public void ShouldReportChangeWhenExistingChildrenChange()
{
var collection = new ObservableCollection<Sample> { new Sample(), new Sample(), new Sample() };
var monitor = new NotifyPropertyChangedCollectionMonitor<Sample>(collection);
ChildPropertyChangedEventArgs<Sample> args = null;
monitor.PropertyChanged += (sender, e) => args = e;
collection[1].Text = "Value";
args.PropertyName.ShouldBe(Sample.PropText);
args.Source.ShouldBe(collection[1]);
}
public void ShouldStopReportingChangesWhenRemovedFromCollection()
{
var collection = new ObservableCollection<Sample> { new Sample(), new Sample(), new Sample() };
var monitor = new NotifyPropertyChangedCollectionMonitor<Sample>(collection);
ChildPropertyChangedEventArgs<Sample> args = null;
monitor.PropertyChanged += (sender, e) => args = e;
var child = collection[0];
collection.Remove(child);
child.Text = "Value";
args.ShouldBe(null);
}
public void ShouldStopReportingChangesWhenRemovedByReplaceOperationInCollection()
{
var collection = new ObservableCollection<Sample> { new Sample(), new Sample(), new Sample() };
var monitor = new NotifyPropertyChangedCollectionMonitor<Sample>(collection);
ChildPropertyChangedEventArgs<Sample> args = null;
monitor.PropertyChanged += (sender, e) => args = e;
var childOld = collection[0];
var childNew = new Sample();
collection[0] = childNew;
childOld.Text = "Value";
args.ShouldBe(null);
childNew.Text = "Value";
args.PropertyName.ShouldBe(Sample.PropText);
args.Source.ShouldBe(childNew);
}
public void ShouldExposeSourceCollection()
{
var collection = new ObservableCollection<Sample>();
var monitor = new NotifyPropertyChangedCollectionMonitor<Sample>(collection);
monitor.Collection.ShouldBe(collection);
}
public void ShouldThrowWhenClearCalled()
{
var collection = new ObservableCollection<Sample>();
var monitor = new NotifyPropertyChangedCollectionMonitor<Sample>(collection);
Should.Throw<NotSupportedException>(collection.Clear);
}
