public async Task RemoveFavorites()
{
var user = fillTestDbHelper.Users.LastOrDefault(opt => !opt.Favorites.IsNullOrEmpty());
var favorite = user.Favorites.FirstOrDefault();
await favoritesService.RemoveUserFavoritesAsync(favorite.ChannelId, favorite.ChatId, favorite.ContactId, user.Id);
var actualFavorites = fillTestDbHelper.Users.FirstOrDefault(opt => opt.Id == user.Id).Favorites;
Assert.True(user.Favorites.Count - 1 == actualFavorites.Count);
}