public void Update(Person item)
{
var indexOfItem = GetIndex(item);
var equalityComparer = new PersonEqualityComparer();
var objectHasChanged = !equalityComparer.Equals(item, _persons[indexOfItem]);
if (!objectHasChanged)
{
return;
}
_persons[indexOfItem] = item;
StoreAll();
RaiseEntityModifiedMessage(item, "Person updated in csv storage");
}
public void CheckIfGroupByWorksCorrectly()
{
Person magnus = new Person {
Name = "Magnus"
};
Person terry = new Person {
Name = "Terry"
};
Person charlotte = new Person {
Name = "Charlotte"
};
List <Pet> pets = new List <Pet>
{
new Pet {
Name = "Barley", Owner = magnus
},
new Pet {
Name = "Maddison", Owner = terry
},
new Pet {
Name = "Pudding", Owner = charlotte
},
new Pet {
Name = "Apple", Owner = magnus
},
new Pet {
Name = "Ketchup", Owner = terry
},
new Pet {
Name = "Rufus", Owner = charlotte
},
new Pet {
Name = "Donut", Owner = magnus
},
new Pet {
Name = "Roger", Owner = terry
},
new Pet {
Name = "Kitten", Owner = charlotte
}
};
Func <Pet, Person> ownerSelector = x => x.Owner;
Func <Pet, string> nameSelector = x => x.Name;
Func <Person, IEnumerable <string>, DataStructures.Grouping <Person, string> > resultSelector = (x, y) => new DataStructures.Grouping <Person, string>(x, y);
DataStructures.ListCollection <DataStructures.Grouping <Person, string> > finalGroups = new DataStructures.ListCollection <DataStructures.Grouping <Person, string> >
{
new DataStructures.Grouping <Person, string>(magnus, new DataStructures.ListCollection <string> {
"Barley", "Apple", "Donut"
}),
new DataStructures.Grouping <Person, string>(terry, new DataStructures.ListCollection <string> {
"Maddison", "Ketchup", "Roger"
}),
new DataStructures.Grouping <Person, string>(charlotte, new DataStructures.ListCollection <string> {
"Pudding", "Rufus", "Kitten"
})
};
PersonEqualityComparer comparer = new PersonEqualityComparer();
Assert.Equal(
finalGroups,
DataStructures.LinqFunctions.GroupBy <Pet, Person, string, DataStructures.Grouping <Person, string> >(pets, ownerSelector, nameSelector, resultSelector, comparer));
}