public void TestMatchPredicates()
{
var pIq = new IqQuery <PingIq> {
Type = IqType.Get, Id = "foo"
};
pIq.IsMatch(iq => iq.HasAttribute("id")).ShouldBeTrue();
pIq.IsMatch(iq => iq.HasAttribute("foo")).ShouldBeFalse();
pIq.IsMatch(el => el.OfType <Iq>()).ShouldBeTrue();
pIq.IsMatch(el => el.OfType <Iq>() && el.Cast <Iq>().Id == "foo").ShouldBeTrue();
pIq.IsMatch(el => el.OfType <Iq>() && el.Cast <Iq>().Id == "foo" && el.Cast <Iq>().Type == IqType.Get)
.ShouldBeTrue();
pIq.IsMatch(el => el.OfType <Iq>() && el.Cast <Iq>().Id == "foo" && el.Cast <Iq>().Type == IqType.Result)
.ShouldBeFalse();
Func <XmppXElement, bool> predicate1 = e => e.OfType <StreamFeatures>();
var elSf = XmppXElement.LoadXml("<stream:features xmlns:stream='http://etherx.jabber.org/streams'/>");
elSf.ShouldBeOfType <StreamFeatures>();
elSf.IsMatch(predicate1).ShouldBeTrue();
var iq2 = new Iq {
Type = IqType.Get
};
iq2.IsMatch(el =>
el.OfType <Iq>() &&
el.Cast <Iq>().Type == IqType.Get &&
el.Cast <Iq>().Query.OfType <Ping>()
).ShouldBeFalse();
iq2.IsMatch(el =>
el.OfType <Iq>() &&
el.Cast <Iq>().Type == IqType.Get
).ShouldBeTrue();
}
