public void NavigateToNewMealCreatesEmptyMeal()
{
var loggerMock = new Mock<ILoggerFacade>();
var regionNavigationServiceMock = new Mock<IRegionNavigationService>();
var regionManagerMock = new Mock<IRegionManager>();
var interactionServiceMock = new Mock<IInteractionService>();
var dataRepositoryMock = new Mock<IDataRepository>();
dataRepositoryMock
.Setup( x => x.GetAllMealTypes() )
.Returns( new ReadOnlyCollection<MealType>( new List<MealType>() ) );
dataRepositoryMock
.Setup( x => x.GetAllFoodItems() )
.Returns( new ReadOnlyCollection<FoodItem>( new List<FoodItem>() ) );
var meal = new Meal( Guid.NewGuid(), new MealType( Guid.NewGuid(), "Test", "", DateTime.Now, false ), DateTime.Now, "Test", "This is a test meal" );
dataRepositoryMock.Setup( x => x.GetMeal( meal.ID ) ).Returns( meal );
var viewModel =
new MealViewModel( dataRepositoryMock.Object, regionManagerMock.Object, interactionServiceMock.Object, loggerMock.Object );
var navigationContext =
new NavigationContext( regionNavigationServiceMock.Object, new Uri( "MealView", UriKind.Relative ) );
viewModel.OnNavigatedTo( navigationContext );
Assert.AreNotEqual( meal.ID, viewModel.ID );
Assert.IsNull( viewModel.Name );
Assert.IsNull( viewModel.Description );
Assert.AreEqual( 0, viewModel.FoodItemServings.Count );
Assert.IsFalse( viewModel.IsDirty );
}
public void IsNavigationTargetTrueWhenIDMatches()
{
var loggerMock = new Mock<ILoggerFacade>();
var regionNavigationServiceMock = new Mock<IRegionNavigationService>();
var regionManagerMock = new Mock<IRegionManager>();
var interactionServiceMock = new Mock<IInteractionService>();
var dataRepositoryMock = new Mock<IDataRepository>();
dataRepositoryMock
.Setup( x => x.GetAllMealTypes() )
.Returns( new ReadOnlyCollection<MealType>( new List<MealType>() ) );
dataRepositoryMock
.Setup( x => x.GetAllFoodItems() )
.Returns( new ReadOnlyCollection<FoodItem>( new List<FoodItem>() ) );
var meal = new Meal( Guid.NewGuid(), new MealType( Guid.NewGuid(), "Test", "", DateTime.Now, false ), DateTime.Now, "Test", "This is a test meal" );
dataRepositoryMock.Setup( x => x.GetMeal( meal.ID ) ).Returns( meal );
var viewModel =
new MealViewModel( dataRepositoryMock.Object, regionManagerMock.Object, interactionServiceMock.Object, loggerMock.Object );
var query = new UriQuery();
query.Add( "ID", meal.ID.ToString() );
var navigationContext =
new NavigationContext( regionNavigationServiceMock.Object, new Uri( "MealView" + query.ToString(), UriKind.Relative ) );
viewModel.OnNavigatedTo( navigationContext );
Assert.IsTrue( viewModel.IsNavigationTarget( navigationContext ) );
}
/// <summary>
/// Close test meal. All of the close tests follow this based pattern, so they all call this rather than repeating everything
/// </summary>
private void RunCloseTest( Boolean makeDirty, Boolean makeInvalid, MessageBoxResult messageResponse, Boolean expectRemove, Boolean expectSave )
{
var loggerMock = new Mock<ILoggerFacade>();
Mock<IDataRepository> dataRepositoryMock = new Mock<IDataRepository>();
Mock<IRegionNavigationService> regionNavigationServiceMock = new Mock<IRegionNavigationService>();
Mock<IRegionManager> regionManagerMock = new Mock<IRegionManager>();
Mock<IRegion> regionWithoutViewMock = new Mock<IRegion>();
Mock<IRegion> regionMock = new Mock<IRegion>();
Mock<IInteractionService> interactionServiceMock = new Mock<IInteractionService>();
// Set up the food group list in the data repository mock.
