public void WhenEmailsAreReturned_ThenViewModelIsPopulated()
{
var asyncResultMock = new Mock<IAsyncResult>();
var emailServiceMock = new Mock<IEmailService>(MockBehavior.Strict);
AsyncCallback callback = null;
emailServiceMock
.Setup(svc => svc.BeginGetEmailDocuments(It.IsAny<AsyncCallback>(), null))
.Callback<AsyncCallback, object>((ac, o) => callback = ac)
.Returns(asyncResultMock.Object);
var email = new EmailDocument { };
emailServiceMock
.Setup(svc => svc.EndGetEmailDocuments(asyncResultMock.Object))
.Returns(new[] { email });
var viewModel = new InboxViewModel(emailServiceMock.Object, new Mock<IRegionManager>().Object);
this.EnqueueConditional(() => callback != null);
this.EnqueueCallback(
() =>
{
callback(asyncResultMock.Object);
});
this.EnqueueCallback(
() =>
{
CollectionAssert.AreEqual(new[] { email }, viewModel.Messages.Cast<EmailDocument>().ToArray());
emailServiceMock.VerifyAll();
});
this.EnqueueTestComplete();
}
public IAsyncResult BeginSendEmailDocument(EmailDocument email, AsyncCallback callback, object userState)
{
var asyncResult = new AsyncResult<object>(callback, userState);
ThreadPool.QueueUserWorkItem(
o =>
{
Thread.Sleep(500);
asyncResult.SetComplete(null, false);
});
return asyncResult;
}
public void WhenNavigatedToWithAReplyToQueryParameter_ThenRepliesToTheAppropriateMessage()
{
var replyToEmail = new EmailDocument { From = "*****@*****.**", To = "", Subject = "", Text = "" };
var emailServiceMock = new Mock<IEmailService>();
emailServiceMock
.Setup(svc => svc.GetEmailDocument(replyToEmail.Id))
.Returns(replyToEmail);
var viewModel = new ComposeEmailViewModel(emailServiceMock.Object);
var uriQuery = new UriQuery();
uriQuery.Add("ReplyTo", replyToEmail.Id.ToString("N"));
((INavigationAware)viewModel).OnNavigatedTo(new NavigationContext(new Mock<IRegionNavigationService>().Object, new Uri("" + uriQuery.ToString(), UriKind.Relative)));
Assert.AreEqual("*****@*****.**", viewModel.EmailDocument.To);
}
public void WhenAskedCanNavigateForDifferentQuery_ThenReturnsFalse()
{
var email = new EmailDocument();
var emailServiceMock = new Mock<IEmailService>();
emailServiceMock
.Setup(svc => svc.GetEmailDocument(email.Id))
.Returns(email)
.Verifiable();
var viewModel = new EmailViewModel(emailServiceMock.Object);
((INavigationAware)viewModel).OnNavigatedTo(new NavigationContext(new Mock<IRegionNavigationService>().Object, new Uri("location?EmailId=" + email.Id.ToString("N"), UriKind.Relative)));
bool canNavigate =
((INavigationAware)viewModel).IsNavigationTarget(new NavigationContext(new Mock<IRegionNavigationService>().Object, new Uri("location?EmailId=" + Guid.NewGuid().ToString("N"), UriKind.Relative)));
Assert.IsFalse(canNavigate);
}
public void WhenNavigatedTo_ThenRequestsEmailFromService()
{
var email = new EmailDocument();
var emailServiceMock = new Mock<IEmailService>();
emailServiceMock
.Setup(svc => svc.GetEmailDocument(email.Id))
.Returns(email)
.Verifiable();
var viewModel = new EmailViewModel(emailServiceMock.Object);
var notified = false;
viewModel.PropertyChanged += (s, o) => notified = o.PropertyName == "Email";
((INavigationAware)viewModel).OnNavigatedTo(
new NavigationContext(
new Mock<IRegionNavigationService>().Object,
new Uri("location?EmailId=" + email.Id.ToString("N"), UriKind.Relative)));
Assert.IsTrue(notified);
emailServiceMock.VerifyAll();
}
public static Func<bool> SetupGetEmails(Mock<IEmailService> serviceMock, IEnumerable<EmailDocument> result)
{
var asyncResultMock = new Mock<IAsyncResult>();
AsyncCallback callback = null;
serviceMock
.Setup(svc => svc.BeginGetEmailDocuments(It.IsAny<AsyncCallback>(), null))
.Callback<AsyncCallback, object>((ac, o) => callback = ac)
.Returns(asyncResultMock.Object);
var email = new EmailDocument { };
serviceMock
.Setup(svc => svc.EndGetEmailDocuments(asyncResultMock.Object))
.Returns(result);
return () =>
{
if (callback == null)
{
return false;
}
callback(asyncResultMock.Object);
return true;
};
}
public void WhenExecutingTheOpenCommand_ThenNavigatesToEmailView()
{
var email = new EmailDocument();
var emailServiceMock = new Mock<IEmailService>();
Mock<IRegion> regionMock = new Mock<IRegion>();
regionMock
.Setup(x => x.RequestNavigate(new Uri(@"EmailView?EmailId=" + email.Id.ToString("N"), UriKind.Relative), It.IsAny<Action<NavigationResult>>()))
.Callback<Uri, Action<NavigationResult>>((s, c) => c(new NavigationResult(null, true)))
.Verifiable();
Mock<IRegionManager> regionManagerMock = new Mock<IRegionManager>();
regionManagerMock.Setup(x => x.Regions.ContainsRegionWithName(RegionNames.MainContentRegion)).Returns(true);
regionManagerMock.Setup(x => x.Regions[RegionNames.MainContentRegion]).Returns(regionMock.Object);
