public void OnAuthenticationEvent_SettingsAreUpdated()
{
// Arrange.
var eventAggregator = Mock.Create<IEventAggregator>(Behavior.Loose);
var communicationService = Mock.Create<IConcurrencyCommunicationService>(Behavior.Loose);
var utils = Mock.Create<IUtils>(Behavior.Loose);
Mock.Arrange(() => utils.CurrentUserAuthenticated).Returns(true);
var emailSettingsRetriever = Mock.Create<EmailSettingsRetriever>(Behavior.Loose);
Mock.Arrange(() => EmailSettingsRetriever.GetEmailSettingsAsync()).Returns(TaskHelper.FromResult(emailSettingsRetriever));
var settings = new EmailSettings(eventAggregator, communicationService, utils);
settings.OnImportsSatisfied();
Mock.Arrange(() => emailSettingsRetriever.DetailsFromAddress).Returns("*****@*****.**");
// Act.
settings.HandleEvent(new AuthenticationEvent());
// Assert.
Assert.IsTrue(settings.CanSendFromDetails);
}