public Delay50MsNoFiltering() {
                _fileSystem = Substitute.For<IFileSystem>();
                var watchers = GetWatchersFromMsBuildFileSystemWatcher(_fileSystem);

                _fileSystemFilter = Substitute.For<IMsBuildFileSystemFilter>();
                _fileSystemFilter.IsFileAllowed(Arg.Any<string>(), Arg.Any<FileAttributes>()).ReturnsForAnyArgs(true);
                _fileSystemFilter.IsDirectoryAllowed(Arg.Any<string>(), Arg.Any<FileAttributes>()).ReturnsForAnyArgs(true);

                _taskScheduler = new ControlledTaskScheduler(SynchronizationContext.Current);

                _fileSystemWatcher = new MsBuildFileSystemWatcher(ProjectDirectory, "*", 50, 50, _fileSystem, _fileSystemFilter, Substitute.For<IActionLog>(), _taskScheduler);
                _taskScheduler.Link(_fileSystemWatcher.SourceBlock, c => { _changeset = c; });

                _fileSystemWatcher.Start();
                _fileWatcher = watchers.FileWatcher;
                _directoryWatcher = watchers.DirectoryWatcher;
                _attributesWatcher = watchers.AttributesWatcher;
            }