public void FileDialogCustomPlacesCollection_Add_Guid_Success(Guid knownFolderGuid)
        {
            var collection = new FileDialogCustomPlacesCollection();

            collection.Add(knownFolderGuid);
            FileDialogCustomPlace place = Assert.Single(collection);

            Assert.Equal(knownFolderGuid, place.KnownFolderGuid);
            Assert.Empty(place.Path);
        }
        public void FileDialogCustomPlacesCollection_Add_String_Success(string path)
        {
            var collection = new FileDialogCustomPlacesCollection();

            collection.Add(path);
            FileDialogCustomPlace place = Assert.Single(collection);

            Assert.Equal(Guid.Empty, place.KnownFolderGuid);
            Assert.Same(path ?? string.Empty, place.Path);
        }