public void By_Methods__Take_And_Return_A_List_of_Friends()
{
OrderFriends.ByName(new List <Friend>()).Should().BeOfType <List <Friend> >();
OrderFriends.ByOnlineStatus(new List <Friend>()).Should().BeOfType <List <Friend> >();
OrderFriends.ByLastSeen(new List <Friend>()).Should().BeOfType <List <Friend> >();
OrderFriends.ByLevel(new List <Friend>()).Should().BeOfType <List <Friend> >();
}
public void ByOnlineStatus__Sort_By_Online_Friends_First()
{
var newFriendsOrder = OrderFriends.ByOnlineStatus(_friends);
newFriendsOrder.Should().BeInAscendingOrder(friend => friend.IsOnline);
}