public void ClearSource_ShoudClear()
{
NotifyCollectionChangedEventArgs collectionChangedEventArgs = null;
var collectionChangedEventsCount = 0;
var isCountPropertyChangedEventRaised = false;
var aItemsList = new[] { 1, 2, 3 };
var bItemsList = new[] { 2, 4, 6 };
var groups = new List <IGrouping <string, int> >
{
new IntGroup("A", aItemsList),
new IntGroup("B", bItemsList),
};
var source = new ObservableGroupedCollection <string, int>(groups);
var readOnlyGroup = new ReadOnlyObservableGroupedCollection <string, int>(source);
((INotifyCollectionChanged)readOnlyGroup).CollectionChanged += (s, e) =>
{
collectionChangedEventArgs = e;
collectionChangedEventsCount++;
};
((INotifyPropertyChanged)readOnlyGroup).PropertyChanged += (s, e) => isCountPropertyChangedEventRaised = isCountPropertyChangedEventRaised || e.PropertyName == nameof(readOnlyGroup.Count);
source.Clear();
readOnlyGroup.Should().BeEmpty();
readOnlyGroup.Count.Should().Be(0);
isCountPropertyChangedEventRaised.Should().BeTrue();
collectionChangedEventArgs.Should().NotBeNull();
collectionChangedEventsCount.Should().Be(1);
IsResetEventValid(collectionChangedEventArgs).Should().BeTrue();
}
public void InsertGroupInSource_ShouldAddGroup(int insertionIndex)
{
NotifyCollectionChangedEventArgs collectionChangedEventArgs = null;
var collectionChangedEventsCount = 0;
var isCountPropertyChangedEventRaised = false;
var itemsList = new[] { 1, 2, 3 };
var source = new ObservableGroupedCollection <string, int>
{
new ObservableGroup <string, int>("Group0", new[] { 10, 20, 30 }),
new ObservableGroup <string, int>("Group1", new[] { 40, 50, 60 })
};
var readOnlyGroup = new ReadOnlyObservableGroupedCollection <string, int>(source);
((INotifyCollectionChanged)readOnlyGroup).CollectionChanged += (s, e) =>
{
collectionChangedEventArgs = e;
collectionChangedEventsCount++;
};
((INotifyPropertyChanged)readOnlyGroup).PropertyChanged += (s, e) => isCountPropertyChangedEventRaised = isCountPropertyChangedEventRaised || e.PropertyName == nameof(readOnlyGroup.Count);
source.Insert(insertionIndex, new ObservableGroup <string, int>("Add", itemsList));
readOnlyGroup.Should().HaveCount(3);
readOnlyGroup.Count.Should().Be(3);
readOnlyGroup.ElementAt(insertionIndex).Key.Should().Be("Add");
readOnlyGroup.ElementAt(insertionIndex).Should().BeEquivalentTo(itemsList, o => o.WithoutStrictOrdering());
isCountPropertyChangedEventRaised.Should().BeTrue();
collectionChangedEventArgs.Should().NotBeNull();
collectionChangedEventsCount.Should().Be(1);
IsAddEventValid(collectionChangedEventArgs, itemsList, addIndex: insertionIndex).Should().BeTrue();
}
public void RemoveGroupInSource_ShoudRemoveGroup()
{
NotifyCollectionChangedEventArgs collectionChangedEventArgs = null;
var collectionChangedEventsCount = 0;
var isCountPropertyChangedEventRaised = false;
var aItemsList = new[] { 1, 2, 3 };
var bItemsList = new[] { 2, 4, 6 };
var groups = new List <IGrouping <string, int> >
{
new IntGroup("A", aItemsList),
new IntGroup("B", bItemsList),
};
var source = new ObservableGroupedCollection <string, int>(groups);
var readOnlyGroup = new ReadOnlyObservableGroupedCollection <string, int>(source);
((INotifyCollectionChanged)readOnlyGroup).CollectionChanged += (s, e) =>
{
collectionChangedEventArgs = e;
collectionChangedEventsCount++;
};
((INotifyPropertyChanged)readOnlyGroup).PropertyChanged += (s, e) => isCountPropertyChangedEventRaised = isCountPropertyChangedEventRaised || e.PropertyName == nameof(readOnlyGroup.Count);
source.RemoveAt(1);
readOnlyGroup.Should().ContainSingle();
readOnlyGroup.Count.Should().Be(1);
readOnlyGroup.ElementAt(0).Key.Should().Be("A");
readOnlyGroup.ElementAt(0).Should().BeEquivalentTo(aItemsList, o => o.WithoutStrictOrdering());
isCountPropertyChangedEventRaised.Should().BeTrue();
collectionChangedEventArgs.Should().NotBeNull();
collectionChangedEventsCount.Should().Be(1);
IsRemoveEventValid(collectionChangedEventArgs, bItemsList, 1).Should().BeTrue();
}
public void AddGroupInSource_ShouldAddGroup(int sourceInitialItemsCount, int expectedInsertionIndex)
{
NotifyCollectionChangedEventArgs collectionChangedEventArgs = null;
var collectionChangedEventsCount = 0;
var isCountPropertyChangedEventRaised = false;
var itemsList = new[] { 1, 2, 3 };
var source = new ObservableGroupedCollection <string, int>();
for (var i = 0; i < sourceInitialItemsCount; i++)
{
source.Add(new ObservableGroup <string, int>($"group {i}", Enumerable.Empty <int>()));
}
var readOnlyGroup = new ReadOnlyObservableGroupedCollection <string, int>(source);
((INotifyCollectionChanged)readOnlyGroup).CollectionChanged += (s, e) =>
{
collectionChangedEventArgs = e;
collectionChangedEventsCount++;
};
((INotifyPropertyChanged)readOnlyGroup).PropertyChanged += (s, e) => isCountPropertyChangedEventRaised = isCountPropertyChangedEventRaised || e.PropertyName == nameof(readOnlyGroup.Count);
source.Add(new ObservableGroup <string, int>("Add", itemsList));
var expectedReadOnlyGroupCount = sourceInitialItemsCount + 1;
readOnlyGroup.Should().HaveCount(expectedReadOnlyGroupCount);
readOnlyGroup.Count.Should().Be(expectedReadOnlyGroupCount);
readOnlyGroup.Last().Key.Should().Be("Add");
readOnlyGroup.Last().Should().BeEquivalentTo(itemsList, o => o.WithoutStrictOrdering());
isCountPropertyChangedEventRaised.Should().BeTrue();
collectionChangedEventArgs.Should().NotBeNull();
collectionChangedEventsCount.Should().Be(1);
IsAddEventValid(collectionChangedEventArgs, itemsList, expectedInsertionIndex).Should().BeTrue();
}