ProjectIntegratorTest.cs :  » Build-Systems » CruiseControl.NET » ThoughtWorks » CruiseControl » UnitTests » Core » C# / CSharp Open Source

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C# / CSharp Open Source » Build Systems » CruiseControl.NET 
CruiseControl.NET » ThoughtWorks » CruiseControl » UnitTests » Core » ProjectIntegratorTest.cs
using System.IO;
using System.Reflection;
using NMock.Constraints;
using NUnit.Framework;
using ThoughtWorks.CruiseControl.Core;
using ThoughtWorks.CruiseControl.Core.Config;
using ThoughtWorks.CruiseControl.Core.Queues;
using ThoughtWorks.CruiseControl.Remote;
using ThoughtWorks.CruiseControl.UnitTests.UnitTestUtils;
using ThoughtWorks.CruiseControl.Remote.Events;
using System.Threading;
using System;
using System.Collections.Generic;

namespace ThoughtWorks.CruiseControl.UnitTests.Core{
  [TestFixture]
  public class ProjectIntegratorTest : IntegrationFixture
  {
    private const string TestQueueName = "projectQueue";
      private static readonly string tempDir = Path.GetTempPath() + Assembly.GetExecutingAssembly().FullName + "\\";
    private LatchMock integrationTriggerMock;
    private LatchMock projectMock;
    private ProjectIntegrator integrator;
    private IntegrationQueueSet integrationQueues;
    private IIntegrationQueue integrationQueue;

        private readonly string tempWorkingDir1 = tempDir + "tempWorkingDir1";
        private readonly string tempArtifactDir1 = tempDir + "tempArtifactDir1";

    [SetUp]
    public void SetUp()
    {
      integrationTriggerMock = new LatchMock(typeof (ITrigger));
      integrationTriggerMock.Strict = true;
      projectMock = new LatchMock(typeof (IProject));
      projectMock.Strict = true;
      projectMock.SetupResult("Name", "project");
      projectMock.SetupResult("QueueName", TestQueueName);
      projectMock.SetupResult("QueuePriority", 0);
      projectMock.SetupResult("Triggers", integrationTriggerMock.MockInstance);
            projectMock.SetupResult("WorkingDirectory", tempWorkingDir1);
            projectMock.SetupResult("ArtifactDirectory", tempArtifactDir1);

      integrationQueues = new IntegrationQueueSet();
            integrationQueues.Add(TestQueueName, new DefaultQueueConfiguration(TestQueueName));
      integrationQueue = integrationQueues[TestQueueName];
      integrator = new ProjectIntegrator((IProject) projectMock.MockInstance, integrationQueue);
    }

    [TearDown]
    public void TearDown()
    {
      if (integrator != null)
      {
        integrator.Stop();
        integrator.WaitForExit();
      }
            if (Directory.Exists(tempWorkingDir1))
                Directory.Delete(tempWorkingDir1, true);
            if (Directory.Exists(tempArtifactDir1))
                Directory.Delete(tempArtifactDir1, true);
        }

    private void VerifyAll()
    {
      integrationTriggerMock.Verify();
      projectMock.Verify();
    }

    [Test]
    public void ShouldContinueRunningIfNotToldToStop()
    {
      integrationTriggerMock.SetupResultAndSignal("Fire", null);
      projectMock.ExpectNoCall("Integrate", typeof (IntegrationRequest));
      integrationTriggerMock.ExpectNoCall("IntegrationCompleted");

      integrator.Start();
      integrationTriggerMock.WaitForSignal();
      Assert.AreEqual(ProjectIntegratorState.Running, integrator.State);
      VerifyAll();
    }

    [Test]
    public void ShouldStopWhenStoppedExternally()
    {
      integrationTriggerMock.SetupResultAndSignal("Fire", null);
      projectMock.ExpectNoCall("NotifyPendingState");
      projectMock.ExpectNoCall("Integrate", typeof (IntegrationRequest));
      projectMock.ExpectNoCall("NotifySleepingState");
      integrationTriggerMock.ExpectNoCall("IntegrationCompleted");

      integrator.Start();
      integrationTriggerMock.WaitForSignal();
      Assert.AreEqual(ProjectIntegratorState.Running, integrator.State);

      integrator.Stop();
      integrator.WaitForExit();
      Assert.AreEqual(ProjectIntegratorState.Stopped, integrator.State);
      VerifyAll();
    }

