Wrapping std.Io?

test "file handle leak check, fail expected" { const tracker: *FileHandleTracker = try .create(std.testing.io, std.testing.allocator); defer tracker.destroy(); var tmp = std.testing.tmpDir(.{}); defer tmp.cleanup(); _ = try tmp.dir.createFile(tracker.io, "temp", .{}); try std.testing.expectError(error.FileLeaked, tracker.check()); } test "file handle leak check, success expected" { const tracker: *FileHandleTracker = try .create(std.testing.io, std.testing.alloca...