public void UpdateToSourceSendsReplaceOnDestination()
{
var person = new Person("Adult1", 50);
var anotherPerson = new Person("Adult1", 51);
NotifyCollectionChangedAction action = default;
_source.AddOrUpdate(person);
using (_collection
.ObserveCollectionChanges()
.Select(x => x.EventArgs.Action)
.Subscribe(updateType => action = updateType))
{
_source.AddOrUpdate(anotherPerson);
}
action.Should().Be(NotifyCollectionChangedAction.Replace, "The notification type should be Replace");
}
public void UpdateToSourceSendsReplaceIfSortingIsNotAffected()
{
var person1 = new Person("Adult1", 10);
var person2 = new Person("Adult2", 11);
NotifyCollectionChangedAction action = default;
_source.AddOrUpdate(person1);
_source.AddOrUpdate(person2);
var person2Updated = new Person("Adult2", 12);
using (_collection.ObserveCollectionChanges().Select(change => change.EventArgs.Action).Subscribe(act => action = act))
{
_source.AddOrUpdate(person2Updated);
}
action.Should().Be(NotifyCollectionChangedAction.Replace, "The notification type should be Replace");
_collection.Should().Equal(person1, person2Updated);
}
