public void DataItemLinkToIsCollectionChanged()
{
//create a list of dataItem containing urls
IEventedList <IDataItem> dataItems = new EventedList <IDataItem>();
var oldUrl = new Url();
var dataItem = new DataItem(oldUrl);
dataItems.Add(dataItem);
//adapter for the list
var adapter = new DataItemListAdapter <Url>(dataItems);
var newUrl = new Url();
var sourceDataItem = new DataItem(newUrl);
int callCount = 0;
adapter.CollectionChanged += (sender, e) =>
{
callCount++;
Assert.AreEqual(NotifyCollectionChangedAction.Replace, e.Action);
Assert.AreEqual(adapter, sender);
Assert.AreEqual(newUrl, e.Item);
//discutable but current eventedlist implementation does this
Assert.AreEqual(-1, e.OldIndex);
Assert.AreEqual(0, e.Index);
};
//action! link the first dataItem.
dataItems[0].LinkTo(sourceDataItem);
Assert.AreEqual(1, callCount);
}
public void CollectionChangedReplaceDataItemsResultInCollectionChangedForAdapter()
{
//create a list of dataItem containing urls
IEventedList<IDataItem> dataItems = new EventedList<IDataItem>();
var oldUrl = new Url();
var newUrl = new Url();
var dataItem = new DataItem(oldUrl);
dataItems.Add(dataItem);
//adapter for the list
var adapter = new DataItemListAdapter<Url>(dataItems);
int callCount = 0;
adapter.CollectionChanged += (sender, e) =>
{
callCount++;
Assert.AreEqual(NotifyCollectionChangedAction.Replace,e.Action);
Assert.AreEqual(adapter, sender);
Assert.AreEqual(newUrl, e.Item);
//discutable but current eventedlist implementation does this
Assert.AreEqual(-1, e.OldIndex);
Assert.AreEqual(0, e.Index);
};
//action! replace one dataitem with another
dataItems[0] = new DataItem(newUrl);
Assert.AreEqual(1, callCount);
}
public void CollectionChangedRemoveDataItemsResultInCollectionChangedForAdapter()
{
//create a list of dataItem containing urls
IEventedList <IDataItem> dataItems = new EventedList <IDataItem>();
var url = new Url();
var dataItem = new DataItem(url);
dataItems.Add(dataItem);
//adapter for the list
var adapter = new DataItemListAdapter <Url>(dataItems);
int callCount = 0;
adapter.CollectionChanged += (sender, e) =>
{
callCount++;
Assert.AreEqual(adapter, sender);
Assert.AreEqual(url, e.Item);
Assert.AreEqual(0, e.Index);
};
//action! remove the url from the dataitems list
dataItems.Remove(dataItem);
Assert.AreEqual(1, callCount);
}
public void CollectionChangedAddToDataItemsResultInCollectionChangedForAdapter()
{
IEventedList < IDataItem > dataItems = new EventedList<IDataItem>();
var adapter = new DataItemListAdapter<Url>(dataItems);
var url = new Url();
int callCount = 0;
adapter.CollectionChanged += (sender, e) =>
{
callCount++;
Assert.AreEqual(adapter, sender);
Assert.AreEqual(url, e.Item);
Assert.AreEqual(0, e.Index);
};
//action! add
dataItems.Add(new DataItem(url));
Assert.AreEqual(1,callCount);
}
public void CollectionChangedAddToDataItemsResultInCollectionChangedForAdapter()
{
IEventedList <IDataItem> dataItems = new EventedList <IDataItem>();
var adapter = new DataItemListAdapter <Url>(dataItems);
var url = new Url();
int callCount = 0;
adapter.CollectionChanged += (sender, e) =>
{
callCount++;
Assert.AreEqual(adapter, sender);
Assert.AreEqual(url, e.Item);
Assert.AreEqual(0, e.Index);
};
//action! add
dataItems.Add(new DataItem(url));
Assert.AreEqual(1, callCount);
}
public void UpdatesInDataItemResultInPropertyChangedOfAdaptingList()
{
//note: this is really not a nice feature. The whole property changed bubbling stuff bubbling is BAD.
