public void SetRangeShouldFilterDuplicatesWhenNotAllowed()
{
const string Value = "test value";
const string OtherValue = "other value";
var dict = new MultivalueDictionary<int, string>( () => new HashSet<string>() );
dict.Add( 1, Value );
dict.Add( 1, OtherValue );
Assert.Equal( dict.CountValues( 1 ), 2 );
dict.SetRange( 1, new[] { Value, Value } );
Assert.Equal( dict.CountValues( 1 ), 1 );
Assert.Equal( dict[1].First(), Value );
}
public void SetRangeMethodRaisesEvents()
{
IList<PropertyChangedEventArgs> 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;
// replacing with a new item should raise an event
dictionary.SetRange( "key", new[] { "value" } );
Assert.Equal( propertyArgs.Count, 2 );
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;
// replacing an existing item with an existing value should raise an event
dictionary.Set( "key", "value" );
Assert.Equal( propertyArgs.Count, 1 );
Assert.NotNull( collectionArgs );
Assert.Equal( collectionArgs.Action, NotifyCollectionChangedAction.Replace );
Assert.NotNull( collectionArgs.NewItems );
Assert.Equal( 1, collectionArgs.NewItems.Count );
Assert.True( AreEquivalent( collectionArgs.NewItems[0], "key", "value" ) );
Assert.Equal( collectionArgs.NewStartingIndex, 0 );
Assert.NotNull( collectionArgs.OldItems );
Assert.Equal( 1, collectionArgs.OldItems.Count );
Assert.True( AreEquivalent( collectionArgs.OldItems[0], "key", "value" ) );
Assert.Equal( collectionArgs.OldStartingIndex, 0 );
// reset
propertyArgs.Clear();
collectionArgs = null;
// replacing an existing item with a new value should raise an event
dictionary.SetRange( "key", new[] { "other value" } );
Assert.Equal( propertyArgs.Count, 1 );
Assert.NotNull( collectionArgs );
Assert.Equal( collectionArgs.Action, NotifyCollectionChangedAction.Replace );
Assert.NotNull( collectionArgs.NewItems );
Assert.Equal( 1, collectionArgs.NewItems.Count );
Assert.True( AreEquivalent( collectionArgs.NewItems[0], "key", "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" ) );
Assert.Equal( collectionArgs.OldStartingIndex, 0 );
}
public void SetRangeShouldReplaceValues()
{
const string Value = "test value";
const string OtherValue = "other value";
var dict = new MultivalueDictionary<int, string>( () => new HashSet<string>() );
dict.Add( 1, Value );
dict.Add( 1, OtherValue );
Assert.Equal( dict.CountValues( 1 ), 2 );
dict.SetRange( 1, new[] { Guid.NewGuid().ToString() } );
Assert.Equal( dict.CountValues( 1 ), 1 );
}