    [Test]
    public void StartMultipleTimes()
    {
      integrationTriggerMock.SetupResultAndSignal("Fire", null);
      projectMock.ExpectNoCall("NotifyPendingState");
      projectMock.ExpectNoCall("Integrate", typeof (IntegrationRequest));
      projectMock.ExpectNoCall("NotifySleepingState");
      integrationTriggerMock.ExpectNoCall("IntegrationCompleted");

      integrator.Start();
      integrator.Start();
      integrator.Start();
      integrationTriggerMock.WaitForSignal();
      Assert.AreEqual(ProjectIntegratorState.Running, integrator.State);
      integrator.Stop();
      integrator.WaitForExit();
      Assert.AreEqual(ProjectIntegratorState.Stopped, integrator.State);
      VerifyAll();
    }

    [Test]
    public void RestartIntegrator()
    {
      integrationTriggerMock.SetupResultAndSignal("Fire", null);
      projectMock.ExpectNoCall("NotifyPendingState");
      projectMock.ExpectNoCall("Integrate", typeof (IntegrationRequest));
      projectMock.ExpectNoCall("NotifySleepingState");
      integrationTriggerMock.ExpectNoCall("IntegrationCompleted");

      integrator.Start();
      integrationTriggerMock.WaitForSignal();
      integrator.Stop();
      integrator.WaitForExit();

      integrationTriggerMock.ResetLatch();
      integrator.Start();
      integrationTriggerMock.WaitForSignal();
      integrator.Stop();
      integrator.WaitForExit();
      VerifyAll();
    }

    [Test]
    public void StopUnstartedIntegrator()
    {
      integrationTriggerMock.ExpectNoCall("Fire");
      projectMock.ExpectNoCall("NotifyPendingState");
      projectMock.ExpectNoCall("Integrate", typeof (IntegrationRequest));
      projectMock.ExpectNoCall("NotifySleepingState");
      integrationTriggerMock.ExpectNoCall("IntegrationCompleted");

      integrator.Stop();
      Assert.AreEqual(ProjectIntegratorState.Stopped, integrator.State);
      VerifyAll();
    }

    [Test]
    public void VerifyStateAfterException()
    {
      string exceptionMessage = "Intentional exception";

      integrationTriggerMock.ExpectAndReturn("Fire", ForceBuildRequest());
      projectMock.Expect("NotifyPendingState");
      projectMock.ExpectAndThrow("Integrate", new CruiseControlException(exceptionMessage), new HasForceBuildCondition());
      projectMock.ExpectAndSignal("NotifySleepingState");
            projectMock.SetupResult("MaxSourceControlRetries", 5);
            projectMock.SetupResult("SourceControlErrorHandling", ThoughtWorks.CruiseControl.Core.Sourcecontrol.Common.SourceControlErrorHandlingPolicy.ReportEveryFailure);
            integrationTriggerMock.Expect("IntegrationCompleted");

      integrator.Start();
      projectMock.WaitForSignal();
      Assert.AreEqual(ProjectIntegratorState.Running, integrator.State);
      integrator.Stop();
      integrator.WaitForExit();
      Assert.AreEqual(ProjectIntegratorState.Stopped, integrator.State);
      VerifyAll();
    }

    [Test]
    public void Abort()
    {
      integrationTriggerMock.SetupResultAndSignal("Fire", null);
      projectMock.ExpectNoCall("NotifyPendingState");
      projectMock.ExpectNoCall("Integrate", typeof (IntegrationRequest));
      projectMock.ExpectNoCall("NotifySleepingState");
      integrationTriggerMock.ExpectNoCall("IntegrationCompleted");

      integrator.Start();
      integrationTriggerMock.WaitForSignal();
      Assert.AreEqual(ProjectIntegratorState.Running, integrator.State);
      integrator.Abort();
      integrator.WaitForExit();
      Assert.AreEqual(ProjectIntegratorState.Stopped, integrator.State);
      VerifyAll();
    }

    [Test]
    public void TerminateWhenProjectIsntStarted()
    {
      integrationTriggerMock.SetupResultAndSignal("Fire", null);
      projectMock.ExpectNoCall("NotifyPendingState");
      projectMock.ExpectNoCall("Integrate", typeof (IntegrationRequest));
      projectMock.ExpectNoCall("NotifySleepingState");
      integrationTriggerMock.ExpectNoCall("IntegrationCompleted");

      integrator.Abort();
      Assert.AreEqual(ProjectIntegratorState.Stopped, integrator.State);
      VerifyAll();
    }

