IoTests
Assert.False(ioman1.Exists());
// Check if directory is empty.
- var fileCount = Directory.EnumerateFiles(Path.GetDirectoryName(ioman1.FilePath)).Count();
+ var fileCount = Directory.EnumerateFiles(Path.GetDirectoryName(ioman1.FilePath)!).Count();
Assert.Equal(0, fileCount);
// TryReplace test.

IoTests: fix warnings