public async Task MsBuildModelWatcher_Dispose_CallsUnsubscribe()
{
var threadingService = IProjectThreadingServiceFactory.Create();
var fileSystem = new IFileSystemMock();
HandlerCallback subscription = null;
HandlerCallback unsubscription = null;
var xml = @"<Project></Project>";
var file = @"C:\Test\Test.proj";
var msbuildAccessor = IMsBuildAccessorFactory.ImplementGetProjectXmlAndXmlChangedEvents(xml, newSub => subscription = newSub,
sub => unsubscription = sub);
var project = IUnconfiguredProjectFactory.Create();
var watcher = new MsBuildModelWatcher(threadingService, fileSystem, msbuildAccessor, project);
await watcher.InitializeAsync(file);
Assert.NotNull(subscription);
watcher.XmlHandler(xml);
Assert.True(fileSystem.FileExists(file));
Assert.Equal(xml, fileSystem.ReadAllText(file));
watcher.Dispose();
Assert.NotNull(unsubscription);
Assert.Equal(subscription, unsubscription);
// Ensure multiple calls to dispose don't cause multiple calls to unsubscribe
watcher.Dispose();
Mock.Get(msbuildAccessor).Verify(m => m.UnsubscribeProjectXmlChangedEventAsync(project, unsubscription), Times.Once);
}
public async Task MsBuildModelWatcher_InitializeAsync_SetsUpSubscription()
{
var threadingService = IProjectThreadingServiceFactory.Create();
var fileSystem = new IFileSystemMock();
HandlerCallback subscription = null;
var msbuildAccessor = IMsBuildAccessorFactory.ImplementGetProjectXmlAndXmlChangedEvents("", newSub => subscription = newSub,
sub => Assert.False(true, "Should not have called Unsubscribe in this test, as dispose isn't called."));
var project = IUnconfiguredProjectFactory.Create();
var watcher = new MsBuildModelWatcher(threadingService, fileSystem, msbuildAccessor, project);
await watcher.InitializeAsync(@"C:\Test\Test.proj");
Assert.NotNull(subscription);
Assert.Equal(watcher.ProjectXmlHandler, subscription);
Mock.Get(msbuildAccessor).Verify(m => m.SubscribeProjectXmlChangedEventAsync(project, subscription), Times.Once);
Assert.Equal(0, fileSystem.Files.Count);
}
public async Task MsBuildModelWatcher_HandlerCalled_WritesNewXmlToDisk()
{
var threadingService = IProjectThreadingServiceFactory.Create();
var fileSystem = new IFileSystemMock();
HandlerCallback subscription = null;
var xml = @"<Project></Project>";
var file = @"C:\Test\Test.proj";
var msbuildAccessor = IMsBuildAccessorFactory.ImplementGetProjectXmlAndXmlChangedEvents(xml, newSub => subscription = newSub,
sub => Assert.False(true, "Should not have called Unsubscribe in this test, as dispose isn't called."));
var project = IUnconfiguredProjectFactory.Create();
var watcher = new MsBuildModelWatcher(threadingService, fileSystem, msbuildAccessor, project);
await watcher.InitializeAsync(file);
Assert.NotNull(subscription);
watcher.XmlHandler(xml);
Assert.True(fileSystem.FileExists(file));
Assert.Equal(xml, fileSystem.ReadAllText(file));
}