FoodGroup testFoodGroup = new FoodGroup( Guid.NewGuid(), "test", "The only food group in the mock data repository" );
List<FoodGroup> foodGroups = new List<FoodGroup>();
foodGroups.Add( testFoodGroup );
dataRepositoryMock.Setup( x => x.GetAllFoodGroups() ).Returns( new ReadOnlyCollection<FoodGroup>( foodGroups ) );
FoodItem testFoodItem = new FoodItem( Guid.NewGuid(), "Test Food Item", "Test Food Item Description", 42.0M );
testFoodItem.FoodGroupsPerServing.Add( new Serving<FoodGroup>( testFoodGroup, 5.0M ) );
Assert.IsTrue( testFoodItem.IsValid );
List<FoodItem> foodItems = new List<FoodItem>();
foodItems.Add( testFoodItem );
dataRepositoryMock.Setup( x => x.GetAllFoodItems() ).Returns( new ReadOnlyCollection<FoodItem>( foodItems ) );
MealType testMealType = new MealType( Guid.NewGuid(), "Lunch", "A lunch for testing", DateTime.Now, false );
Assert.IsTrue( testMealType.IsValid );
List<MealType> mealTypes = new List<MealType>();
mealTypes.Add( testMealType );
dataRepositoryMock.Setup( x => x.GetAllMealTypes() ).Returns( new ReadOnlyCollection<MealType>( mealTypes ) );
var meal = new Meal( Guid.NewGuid(), testMealType, DateTime.Now, "test meal", "This is a test" );
meal.FoodItemServings.Add( new Serving<FoodItem>( testFoodItem, 1.5M ) );
dataRepositoryMock.Setup( x => x.GetMeal( meal.ID ) ).Returns( meal );
dataRepositoryMock.Setup( x => x.Contains( meal ) ).Returns( true );
// Create the view model under test and associate it with a view
var viewModel = new MealViewModel( dataRepositoryMock.Object, regionManagerMock.Object, interactionServiceMock.Object, loggerMock.Object );
UserControl view = new UserControl();
view.DataContext = viewModel;
// Set up two regions each with their own set of views.
List<UserControl> views = new List<UserControl>();
views.Add( new UserControl() );
views.Add( view );
views.Add( new UserControl() );
views.Add( new UserControl() );
List<UserControl> viewsWithoutView = new List<UserControl>();
viewsWithoutView.Add( new UserControl() );
viewsWithoutView.Add( new UserControl() );
List<IRegion> regions = new List<IRegion>();
regions.Add( regionMock.Object );
regionManagerMock.Setup( x => x.Regions.GetEnumerator() ).Returns( regions.GetEnumerator() );
regionWithoutViewMock.Setup( x => x.Views.GetEnumerator() ).Returns( viewsWithoutView.GetEnumerator() );
regionMock.Setup( x => x.Views.GetEnumerator() ).Returns( views.GetEnumerator() );
// Navigate to the view that "displays" our food foodGroup. This loads the view model
NavigationContext navigationContext =
new NavigationContext( regionNavigationServiceMock.Object, new Uri( "MealView?ID=" + meal.ID.ToString(), UriKind.Relative ) );
viewModel.OnNavigatedTo( navigationContext );
if (makeDirty)
{
if (makeInvalid)
{
interactionServiceMock
.Setup( x => x.ShowMessageBox( Messages.Question_Meal_Close, DisplayStrings.CloseCaption, MessageBoxButton.YesNo, MessageBoxImage.Question ) )
.Returns( messageResponse );
viewModel.Name = "";
Assert.IsTrue( viewModel.IsDirty );
Assert.IsFalse( viewModel.IsValid );
}
else
{
interactionServiceMock
.Setup( x => x.ShowMessageBox( Messages.Question_Meal_Save, DisplayStrings.SaveChangesCaption, MessageBoxButton.YesNoCancel, MessageBoxImage.Question ) )
.Returns( messageResponse );
viewModel.Name = "Something Else";
Assert.IsTrue( viewModel.IsDirty );
Assert.IsTrue( viewModel.IsValid );
}
}
else
{
// This will fail if we have passed in the non-sensical makeDirty == false, makeInvalid == true
Assert.AreEqual( makeDirty, viewModel.IsDirty );
}
// Attempt a close.