IEventedList <IDataItem> dataItems = new EventedList <IDataItem>();
var adapter = new DataItemListAdapter <Url>(dataItems);
var url = new Url();
adapter.Add(url);
int callCount = 0;
adapter.PropertyChanged += (s, e) =>
{
callCount++;
Assert.AreEqual("Name", e.PropertyName);
Assert.AreEqual(url, s);
};
((Url)(dataItems[0].Value)).Name = "Hooi";
Assert.AreEqual(1, callCount);
//why is this bad
}
public void CollectionChangedRemoveDataItemsResultInCollectionChangedForAdapter()
{
//create a list of dataItem containing urls
IEventedList<IDataItem> dataItems = new EventedList<IDataItem>();
var url = new Url();
var dataItem = new DataItem(url);
dataItems.Add(dataItem);
//adapter for the list
var adapter = new DataItemListAdapter<Url>(dataItems);
int callCount = 0;
adapter.CollectionChanged += (sender, e) =>
{
callCount++;
Assert.AreEqual(adapter, sender);
Assert.AreEqual(url, e.Item);
Assert.AreEqual(0, e.Index);
};
//action! remove the url from the dataitems list
dataItems.Remove(dataItem);
Assert.AreEqual(1, callCount);
}
public void AddToAdapter()
{
IEventedList <IDataItem> dataItems = new EventedList <IDataItem>();
var adapter = new DataItemListAdapter <Url>(dataItems);
int callCount = 0;
var newUrl = new Url();
adapter.CollectionChanged += (sender, e) =>
{
callCount++;
Assert.AreEqual(NotifyCollectionChangedAction.Add, e.Action);
Assert.AreEqual(adapter, sender);
Assert.AreEqual(newUrl, e.Item);
//discutable but current eventedlist implementation does this
Assert.AreEqual(-1, e.OldIndex);
Assert.AreEqual(0, e.Index);
};
//action! add a new url
adapter.Add(newUrl);
Assert.AreEqual(1, dataItems.Count);
Assert.AreEqual(1, callCount);
}
public void UpdatesInDataItemResultInPropertyChangedOfAdaptingList()
{
//note: this is really not a nice feature. The whole property changed bubbling stuff bubbling is BAD.
IEventedList<IDataItem> dataItems = new EventedList<IDataItem>();
var adapter = new DataItemListAdapter<Url>(dataItems);
var url = new Url();
adapter.Add(url);
int callCount = 0;
adapter.PropertyChanged += (s, e) =>
{
callCount++;
Assert.AreEqual("Name", e.PropertyName);
Assert.AreEqual(url, s);
};
((Url)(dataItems[0].Value)).Name = "Hooi";
Assert.AreEqual(1,callCount);
//why is this bad
}
public void AddToAdapter()
{
IEventedList<IDataItem> dataItems = new EventedList<IDataItem>();
var adapter = new DataItemListAdapter<Url>(dataItems);
int callCount = 0;
var newUrl = new Url();
adapter.CollectionChanged += (sender, e) =>
{
callCount++;
Assert.AreEqual(NotifyCollectionChangedAction.Add, e.Action);
Assert.AreEqual(adapter, sender);
Assert.AreEqual(newUrl, e.Item);
//discutable but current eventedlist implementation does this
Assert.AreEqual(-1, e.OldIndex);
Assert.AreEqual(0, e.Index);
};
//action! add a new url
adapter.Add(newUrl);
Assert.AreEqual(1,dataItems.Count);
Assert.AreEqual(1,callCount);
}
public void DataValueSettingIsCollectionChanged()
{
//create a list of dataItem containing urls
IEventedList<IDataItem> dataItems = new EventedList<IDataItem>();
var oldUrl = new Url();
var dataItem = new DataItem(oldUrl);
dataItems.Add(dataItem);
//adapter for the list
var adapter = new DataItemListAdapter<Url>(dataItems);
var newUrl = new Url();
var sourceDataItem = new DataItem(newUrl);
int callCount = 0;
adapter.CollectionChanged += (sender, e) =>
{
callCount++;
Assert.AreEqual(NotifyCollectionChangedAction.Replace, e.Action);
Assert.AreEqual(adapter, sender);
Assert.AreEqual(newUrl, e.Item);
//discutable but current eventedlist implementation does this
Assert.AreEqual(-1, e.OldIndex);
Assert.AreEqual(0, e.Index);
};
//action! set Value of the first dataItem.
dataItems[0].Value = newUrl;
Assert.AreEqual(1, callCount);
}