    [Test]
    public void TerminateCalledTwice()
    {
      integrationTriggerMock.SetupResultAndSignal("Fire", null);
      projectMock.ExpectNoCall("NotifyPendingState");
      projectMock.ExpectNoCall("Integrate", typeof (IntegrationRequest));
      projectMock.ExpectNoCall("NotifySleepingState");
      integrationTriggerMock.ExpectNoCall("IntegrationCompleted");

      integrator.Start();
      integrationTriggerMock.WaitForSignal();
      Assert.AreEqual(ProjectIntegratorState.Running, integrator.State);
      integrator.Abort();
      integrator.Abort();
      VerifyAll();
    }

    [Test]
    public void ForceBuild()
    {
      integrationTriggerMock.ExpectNoCall("Fire");
      projectMock.Expect("Integrate", new HasForceBuildCondition());
      projectMock.Expect("NotifyPendingState");
      projectMock.ExpectAndSignal("NotifySleepingState");
      projectMock.ExpectNoCall("Integrate", typeof (IntegrationRequest));
            projectMock.SetupResult("MaxSourceControlRetries", 5);
            projectMock.SetupResult("SourceControlErrorHandling", ThoughtWorks.CruiseControl.Core.Sourcecontrol.Common.SourceControlErrorHandlingPolicy.ReportEveryFailure);
      integrationTriggerMock.ExpectAndSignal("IntegrationCompleted");
            var parameters = new Dictionary<string, string>();
            integrator.ForceBuild("BuildForcer", parameters);
      integrationTriggerMock.WaitForSignal();
      projectMock.WaitForSignal();
      VerifyAll();
    }

    [Test]
    public void RequestIntegration()
    {
            IntegrationRequest request = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");
      projectMock.Expect("Integrate", request);
      projectMock.ExpectAndSignal("NotifySleepingState");
            projectMock.SetupResult("MaxSourceControlRetries", 5);
            projectMock.SetupResult("SourceControlErrorHandling", ThoughtWorks.CruiseControl.Core.Sourcecontrol.Common.SourceControlErrorHandlingPolicy.ReportEveryFailure);
            integrationTriggerMock.ExpectAndSignal("IntegrationCompleted");
      integrator.Request(request);
      integrationTriggerMock.WaitForSignal();
      projectMock.WaitForSignal();
      Assert.AreEqual(ProjectIntegratorState.Running, integrator.State);
      VerifyAll();
    }

    [Test]
    public void ShouldClearRequestQueueAsSoonAsRequestIsProcessed()
    {
            IntegrationRequest request = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");
      projectMock.Expect("Integrate", request);
      projectMock.ExpectAndSignal("NotifySleepingState");
            projectMock.SetupResult("MaxSourceControlRetries", 5);
            projectMock.SetupResult("SourceControlErrorHandling", ThoughtWorks.CruiseControl.Core.Sourcecontrol.Common.SourceControlErrorHandlingPolicy.ReportEveryFailure);
            integrationTriggerMock.Expect("IntegrationCompleted");
      integrationTriggerMock.ExpectAndReturnAndSignal("Fire", null);

      integrator.Request(request);
      projectMock.WaitForSignal();
      integrationTriggerMock.WaitForSignal();
      VerifyAll();
    }

    [Test]
    public void CancelPendingRequestDoesNothingForNoPendingItems()
    {
      int queuedItemCount = integrationQueue.GetQueuedIntegrations().Length;
      integrator.CancelPendingRequest();
      Assert.AreEqual(queuedItemCount, integrationQueue.GetQueuedIntegrations().Length);

      VerifyAll();
    }

    [Test]
    public void CancelPendingRequestRemovesPendingItems()
    {
      IProject project = (IProject) projectMock.MockInstance;

            IntegrationRequest request1 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");
      integrationQueue.Enqueue(new IntegrationQueueItem(project, request1, integrator));

            IntegrationRequest request2 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.ExpectNoCall("NotifyPendingState");
      integrationQueue.Enqueue(new IntegrationQueueItem(project, request2, integrator));

      int queuedItemCount = integrationQueue.GetQueuedIntegrations().Length;
      Assert.AreEqual(2, queuedItemCount);
      integrationTriggerMock.Expect("IntegrationCompleted");

      integrator.CancelPendingRequest();

      queuedItemCount = integrationQueue.GetQueuedIntegrations().Length;
      Assert.AreEqual(1, queuedItemCount);

