public void WireWithStaticHandler()
{
PingSource source = new PingSource();
InstanceEventHandlerValue wirer
= new InstanceEventHandlerValue(source, "OnPing");
wirer.EventName = "Ping";
wirer.Wire(source, typeof(StaticPingListener));
}
public void BailsIfMethodDoesntExist()
{
PingSource source = new PingSource();
InstanceEventHandlerValue wirer
= new InstanceEventHandlerValue(source, "Roo");
wirer.EventName = "Ping";
Assert.Throws <FatalObjectException>(() => wirer.Wire(source, typeof(StaticPingListener)));
}
public void Instantiation()
{
PingSource source = new PingSource();
StaticEventHandlerValue wirer
= new StaticEventHandlerValue(source, "OnPing");
Assert.IsNotNull(wirer.Source);
Assert.AreEqual("OnPing", wirer.MethodName);
Assert.IsTrue(wirer.ToString().IndexOf(wirer.MethodName) > 0);
}
public void WireWithInstanceHandler()
{
StaticEventHandlerValue wirer = new StaticEventHandlerValue();
wirer.EventName = "Ping";
wirer.MethodName = "OnPing";
PingSource source = new PingSource();
Assert.Throws <FatalObjectException>(() => wirer.Wire(source, new PingListener()));
}
public void Wire()
{
InstanceEventHandlerValue wirer = new InstanceEventHandlerValue();
wirer.EventName = "Ping";
wirer.MethodName = "OnPing";
PingSource source = new PingSource();
PingListener sink = new PingListener();
wirer.Wire(source, sink);
source.OnPing();
Assert.IsTrue(sink.GotPing, "The event handler did not get notified when the event was raised.");
Assert.AreEqual(1, sink.PingCount, "The event handler was not get notified exactly once when the event was raised exactly once.");
}
public void Wire()
{
PingSource source = new PingSource();
StaticEventHandlerValue wirer
= new StaticEventHandlerValue(source, "OnPing");
wirer.EventName = "Ping";
Type sink = typeof(StaticPingListener);
wirer.Wire(source, sink);
source.OnPing();
Assert.IsTrue(StaticPingListener.GotPing, "The event handler did not get notified when the event was raised.");
Assert.AreEqual(1, StaticPingListener.PingCount, "The event handler was not get notified exactly once when the event was raised exactly once.");
}
public void AutowireAllHandlersWithCompatibleSignatures()
{
// create the event source, and a listener to wire to an event (s) on the source
PingSource source = new PingSource();
PingListener listener = new PingListener();
// wire them up (any methods on the listener that have a compatible signature will be wired up)
IEventHandlerValue wirer = new AutoWiringEventHandlerValue();
wirer.EventName = "^Ping$";
wirer.Wire(source, listener);
// raise the event on the source
source.OnPing();
// ascertain that the event handler was indeed notified of the raised event
Assert.IsTrue(listener.GotPing, "The listener was not notified of the raised event.");
Assert.IsFalse(listener.GotPinging, "The listener was (incorrectly) notified of an event that wasn't raised.");
Assert.IsFalse(listener.GotPinged, "The listener was (incorrectly) notified of an event that wasn't raised.");
}
public void AutowireExplicitlyWithBadSignatureMethod()
{
// create the event source, and a listener to wire to an event (s) on the source
PingSource source = new PingSource();
PingListener listener = new PingListener();
// wire them up
IEventHandlerValue wirer = new AutoWiringEventHandlerValue();
wirer.EventName = "Ping";
wirer.MethodName = "OnPinged"; // signature is incompatible
wirer.Wire(source, listener);
// raise the event on the source
source.OnPing();
// ascertain that the event listener was not notified of the raised event
Assert.IsFalse(listener.GotPing, "The listener was (incorrectly) notified of the raised event.");
Assert.IsFalse(listener.GotPinging, "The listener was (incorrectly) notified of an event that wasn't raised.");
Assert.IsFalse(listener.GotPinged, "The listener was (incorrectly) notified of an event that wasn't raised.");
}
public void TestDefaultMethodMatching()
{
// create the event source, and a listener to wire to an event (s) on the source
PingSource source = new PingSource();
PingListener listener = new PerversePingListener();
// wire them up
IEventHandlerValue wirer = new AutoWiringEventHandlerValue();