var viewModel = new InboxViewModel(emailServiceMock.Object, regionManagerMock.Object);
viewModel.OpenMessageCommand.Execute(email);
regionMock.VerifyAll();
}
public void WhenExecutingTheReplyCommand_ThenNavigatesToComposeEmailViewWithId()
{
var email = new EmailDocument();
var emailServiceMock = new Mock<IEmailService>();
AsyncCallback callback = null;
var asyncResultMock = new Mock<IAsyncResult>();
emailServiceMock
.Setup(svc => svc.BeginGetEmailDocuments(It.IsAny<AsyncCallback>(), null))
.Callback<AsyncCallback, object>((ac, o) => callback = ac)
.Returns(asyncResultMock.Object);
emailServiceMock
.Setup(svc => svc.EndGetEmailDocuments(asyncResultMock.Object))
.Returns(new[] { email });
Mock<IRegion> regionMock = new Mock<IRegion>();
regionMock
.Setup(x => x.RequestNavigate(new Uri(@"ComposeEmailView?ReplyTo=" + email.Id.ToString("N"), UriKind.Relative), It.IsAny<Action<NavigationResult>>()))
.Callback<Uri, Action<NavigationResult>>((s, c) => c(new NavigationResult(null, true)))
.Verifiable();
Mock<IRegionManager> regionManagerMock = new Mock<IRegionManager>();
regionManagerMock.Setup(x => x.Regions.ContainsRegionWithName(RegionNames.MainContentRegion)).Returns(true);
regionManagerMock.Setup(x => x.Regions[RegionNames.MainContentRegion]).Returns(regionMock.Object);
var viewModel = new InboxViewModel(emailServiceMock.Object, regionManagerMock.Object);
EnqueueConditional(() => callback != null);
EnqueueCallback(
() =>
{
callback(asyncResultMock.Object);
});
EnqueueConditional(
() =>
{
return !viewModel.Messages.IsEmpty;
});
EnqueueCallback(
() =>
{
viewModel.Messages.MoveCurrentToFirst();
viewModel.ReplyMessageCommand.Execute(null);
regionMock.VerifyAll();
});
EnqueueTestComplete();
}
void INavigationAware.OnNavigatedTo(NavigationContext navigationContext)
{
// todo: 08 - Email OnNavigatedTo : Accessing navigation context.
// When this view model is navigated to it gains access to the
// NavigationContext to determine if we are composing a new email
// or replying to an existing one.
//
// The navigation context offers the context information through
// the Parameters property that is a string/value dictionairy
// built from the navigation Uri.
//
// In this example, we look for the 'ReplyTo' value to
// determine if we are replying to an email and, if so,
// retrieving it's relevant information from the email service
// to pre-populate response values.
//
var emailDocument = new EmailDocument();
var parameters = navigationContext.Parameters;
var replyTo = parameters[ReplyToParameterKey];
Guid replyToId;
if (replyTo != null && Guid.TryParse(replyTo, out replyToId))
{
var replyToEmail = this.emailService.GetEmailDocument(replyToId);
if (replyToEmail != null)
{
emailDocument.To = replyToEmail.From;
emailDocument.Subject = Resources.ResponseMessagePrefix + replyToEmail.Subject;
emailDocument.Text =
Environment.NewLine +
replyToEmail.Text
.Split(Environment.NewLine.ToCharArray())
.Select(l => l.Length > 0 ? Resources.ResponseLinePrefix + l : l)
.Aggregate((l1, l2) => l1 + Environment.NewLine + l2);
}
}
else
{
var to = parameters[ToParameterKey];
if (to != null)
{
emailDocument.To = to;
}
}
this.EmailDocument = emailDocument;
// todo: 09 - Email OnNaviatedTo : capture the navigation service journal
// You can capture the navigation service or navigation service journal
// to navigate the region you're placed in without having to expressly
// know which region to navigate.
this.navigationJournal = navigationContext.NavigationService.Journal;
}
private void OpenMessage(EmailDocument document)
{
// todo: 04 - Open Email: Navigating to a view in a region with context
// When navigating, you can also supply context so the target view or
// viewmodel can orient their data to something appropriate. In this case,
// we've chosen to pass the email id in a name/value pair as part of the Uri.
//
// The EmailViewModel retrieves this context by implementing the INavigationAware
// interface.
//
var builder = new StringBuilder();
builder.Append(EmailViewKey);
var query = new UriQuery();
query.Add(EmailIdKey, document.Id.ToString("N"));
builder.Append(query);
this.regionManager.RequestNavigate(RegionNames.MainContentRegion, new Uri(builder.ToString(), UriKind.Relative), nr => { });
}
void INavigationAware.OnNavigatedTo(NavigationContext navigationContext)
{
// When we're navigated to see if there is an emailId
// associated with the request. If so, retrieve the email document.
var emailId = GetRequestedEmailId(navigationContext);
if (emailId.HasValue)
{
this.Email = this.emailService.GetEmailDocument(emailId.Value);
}
this.navigationJournal = navigationContext.NavigationService.Journal;
}
