public void AddFriends_AddFriendsModelToPackage_ReturnFriends()
{
//arrange
Package package = _data.GetCustomPackage();
package.Friends = null;
_mock.Setup(s => s.Package.Get(It.IsAny <int>()))
.Returns(package);
_mock.Setup(s => s.Package.GetPackageWithFriends(It.IsAny <int>()))
.Returns(_data.GetCustomPackage());
_manager = new PackageManager(_mock.Object);
//act
var res = _manager.AddFriends(1, _data.GetFriends());
//assert
Assert.IsNotNull(res);
}
