public void NoExceptionIfExistingObjectDoesntAndNoBroker()
{
MockBuilderContext context = CreateContext();
NamedTypeBuildKey buildKey = NamedTypeBuildKey.Make<OneEventPublisher>();
EventBrokerInfoPolicy policy = new EventBrokerInfoPolicy();
policy.AddPublication("paste", "Pasting");
context.Policies.Set<IEventBrokerInfoPolicy>(policy, buildKey);
context.ExecuteBuildUp(buildKey, null);
// No assert needed, if we got here, we're ok
}
/// <summary>
/// Called during the chain of responsibility for a build operation. The PreBuildUp
/// method is called when the chain is being executed in the forward direction.
/// </summary>
/// <remarks> Sander.struijk, 14.05.2014. </remarks>
/// <param name="context"> Context of the build operation. </param>
public override void PreBuildUp(IBuilderContext context)
{
if (context.Policies.Get <IEventBrokerInfoPolicy>(context.BuildKey) == null)
{
var policy = new EventBrokerInfoPolicy();
context.Policies.Set <IEventBrokerInfoPolicy>(policy, context.BuildKey);
AddPublicationsToPolicy(context.BuildKey, policy);
AddSubscriptionsToPolicy(context.BuildKey, policy);
}
}
public override void PreBuildUp(IBuilderContext context)
{
if (context.Policies.Get<IEventBrokerInfoPolicy>(context.BuildKey) == null)
{
EventBrokerInfoPolicy policy = new EventBrokerInfoPolicy();
context.Policies.Set<IEventBrokerInfoPolicy>(policy, context.BuildKey);
AddPublicationsToPolicy(context.BuildKey, policy);
AddSubscriptionsToPolicy(context.BuildKey, policy);
}
}
/// <summary> Adds the subscriptions to policy to 'policy'. </summary>
/// <remarks> Sander.struijk, 14.05.2014. </remarks>
/// <param name="buildKey"> The build key. </param>
/// <param name="policy"> The policy. </param>
private void AddSubscriptionsToPolicy(NamedTypeBuildKey buildKey, EventBrokerInfoPolicy policy)
{
foreach (MethodInfo method in buildKey.Type.GetMethods())
{
var attrs =
(SubscribesToAttribute[])
method.GetCustomAttributes(typeof(SubscribesToAttribute), true);
if (attrs.Length > 0)
{
policy.AddSubscription(attrs[0].EventName, method);
}
}
}
private void AddSubscriptionsToPolicy(NamedTypeBuildKey buildKey, EventBrokerInfoPolicy policy)
{
foreach(MethodInfo method in buildKey.Type.GetMethods())
{
SubscribesToAttribute[] attrs =
(SubscribesToAttribute[])
method.GetCustomAttributes(typeof(SubscribesToAttribute), true);
if(attrs.Length > 0)
{
policy.AddSubscription(attrs[0].EventName, method);
}
}
}
private void AddPublicationsToPolicy(NamedTypeBuildKey buildKey, EventBrokerInfoPolicy policy)
{
Type t = buildKey.Type;
foreach(EventInfo eventInfo in t.GetEvents())
{
PublishesAttribute[] attrs =
(PublishesAttribute[])eventInfo.GetCustomAttributes(typeof(PublishesAttribute), true);
if(attrs.Length > 0)
{
policy.AddPublication(attrs[0].EventName, eventInfo.Name);
}
}
}
/// <summary> Adds the publications to policy to 'policy'. </summary>
/// <remarks> Sander.struijk, 14.05.2014. </remarks>
/// <param name="buildKey"> The build key. </param>
/// <param name="policy"> The policy. </param>
private void AddPublicationsToPolicy(NamedTypeBuildKey buildKey, EventBrokerInfoPolicy policy)
{
var t = buildKey.Type;
foreach (EventInfo eventInfo in t.GetEvents())
{
var attrs =
(PublishesAttribute[])eventInfo.GetCustomAttributes(typeof(PublishesAttribute), true);
if (attrs.Length > 0)
{
policy.AddPublication(attrs[0].EventName, eventInfo.Name);
}
}
}
public void StrategyDoesntOverwriteAnExistingPolicy()
{
MockBuilderContext context = CreateContext();
NamedTypeBuildKey buildKey = NamedTypeBuildKey.Make<object>();
EventBrokerInfoPolicy policy = new EventBrokerInfoPolicy();
context.Policies.Set<IEventBrokerInfoPolicy>(policy, buildKey);
context.ExecuteBuildUp(buildKey, null);
IEventBrokerInfoPolicy setPolicy =
context.Policies.Get<IEventBrokerInfoPolicy>(buildKey);
Assert.AreSame(policy, setPolicy);
}
public void ExceptionIfNoWireupNeededAndNoBroker()
{
MockBuilderContext context = CreateContext();
NamedTypeBuildKey buildKey = NamedTypeBuildKey.Make<object>();
EventBrokerInfoPolicy policy = new EventBrokerInfoPolicy();
context.Policies.Set<IEventBrokerInfoPolicy>(policy, buildKey);
try
{
context.ExecuteBuildUp(buildKey, new object());
}
catch (Exception)
{
// If we got here, we're ok
return;
}
Assert.Fail("No exception Occurred");
}
public void StrategyThrowsIfWireupIsNeededAndBrokerNotInLocator()
{
MockBuilderContext context = CreateContext();
NamedTypeBuildKey buildKey = NamedTypeBuildKey.Make<OneEventPublisher>();
EventBrokerInfoPolicy policy = new EventBrokerInfoPolicy();
policy.AddPublication("paste", "Pasting");
context.Policies.Set<IEventBrokerInfoPolicy>(policy, buildKey);
try
{
OneEventPublisher existing = new OneEventPublisher();
context.ExecuteBuildUp(buildKey, existing);
}
catch (Exception)
{
// If we got here, we're Ok, this is expected.
return;
}
Assert.Fail("No exception occured");
}
public void StrategyProperlyWiresEvents()
{
MockBuilderContext context = CreateContext();
NamedTypeBuildKey buildKey = NamedTypeBuildKey.Make<ClipboardManager>();
EventBroker broker = new EventBroker();
var brokerLifetime = new ExternallyControlledLifetimeManager();
brokerLifetime.SetValue(broker);
context.Policies.Set<ILifetimePolicy>(brokerLifetime, NamedTypeBuildKey.Make<EventBroker>());
EventBrokerInfoPolicy policy = new EventBrokerInfoPolicy();
policy.AddPublication("cut", "Cut");
policy.AddPublication("copy", "Copy");
policy.AddPublication("paste", "Paste");
policy.AddSubscription("copy", typeof(ClipboardManager).GetMethod("OnCopy"));
policy.AddSubscription("clipboard data available",
typeof(ClipboardManager).GetMethod("OnClipboardDataAvailable"));
context.Policies.Set<IEventBrokerInfoPolicy>(policy, buildKey);
ClipboardManager existing = new ClipboardManager();
context.ExecuteBuildUp(buildKey, existing);
List<string> registeredEvents = new List<string>(broker.RegisteredEvents);
registeredEvents.Sort();
List<string> expectedEvents = new List<string>(new string[]
{
"cut",
"copy",
"paste",
"clipboard data available"
});
expectedEvents.Sort();
CollectionAssert.AreEqual(expectedEvents, registeredEvents);
}