wirer.EventName = "^Ping$";
wirer.MethodName = ".+${event}.+"; // matches 'WhatClubDoYouUsePingAhGood'
wirer.Wire(source, listener);
// raise the event on the source
source.OnPing();
// ascertain that the event listener was not notified of the raised event
Assert.IsTrue(listener.GotPing, "The listener was not notified of the raised event.");
Assert.IsFalse(listener.GotPinging, "The listener was (incorrectly) notified of an event that wasn't raised.");
Assert.IsFalse(listener.GotPinged, "The listener was (incorrectly) notified of an event that wasn't raised.");
}
public void AutowiringIsCaseInsensitive()
{
// create the event source, and a listener to wire to an event (s) on the source
PingSource source = new PingSource();
PingListener listener = new PingListener();
// wire them up
IEventHandlerValue wirer = new AutoWiringEventHandlerValue();
wirer.EventName = "pInG";
wirer.MethodName = "onpiNg";
wirer.Wire(source, listener);
// raise the event (s) on the source
source.OnPing();
// ascertain that the event listener was indeed notified of the raised event
Assert.IsFalse(listener.GotPinging, "The listener was (incorrectly) notified of the raised event.");
Assert.IsTrue(listener.GotPing, "The listener was not notified of the raised event.");
Assert.IsFalse(listener.GotPinged, "The listener was (incorrectly) notified of the raised event.");
}
public void AutowireExplicitly()
{
// create the event source, and a listener to wire to an event (s) on the source
PingSource source = new PingSource();
PingListener listener = new PingListener();
// wire them up
IEventHandlerValue wirer = new AutoWiringEventHandlerValue();
wirer.EventName = "Ping";
wirer.MethodName = "OnPing";
wirer.Wire(source, listener);
// raise the event on the source
source.OnPing();
// ascertain that the event listener was indeed notified of the raised event
Assert.IsTrue(listener.GotPing, "The listener was not notified of the raised event.");
Assert.IsTrue(listener.PingCount == 1, "The listener was notified more than once for a single raising of the source event (registered to listen more than once?)");
Assert.IsFalse(listener.GotPinging, "The listener was (incorrectly) notified of an event that wasn't raised.");
Assert.IsFalse(listener.GotPinged, "The listener was (incorrectly) notified of an event that wasn't raised.");
}
public void AutowireAllEventsOnSource()
{
// create the event source, and a listener to wire to an event (s) on the source
PingSource source = new PingSource();
PingListener listener = new PingListener();
// wire them up (any methods on the listener that have a signature compatible
// with any event exposed on the source will be wired up)
IEventHandlerValue wirer = new AutoWiringEventHandlerValue();
wirer.Wire(source, listener);
// raise the event (s) on the source
source.OnPinging();
source.OnPing();
source.OnPinged();
// ascertain that the event listener was indeed notified of the raised event
Assert.IsTrue(listener.GotPinging, "The listener was not notified of the raised event.");
Assert.IsTrue(listener.GotPing, "The listener was not notified of the raised event.");
Assert.IsTrue(listener.GotPinged, "The listener was not notified of the raised event.");
}
public void AllCompatibleSignaturesAreWired()
{
// create the event source, and a listener to wire to an event (s) on the source
PingSource source = new PingSource();
PingListener listener = new PingListener();
// wire them up
IEventHandlerValue wirer = new AutoWiringEventHandlerValue();
wirer.EventName = "Pinging";
wirer.MethodName = ".+"; // both OnPinging and OnPinged have compatible sigs :'(
wirer.Wire(source, listener);
// raise the event (s) on the source
source.OnPinging();
// ascertain that the event listener was indeed notified of the raised event
Assert.IsTrue(listener.GotPinging, "The listener was not notified of the raised event.");
Assert.IsFalse(listener.GotPing, "The listener was (incorrectly) notified of the raised event.");
// the moral of the story is...
// don't use greedy method name regex's for autowiring, be explicit
Assert.IsTrue(listener.GotPinged, "The listener was not notified of the raised event.");
}
