public void GetExtensionsReturnsExtensionsCollection()
{
const string BookmarkName = "Test";
var activity = new Sequence
{
Activities =
{
new ActivityExtensionTest { AddExtensionProvider = true },
new TestBookmark<int> { BookmarkName = BookmarkName },
new ActivityExtensionTest { AddExtensionProvider = true },
}
};
var traceTrackingParticipant = new TraceTrackingParticipant();
var listTrackingParticipant = new ListTrackingParticipant();
var workflowApplication = new WorkflowApplication(activity);
// Add a couple of singleton extensions
workflowApplication.Extensions.Add(traceTrackingParticipant);
workflowApplication.Extensions.Add(listTrackingParticipant);
// foreach (var extension in workflowApplication.Extensions)
// {
// Doh! this won't work
// foreach statement cannot operate on variables of type
// 'System.Activities.Hosting.WorkflowInstanceExtensionManager'
// because 'System.Activities.Hosting.WorkflowInstanceExtensionManager'
// does not contain a public definition for 'GetEnumerator'
// }
// Run it so that the activity will create an extension
workflowApplication.RunEpisode(BookmarkName, Constants.Timeout);
// Resume and run to completion
workflowApplication.ResumeEpisodeBookmark(BookmarkName, 1);
// Now I can get the Singleton Extensions as a collection
var extensions = workflowApplication.GetSingletonExtensions();
Assert.IsNotNull(extensions);
Assert.AreEqual(2, extensions.Count);
// Note: Extensions created by AddDefaultExtensionProvider will not appear in the collection
Assert.IsTrue(extensions.Contains(traceTrackingParticipant));
Assert.IsTrue(extensions.Contains(listTrackingParticipant));
foreach (var extension in extensions)
{
Debug.WriteLine("Found singleton extension " + extension);
}
}
