public void ObserveAttributes_should_invoke_optimized_registration()
{
var doc = new DomDocument();
doc.AppendElement("hello").AppendElement("world");
var evts = new TestActionDispatcher <DomAttributeEvent>(_ => {});
var observer = doc.ObserveAttributes(doc.DocumentElement, "l", evts.Invoke, DomScope.TargetAndDescendants);
doc.QuerySelectorAll("*").Attribute("l", "k");
Assert.Equal(2, evts.CallCount);
Assert.Equal("hello", evts.ArgsForCall(0).Target.LocalName);
Assert.Equal("world", evts.ArgsForCall(1).Target.LocalName);
Assert.Equal("l", evts.ArgsForCall(1).LocalName);
}
public void ObserveAttributes_callback_should_be_invoked_on_removing_an_attribute(Action <DomElement> callback)
{
var doc = new DomDocument().LoadXml(@"
<root attr='root value' />
".Replace("'", "\""));
var element = doc.QuerySelector("root");
var evts = new TestActionDispatcher <DomAttributeEvent>(_ => {});
doc.ObserveAttributes(element, evts.Invoke);
callback(element);
Assert.Equal(1, evts.CallCount);
Assert.Equal("root value", evts.ArgsForCall(0).OldValue);
Assert.Null(evts.ArgsForCall(0).Value);
Assert.Equal("attr", evts.ArgsForCall(0).LocalName);
}
public void GetName_will_notify_mutation_events_when_name_content_changes()
{
var ele = new DomDocument().CreateElement("s");
ele.NameContext = DomNameContext.Xml;
ele.Attribute("a", "a").Attribute("A", "A")
.Attribute("b", "b").Attribute("B", "B")
.Attribute("c", "c").Attribute("C", "C");
var evts = new TestActionDispatcher <DomAttributeEvent>(_ => {});
var observer = ele.OwnerDocument.ObserveAttributes(ele, evts.Invoke);
ele.NameContext = DomNameContext.Html;
// Should have generated several events indicating that attributes were
Assert.Equal(3, evts.CallCount);
Assert.Equal("A", evts.ArgsForCall(0).LocalName);
Assert.Equal("B", evts.ArgsForCall(1).LocalName);
Assert.Equal("C", evts.ArgsForCall(2).LocalName);
}
public void ObserveChildNodes_callback_should_be_invoked_on_mutation_nodes(MutationData data)
{
var doc = new DomDocument().LoadXml(@"
<root><a/><b/><c/></root>
");
var element = doc.DocumentElement;
var evts = new TestActionDispatcher <DomMutationEvent>(_ => {});
var expected = data.Event(element);
doc.ObserveChildNodes(element, evts.Invoke);
data.Action(element);
var actuallyAddedNodes = data.Event(element).AddedNodes;
Assert.Equal(1, evts.CallCount);
Assert.Equal(actuallyAddedNodes.NodeNames(), evts.ArgsForCall(0).AddedNodes.NodeNames());
Assert.Equal(expected.RemovedNodes.NodeNames(), evts.ArgsForCall(0).RemovedNodes.NodeNames());
Assert.Same(expected.NextSiblingNode, evts.ArgsForCall(0).NextSiblingNode);
Assert.Same(expected.PreviousSiblingNode, evts.ArgsForCall(0).PreviousSiblingNode);
}