      VerifyAll();
    }

    [Test]
    public void FirstBuildOfProjectShouldSetToPending()
    {
      IProject project = (IProject) projectMock.MockInstance;

            IntegrationRequest request1 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");

      integrationQueue.Enqueue(new IntegrationQueueItem(project, request1, integrator));
      VerifyAll();
    }

    [Test]
    public void SecondBuildOfProjectShouldNotSetToPendingWhenQueued()
    {
      IProject project = (IProject) projectMock.MockInstance;

            IntegrationRequest request1 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");

            IntegrationRequest request2 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.ExpectNoCall("NotifyPendingState");

      integrationQueue.Enqueue(new IntegrationQueueItem(project, request1, integrator));
      integrationQueue.Enqueue(new IntegrationQueueItem(project, request2, integrator));
      VerifyAll();
    }

    [Test]
    public void CompletingOnlyQueueBuildGoesToSleepingState()
    {
      IProject project = (IProject) projectMock.MockInstance;

            IntegrationRequest request1 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");
      integrationTriggerMock.Expect("IntegrationCompleted");
      projectMock.Expect("NotifySleepingState");

      integrationQueue.Enqueue(new IntegrationQueueItem(project, request1, integrator));
      // Simulate first build completed by dequeuing it to invoke notifcation.
      integrationQueue.Dequeue();
      VerifyAll();
    }

    [Test]
    public void CompletingWithPendingQueueBuildGoesToPendingState()
    {
      IProject project = (IProject) projectMock.MockInstance;

            IntegrationRequest request1 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");

            IntegrationRequest request2 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);

      // As first build completes we go to pending as still another build on queue
      integrationTriggerMock.Expect("IntegrationCompleted");
      projectMock.Expect("NotifyPendingState");

      integrationQueue.Enqueue(new IntegrationQueueItem(project, request1, integrator));
      integrationQueue.Enqueue(new IntegrationQueueItem(project, request2, integrator));
      // Simulate first build completed by dequeuing it to invoke notifcation.
      integrationQueue.Dequeue();

      VerifyAll();
    }

    [Test]
    public void CompletingAllPendingQueueBuildsGoesToPendingState()
    {
      IProject project = (IProject) projectMock.MockInstance;

            IntegrationRequest request1 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");

            IntegrationRequest request2 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      // As first build completes we go to pending as still another build on queue
      integrationTriggerMock.Expect("IntegrationCompleted");
      projectMock.Expect("NotifyPendingState");
      // As second build completes, we can go to sleeping state
      integrationTriggerMock.Expect("IntegrationCompleted");
      projectMock.Expect("NotifySleepingState");

      integrationQueue.Enqueue(new IntegrationQueueItem(project, request1, integrator));
      integrationQueue.Enqueue(new IntegrationQueueItem(project, request2, integrator));
      // Simulate first build completed by dequeuing it to invoke notifcation.
      integrationQueue.Dequeue();
      // Simulate second build completed by dequeuing it to invoke notifcation.
      integrationQueue.Dequeue();
      
      VerifyAll();
    }

    [Test]
    public void CancellingAPendingRequestWhileBuildingIgnoresState()
    {
      IProject project = (IProject) projectMock.MockInstance;

            IntegrationRequest request1 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");

            IntegrationRequest request2 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      // As pending build is cancelled we should not alter state
      projectMock.ExpectNoCall("NotifyPendingState");
      projectMock.ExpectNoCall("NotifySleepingState");
      integrationTriggerMock.Expect("IntegrationCompleted");

      integrationQueue.Enqueue(new IntegrationQueueItem(project, request1, integrator));
      integrationQueue.Enqueue(new IntegrationQueueItem(project, request2, integrator));
      // Cancel second build project on queue
      integrator.CancelPendingRequest();
      
      VerifyAll();
    }

    [Test]
    public void CancellingAPendingRequestWhileNotBuildingGoesToSleeping()
    {
      LatchMock otherProjectMock = new LatchMock(typeof (IProject));
      otherProjectMock.Strict = true;
      otherProjectMock.SetupResult("Name", "otherProject");
      otherProjectMock.SetupResult("QueueName", TestQueueName);
      otherProjectMock.SetupResult("QueuePriority", 0);
      otherProjectMock.SetupResult("Triggers", integrationTriggerMock.MockInstance);
            otherProjectMock.SetupResult("WorkingDirectory", tempDir + "tempWorkingDir2");
            otherProjectMock.SetupResult("ArtifactDirectory", tempDir + "tempArtifactDir2");

