public void SelectedItem_should_not_raise_the_SelectedItemChanged_event_when_changed()
{
var collection = new SelectionObservableCollection <string>(new[] { "a", "b", "c" }, selectedIndex: 2);
using (IMonitor <SelectionObservableCollection <string> > monitoredCollection = collection.Monitor())
{
collection.SelectedItem = "c";
monitoredCollection.Should().NotRaise("SelectedItemChanged");
}
}
public void Select_should_do_nothing_if_the_value_cannot_be_found()
{
var collection = new SelectionObservableCollection <NamedValue <int> >(new[]
{
new NamedValue <int>("One", 1),
new NamedValue <int>("Two", 2),
new NamedValue <int>("Three", 3),
});
collection.Select(4);
collection.SelectedItem.Should().BeNull();
}
public void Select_should_find_the_named_value_with_a_specific_value()
{
var collection = new SelectionObservableCollection <NamedValue <int> >(new[]
{
new NamedValue <int>("One", 1),
new NamedValue <int>("Two", 2),
new NamedValue <int>("Three", 3),
});
collection.Select(2);
collection.SelectedItem.Value.Should().Be(2);
}
public void SelectedItem_should_not_raise_the_PropertyChanged_event_when_changed()
{
var collection = new SelectionObservableCollection <string>(new[] { "a", "b", "c" }, selectedIndex: 2);
using (IMonitor <INotifyPropertyChanged> monitoredCollection = collection.Monitor <INotifyPropertyChanged>())
{
collection.SelectedItem = "c";
// Since ObservableCollection implements INotifyPropertyChanged explicitly, we can't use the fluent
// assertions shortcut `Should().NotRaisePropertyChangedEventFor`.
monitoredCollection.Should().NotRaise("PropertyChanged");
}
}
public void SelectedItem_should_raise_the_PropertyChanged_event_when_changed()
{
var collection = new SelectionObservableCollection <string>(new[] { "a", "b", "c" });
using (IMonitor <INotifyPropertyChanged> monitoredCollection = collection.Monitor <INotifyPropertyChanged>())
{
collection.SelectedItem = "c";
// Since ObservableCollection implements INotifyPropertyChanged explicitly, we can't use the fluent
// assertions shortcut `Should().RaisePropertyChangedEventFor`.
monitoredCollection.Should()
.Raise("PropertyChanged")
.WithSender(collection)
.WithArgs <PropertyChangedEventArgs>(args => args.PropertyName == "SelectedItem");
}
}
public void Ctor_should_select_the_specified_item()
{
var collection = new SelectionObservableCollection <string>(new[] { "a", "b", "c" }, selectedIndex: 1);
collection.SelectedItem.Should().Be("b");
}
public void Ctor_should_default_to_nothing_being_selected()
{
var collection = new SelectionObservableCollection <string>(new[] { "a", "b", "c" });
collection.SelectedItem.Should().BeNull();
}
public void Ctor_should_populate_the_collection()
{
var collection = new SelectionObservableCollection <string>(new[] { "a", "b", "c" });
collection.Should().BeEquivalentTo("a", "b", "c");
}