public void RemoveRaisesPropertyChangedEventForItemIndexerAndCount()
{
// given
using (var observableDictionary = new ObservableDictionary<int, string>())
{
observableDictionary.Add(1, "One");
observableDictionary.MonitorEvents();
// when
observableDictionary.Remove(1);
// then
observableDictionary
.ShouldRaise(nameof(observableDictionary.PropertyChanged))
.WithSender(observableDictionary)
.WithArgs<PropertyChangedEventArgs>(args => args.PropertyName == "Item[]");
observableDictionary
.ShouldRaise(nameof(observableDictionary.PropertyChanged))
.WithSender(observableDictionary)
.WithArgs<PropertyChangedEventArgs>(args => args.PropertyName == nameof(observableDictionary.Count));
}
}
public void RemoveRangeRaisesPropertyChangedEventForItemIndexerAndCountOnlyOnceWhenThresholdAmountWhenItemChangesAreNotifiedAsResetIsSetAccordingly()
{
// given
var items = new List<KeyValuePair<int, string>>()
{
new KeyValuePair<int, string>(1, "One"),
new KeyValuePair<int, string>(2, "Two"),
new KeyValuePair<int, string>(3, "Three"),
};
using (var observableDictionary = new ObservableDictionary<int, string>(items))
{
observableDictionary.ThresholdAmountWhenChangesAreNotifiedAsReset = 0;
observableDictionary.MonitorEvents();
// when
observableDictionary.RemoveRange(items);
// then
observableDictionary
.ShouldRaise(nameof(observableDictionary.PropertyChanged))
.WithSender(observableDictionary)
.WithArgs<PropertyChangedEventArgs>(args => args.PropertyName == "Item[]")
.Should().HaveCount(1); // ToDo: re-enable test if/when https://github.com/dennisdoomen/fluentassertions/issues/337 has been fixed
observableDictionary
.ShouldRaise(nameof(observableDictionary.PropertyChanged))
.WithSender(observableDictionary)
.WithArgs<PropertyChangedEventArgs>(args => args.PropertyName == nameof(observableDictionary.Count))
.Should().HaveCount(1); // ToDo: re-enable test if/when https://github.com/dennisdoomen/fluentassertions/issues/337 has been fixed
}
}
public void RemoveRangeRaisesPropertyChangedEventForItemIndexerAndCount()
{
// given
var items = new List<KeyValuePair<int, string>>()
{
new KeyValuePair<int, string>(1, "One"),
new KeyValuePair<int, string>(2, "Two"),
new KeyValuePair<int, string>(3, "Three"),
};
using (var observableDictionary = new ObservableDictionary<int, string>(items))
{
observableDictionary.ThresholdAmountWhenChangesAreNotifiedAsReset = 0;
observableDictionary.MonitorEvents();
// when
observableDictionary.RemoveRange(items);
// then
observableDictionary
.ShouldRaise(nameof(observableDictionary.PropertyChanged))
.WithSender(observableDictionary)
.WithArgs<PropertyChangedEventArgs>(args => args.PropertyName == "Item[]");
observableDictionary
.ShouldRaise(nameof(observableDictionary.PropertyChanged))
.WithSender(observableDictionary)
.WithArgs<PropertyChangedEventArgs>(args => args.PropertyName == nameof(observableDictionary.Count));
}
}
public void ClearDoesNotRaisesPropertyChangeEventForItemIndexerdAndCountIfDictionaryIsEmpty()
{
// given
using (var observableDictionary = new ObservableDictionary<int, string>())
{
observableDictionary.MonitorEvents();
// when
observableDictionary.Clear();
// then
observableDictionary
.ShouldNotRaise(nameof(observableDictionary.PropertyChanged));
}
}