      IProject otherProject = (IProject) otherProjectMock.MockInstance;
      IProject project = (IProject) projectMock.MockInstance;

      ProjectIntegrator otherIntegrator = new ProjectIntegrator(otherProject, integrationQueue);
      // Queue up the "otherProject" in the first queue position to build
            IntegrationRequest otherProjectRequest = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      otherProjectMock.Expect("NotifyPendingState");

      // Queue up our test project on the same queue as so it goes to pending
            IntegrationRequest request2 = new IntegrationRequest(BuildCondition.IfModificationExists, "intervalTrigger", null);
      projectMock.Expect("NotifyPendingState");
      // Cancelling the pending request should revert status to sleeping
      projectMock.Expect("NotifySleepingState");
      integrationTriggerMock.Expect("IntegrationCompleted");

      integrationQueue.Enqueue(new IntegrationQueueItem(otherProject, otherProjectRequest, otherIntegrator));
      integrationQueue.Enqueue(new IntegrationQueueItem(project, request2, integrator));
      // Cancel second build project on queue
      integrator.CancelPendingRequest();
      
      otherProjectMock.Verify();
      VerifyAll();
    }

        [Test]
        public void FiresIntegrationEvents()
        {
            string enforcer = "BuildForcer";
            IntegrationResult result = new IntegrationResult();
            result.ProjectName = (projectMock.MockInstance as IProject).Name;
            result.Status = IntegrationStatus.Success;
            // The following latch is needed to ensure the end assertions are not called before
            // the events have been fired. Because of the multi-threaded nature of the integrators
            // this can happen without any of the other latches being affected.
            ManualResetEvent latch = new ManualResetEvent(false);

            bool eventIntegrationStartedFired = false;
            bool eventIntegrationCompletedFired = false;
            IntegrationStatus status = IntegrationStatus.Unknown;
            integrator.IntegrationStarted += delegate(object o, IntegrationStartedEventArgs a)
            {
                eventIntegrationStartedFired = true;
            };
            integrator.IntegrationCompleted += delegate(object o, IntegrationCompletedEventArgs a)
            {
                eventIntegrationCompletedFired = true;
                status = a.Status;
                latch.Set();
            };

            integrationTriggerMock.ExpectNoCall("Fire");
            projectMock.ExpectAndReturn("Integrate", result, new HasForceBuildCondition());
            projectMock.Expect("NotifyPendingState");
            projectMock.ExpectAndSignal("NotifySleepingState");
            projectMock.ExpectNoCall("Integrate", typeof(IntegrationRequest));
            projectMock.SetupResult("MaxSourceControlRetries", 5);
            projectMock.SetupResult("SourceControlErrorHandling", ThoughtWorks.CruiseControl.Core.Sourcecontrol.Common.SourceControlErrorHandlingPolicy.ReportEveryFailure);
            integrationTriggerMock.ExpectAndSignal("IntegrationCompleted");
            var parameters = new Dictionary<string, string>();
            integrator.ForceBuild(enforcer, parameters);
            integrationTriggerMock.WaitForSignal();
            projectMock.WaitForSignal();
            VerifyAll();

            latch.WaitOne(2000, false);
            Assert.IsTrue(eventIntegrationStartedFired);
            Assert.IsTrue(eventIntegrationCompletedFired);
            Assert.AreEqual(IntegrationStatus.Success, status);
        }

