public void AddMethodRaisesEvents() { var propertyArgs = new List<PropertyChangedEventArgs>(); NotifyCollectionChangedEventArgs collectionArgs = null; MultivalueDictionary<string, string> dictionary = new MultivalueDictionary<string, string>(); dictionary.PropertyChanged += ( sender, e ) => propertyArgs.Add( e ); dictionary.CollectionChanged += ( sender, e ) => collectionArgs = e; // adding a new item should raise an event dictionary.Add( "key", "value" ); Assert.Equal( propertyArgs.Count, 2 ); Assert.Equal( propertyArgs[0].PropertyName, "Count" ); Assert.Equal( propertyArgs[1].PropertyName, "Item[]" ); Assert.NotNull( collectionArgs ); Assert.Equal( collectionArgs.Action, NotifyCollectionChangedAction.Add ); Assert.NotNull( collectionArgs.NewItems ); Assert.Equal( 1, collectionArgs.NewItems.Count ); Assert.True( AreEquivalent( collectionArgs.NewItems[0], "key", "value" ) ); Assert.Equal( collectionArgs.NewStartingIndex, 0 ); Assert.Null( collectionArgs.OldItems ); Assert.Equal( collectionArgs.OldStartingIndex, -1 ); // reset propertyArgs.Clear(); collectionArgs = null; // adding an existing item will not raise an event dictionary.Add( "key", "value" ); Assert.Equal( propertyArgs.Count(), 0 ); Assert.Null( collectionArgs ); // appending to an existing item will raise an event dictionary.AddRange( "key", new[] { "other value" } ); Assert.Equal( propertyArgs.Count, 1 ); Assert.Equal( propertyArgs[0].PropertyName, "Item[]" ); Assert.NotNull( collectionArgs ); Assert.NotNull( collectionArgs.NewItems ); Assert.Equal( 1, collectionArgs.NewItems.Count ); Assert.Equal( collectionArgs.Action, NotifyCollectionChangedAction.Replace ); Assert.True( AreEquivalent( collectionArgs.NewItems[0], "key", "value", "value", "other value" ) ); Assert.Equal( collectionArgs.NewStartingIndex, 0 ); Assert.NotNull( collectionArgs.OldItems ); Assert.Equal( 1, collectionArgs.OldItems.Count ); Assert.True( AreEquivalent( collectionArgs.OldItems[0], "key", "value", "value" ) ); Assert.Equal( collectionArgs.OldStartingIndex, 0 ); }
public void AddRangeShouldAppendItems() { const int Key1 = 1; const int Key2 = 2; const string Value = "test value"; const string OtherValue = "other test value"; //Create the initial dictionary var dict = new MultivalueDictionary<int, string>(); dict.Add( Key1, Value ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[Key1].Count, 1 ); //Add new item dict.AddRange( Key2, new[] { Value, Guid.NewGuid().ToString() } ); Assert.Equal( dict.Count, 2 ); Assert.Equal( dict[Key1].Count, 1 ); Assert.Equal( dict[Key2].Count, 2 ); //Add existing item with new value dict.Add( Key1, OtherValue ); Assert.Equal( dict.Count, 2 ); Assert.Equal( dict[Key1].Count, 2 ); }
public void CanAddDuplicatesItemsWhenAllowed() { const string Value = "test value"; var dict = new MultivalueDictionary<int, string>(); dict.Add( 1, Value ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[1].Count, 1 ); dict.Add( 1, Value ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[1].Count, 2 ); dict.Add( 1, Guid.NewGuid().ToString() ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[1].Count, 3 ); dict.Add( 1, new[] { Guid.NewGuid().ToString() } ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[1].Count, 4 ); dict.Add( 1, new[] { Value } ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[1].Count, 5 ); dict.AddRange( 1, new[] { Guid.NewGuid().ToString() } ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[1].Count, 6 ); dict.AddRange( 1, new[] { Value } ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[1].Count, 7 ); }
public void AddRangeFiltersDuplicatesWhenNotAllowed() { const int Key = 1; const string Value = "test value"; // create the intial test subject var dict = new MultivalueDictionary<int, string>( () => new HashSet<string>() ); dict.Add( Key, Value ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[Key].Count, 1 ); // now AddRange with one existing value and one new value dict.AddRange( Key, new[] { Value, Guid.NewGuid().ToString() } ); Assert.Equal( dict.Count, 1 ); Assert.Equal( dict[Key].Count, 2 ); }