public MainPage()
{
InitializeComponent();
DataContext = new ViewModels.MainPageViewModel
{
Definition = "This is the initial state of the definition!",
Word = "Type a word for happy times!"
};
}
public MainPage()
{
InitializeComponent();
DataContext = new ViewModels.MainPageViewModel
{
Definition = "This is the initial state of the definition!",
Word = "Type a word for happy times!"
};
}
public void ShouldTellYouWhenAWordCannotBeFound()
{
//Arrange
var mainPageViewModel = new MainPageViewModel
{
Word = "I do not exist",
Definition = string.Empty,
Service = new LocalLookupService()
};
//Act
mainPageViewModel.Lookup.Execute(null);
//Assert
Assert.AreEqual(NotFoundText, mainPageViewModel.Definition);
}
public void ShouldRaiseAPropertyChangedEventWhenTheDefinitionIsChanged()
{
//Arrange
var mainPageViewModel = new MainPageViewModel
{
Word = "word1",
Definition = string.Empty
};
var eventRaised = false;
mainPageViewModel.PropertyChanged += (sender, args) => eventRaised = true;
//Act
mainPageViewModel.Definition = "WOW, this is changing";
//Assert
Assert.That(eventRaised, "we expected the viewmodel to notify us that the data had changed.");
}
public void ShouldLookupWord()
{
//Arrange
var mainPageViewModel = new MainPageViewModel
{
Word = "word1",
Definition = string.Empty
};
mainPageViewModel.Service = new LocalLookupService();
//Act
mainPageViewModel.Lookup.Execute(null);
var resultOfFirstLookup = mainPageViewModel.Definition;
mainPageViewModel.Word = "word2";
mainPageViewModel.Lookup.Execute(null);
var resultOfSecondLookup = mainPageViewModel.Definition;
//Assert
Assert.IsNotNullOrEmpty(resultOfFirstLookup);
Assert.AreNotEqual(resultOfFirstLookup, resultOfSecondLookup);
}