viewModel.CloseCommand.Execute( null );
// If we were dirty, then we need to verify that the correct interaction was done, otherwise, that no interaction was done
if (makeDirty)
{
interactionServiceMock.VerifyAll();
}
else
{
interactionServiceMock.Verify(
x => x.ShowMessageBox( It.IsAny<String>(), It.IsAny<String>(), It.IsAny<MessageBoxButton>(), It.IsAny<MessageBoxImage>() ), Times.Never() );
}
if (expectRemove)
{
regionMock.Verify( x => x.Remove( view ), Times.Exactly( 1 ) );
regionMock.Verify( x => x.Remove( It.IsAny<UserControl>() ), Times.Exactly( 1 ) );
}
else
{
regionMock.Verify( x => x.Remove( It.IsAny<UserControl>() ), Times.Never() );
}
if (expectSave)
{
dataRepositoryMock.Verify( x => x.SaveItem( meal ), Times.Exactly( 1 ) );
dataRepositoryMock.Verify( x => x.SaveItem( It.IsAny<Meal>() ), Times.Exactly( 1 ) );
}
else
{
dataRepositoryMock.Verify( x => x.SaveItem( It.IsAny<Meal>() ), Times.Never() );
}
}
private MealViewModel CreateViewModelForMeal(
Meal meal, Mock<IDataRepository> dataRepositoryMock, Mock<IRegionManager> regionManagerMock, Mock<IInteractionService> interactionServiceMock )
{
var loggerMock = new Mock<ILoggerFacade>();
var regionNavigationServiceMock = new Mock<IRegionNavigationService>();
var viewModel =
new MealViewModel( dataRepositoryMock.Object, regionManagerMock.Object, interactionServiceMock.Object, loggerMock.Object );
dataRepositoryMock.Setup( x => x.GetMeal( meal.ID ) ).Returns( meal );
var navigationContext = new NavigationContext(
regionNavigationServiceMock.Object, new Uri( "MealView?ID=" + meal.ID.ToString(), UriKind.Relative ) );
viewModel.OnNavigatedTo( navigationContext );
return viewModel;
}
private UserControl CreateViewInRegion( MealViewModel viewModel, Mock<IRegion> regionMock, Mock<IRegionManager> regionManagerMock )
{
// Set up region manager so we can determine if the view get removed or not.
var view = new UserControl();
view.DataContext = viewModel;
var views = new List<UserControl>();
views.Add( new UserControl() );
views.Add( view );
views.Add( new UserControl() );
views.Add( new UserControl() );
var regions = new List<IRegion>();
regions.Add( regionMock.Object );
regionManagerMock.Setup( x => x.Regions.GetEnumerator() ).Returns( regions.GetEnumerator() );
regionMock.Setup( x => x.Views.GetEnumerator() ).Returns( views.GetEnumerator() );
return view;
}
private MealViewModel CreateEmptyViewModel( Mock<IDataRepository> dataRepositoryMock )
{
var loggerMock = new Mock<ILoggerFacade>();
var regionNavigationServiceMock = new Mock<IRegionNavigationService>();
var regionManagerMock = new Mock<IRegionManager>();
var interactionServiceMock = new Mock<IInteractionService>();
var viewModel =
new MealViewModel( dataRepositoryMock.Object, regionManagerMock.Object, interactionServiceMock.Object, loggerMock.Object );
var navigationContext = new NavigationContext(
regionNavigationServiceMock.Object, new Uri( "MealView", UriKind.Relative ) );
viewModel.OnNavigatedTo( navigationContext );
return viewModel;
}