anx.framework/Visual Studio/MPF11/Dev11/Tests/UnitTests/ProjectEventsTest.cs

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using System;
using System.Reflection;
using Microsoft.VisualStudio.Project;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace Microsoft.VisualStudio.Project.UnitTests
{
    public static class ProjectEventsUtilities
    {
        private static ConstructorInfo afterProjectFileOpenedEventArgsCtr;
        public static AfterProjectFileOpenedEventArgs CreateAfterProjectFileOpenedEventArgs(bool added)
        {
            if(null == afterProjectFileOpenedEventArgsCtr)
            {
                //afterProjectFileOpenedEventArgsCtr = typeof(AfterProjectFileOpenedEventArgs).GetConstructor(new Type[] { typeof(bool) });
                afterProjectFileOpenedEventArgsCtr = typeof(AfterProjectFileOpenedEventArgs).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, null, new Type[] { typeof(bool) }, null);
            }
            return afterProjectFileOpenedEventArgsCtr.Invoke(new object[] { added }) as AfterProjectFileOpenedEventArgs;
        }

        private static ConstructorInfo beforeProjectFileClosedEventArgsCtr;
        public static BeforeProjectFileClosedEventArgs CreateBeforeProjectFileClosedEventArgs(bool removed)
        {
            if(null == beforeProjectFileClosedEventArgsCtr)
            {
                beforeProjectFileClosedEventArgsCtr = typeof(BeforeProjectFileClosedEventArgs).GetConstructor(new Type[] { typeof(bool) });
            }
            return beforeProjectFileClosedEventArgsCtr.Invoke(new object[] { removed }) as BeforeProjectFileClosedEventArgs;
        }
    }

    [TestClass]
    public class ProjectEventsTest
    {
        private class ProjectEventsSource : IProjectEvents, IDisposable
        {
            public enum ProjectEventsSinkType
            {
                AfterOpened,
                BeforeClosed,
                AnyEvent
            }
            public event EventHandler<AfterProjectFileOpenedEventArgs> AfterProjectFileOpened;
            public event EventHandler<BeforeProjectFileClosedEventArgs> BeforeProjectFileClosed;

            public void SignalOpenStatus(bool isOpened)
            {
                if(isOpened)
                {
                    if(null != AfterProjectFileOpened)
                    {
                        AfterProjectFileOpened(this, ProjectEventsUtilities.CreateAfterProjectFileOpenedEventArgs(true));
                    }
                }
                else
                {
                    if(null != BeforeProjectFileClosed)
                    {
                        BeforeProjectFileClosed(this, ProjectEventsUtilities.CreateBeforeProjectFileClosedEventArgs(true));
                    }
                }
            }

            public bool IsSinkRegister(ProjectEventsSinkType sinkType)
            {
                if(ProjectEventsSinkType.AfterOpened == sinkType)
                {
                    return (null != AfterProjectFileOpened);
                }
                if(ProjectEventsSinkType.BeforeClosed == sinkType)
                {
                    return (null != BeforeProjectFileClosed);
                }
                return (null != AfterProjectFileOpened) || (null != BeforeProjectFileClosed);
            }

            public void Dispose()
            {
                Assert.IsFalse(IsSinkRegister(ProjectEventsSinkType.AnyEvent), "ProjectEvents sink registered at shutdown.");
            }
        }

        private static FieldInfo projectOpened;
        private static bool IsProjectOpened(ProjectNode project)
        {
            if(null == projectOpened)
            {
                projectOpened = typeof(VisualStudio.Project.ProjectNode).GetField("projectOpened", BindingFlags.Instance | BindingFlags.NonPublic);
            }
            return (bool)projectOpened.GetValue(project);
        }

        [TestMethod]
        public void SetOpenStatusTest()
        {
            using(ProjectEventsSource eventSource = new ProjectEventsSource())
            {
                ProjectTestClass project = new ProjectTestClass();
                IProjectEventsProvider eventProvider = project as IProjectEventsProvider;
                Assert.IsNotNull(eventProvider, "Project class does not implements IProjectEventsProvider.");
                Assert.IsFalse(IsProjectOpened(project), "Project is opened right after its creation.");
                eventProvider.ProjectEventsProvider = eventSource;
                eventSource.SignalOpenStatus(true);
                Assert.IsTrue(IsProjectOpened(project), "Project is not opened after the AfterProjectFileOpened is signaled.");
                project.Close();
            }
        }

        [TestMethod]
        public void SetMultipleSource()
        {
            using(ProjectEventsSource firstSource = new ProjectEventsSource())
            {
                using(ProjectEventsSource secondSource = new ProjectEventsSource())
                {
                    ProjectTestClass project = new ProjectTestClass();
                    IProjectEventsProvider eventProvider = project as IProjectEventsProvider;
                    Assert.IsNotNull(eventProvider, "Project class does not implements IProjectEventsProvider.");
                    eventProvider.ProjectEventsProvider = firstSource;
                    eventProvider.ProjectEventsProvider = secondSource;
                    Assert.IsFalse(IsProjectOpened(project));
                    firstSource.SignalOpenStatus(true);
                    Assert.IsFalse(IsProjectOpened(project));
                    secondSource.SignalOpenStatus(true);
                    Assert.IsTrue(IsProjectOpened(project));
                    project.Close();
                }
            }
        }

        [TestMethod]
        public void SetNullSource()
        {
            ProjectTestClass project = new ProjectTestClass();
            IProjectEventsProvider eventProvider = project as IProjectEventsProvider;
            Assert.IsNotNull(eventProvider, "Project class does not implements IProjectEventsProvider.");
            eventProvider.ProjectEventsProvider = null;
            project.Close();
        }
    }
}