        [Test]
        public void IntegrationCanBeDelayed()
        {
            string enforcer = "BuildForcer";
            IntegrationResult result = new IntegrationResult();
            result.ProjectName = (projectMock.MockInstance as IProject).Name;
            result.Status = IntegrationStatus.Success;
            // The following latch is needed to ensure the end assertions are not called before
            // the events have been fired. Because of the multi-threaded nature of the integrators
            // this can happen without any of the other latches being affected.
            ManualResetEvent latch = new ManualResetEvent(false);

            bool eventIntegrationStartedFired = false;
            bool eventIntegrationCompletedFired = false;
            bool delayIntegration = true;
            IntegrationStatus status = IntegrationStatus.Unknown;
            integrator.IntegrationStarted += delegate(object o, IntegrationStartedEventArgs a)
            {
                eventIntegrationStartedFired = true;
                if (delayIntegration)
                {
                    a.Result = IntegrationStartedEventArgs.EventResult.Delay;
                    delayIntegration = !delayIntegration;
                }
            };
            integrator.IntegrationCompleted += delegate(object o, IntegrationCompletedEventArgs a)
            {
                eventIntegrationCompletedFired = true;
                status = a.Status;
                latch.Set();
            };

            integrationTriggerMock.ExpectNoCall("Fire");
            projectMock.ExpectAndReturn("Integrate", result, new HasForceBuildCondition());
            projectMock.Expect("NotifyPendingState");
            projectMock.ExpectAndSignal("NotifySleepingState");
            projectMock.ExpectNoCall("Integrate", typeof(IntegrationRequest));
            projectMock.SetupResult("MaxSourceControlRetries", 5);
            projectMock.SetupResult("SourceControlErrorHandling", ThoughtWorks.CruiseControl.Core.Sourcecontrol.Common.SourceControlErrorHandlingPolicy.ReportEveryFailure);
            integrationTriggerMock.ExpectAndSignal("IntegrationCompleted");
            var parameters = new Dictionary<string, string>();
            integrator.ForceBuild(enforcer, parameters);
            integrationTriggerMock.WaitForSignal();
            projectMock.WaitForSignal();
            VerifyAll();

            latch.WaitOne(2000, false);
            Assert.IsTrue(eventIntegrationStartedFired);
            Assert.IsTrue(eventIntegrationCompletedFired);
            Assert.AreEqual(IntegrationStatus.Success, status);
        }

        [Test]
        public void IntegrationCanBeCancelled()
        {
            string enforcer = "BuildForcer";
            IntegrationResult result = new IntegrationResult();
            result.ProjectName = (projectMock.MockInstance as IProject).Name;
            result.Status = IntegrationStatus.Success;
            // The following latch is needed to ensure the end assertions are not called before
            // the events have been fired. Because of the multi-threaded nature of the integrators
            // this can happen without any of the other latches being affected.
            ManualResetEvent latch = new ManualResetEvent(false);

            bool eventIntegrationStartedFired = false;
            bool eventIntegrationCompletedFired = false;
            IntegrationStatus status = IntegrationStatus.Unknown;
            integrator.IntegrationStarted += delegate(object o, IntegrationStartedEventArgs a)
            {
                eventIntegrationStartedFired = true;
                a.Result = IntegrationStartedEventArgs.EventResult.Cancel;
            };
            integrator.IntegrationCompleted += delegate(object o, IntegrationCompletedEventArgs a)
            {
                eventIntegrationCompletedFired = true;
                status = a.Status;
                latch.Set();
            };

            integrationTriggerMock.ExpectNoCall("Fire");
            projectMock.ExpectNoCall("Integrate", typeof(IntegrationRequest));
            projectMock.Expect("NotifyPendingState");
            projectMock.ExpectAndSignal("NotifySleepingState");
            projectMock.ExpectNoCall("Integrate", typeof(IntegrationRequest));
            projectMock.SetupResult("MaxSourceControlRetries", 5);
            projectMock.SetupResult("SourceControlErrorHandling", ThoughtWorks.CruiseControl.Core.Sourcecontrol.Common.SourceControlErrorHandlingPolicy.ReportEveryFailure);
            integrationTriggerMock.ExpectAndSignal("IntegrationCompleted");
            var parameters = new Dictionary<string, string>();
            integrator.ForceBuild(enforcer, parameters);
            integrationTriggerMock.WaitForSignal();
            projectMock.WaitForSignal();
            VerifyAll();

            latch.WaitOne(2000, false);
            Assert.IsTrue(eventIntegrationStartedFired);
            Assert.IsTrue(eventIntegrationCompletedFired);
            Assert.AreEqual(IntegrationStatus.Cancelled, status);
        }
    }

  public class HasForceBuildCondition : BaseConstraint
  {
    public override bool Eval(object val)
    {
      return ((IntegrationRequest) val).BuildCondition == BuildCondition.ForceBuild;
    }

    public override string Message
    {
      get { return "IntegrationRequest is not ForceBuild."; }
    }
  }
}
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