public void FoodItemViewModelIsValid()
{
var loggerMock = new Mock<ILoggerFacade>();
var regionNavigationServiceMock = new Mock<IRegionNavigationService>();
var regionManagerMock = new Mock<IRegionManager>();
var interactionServiceMock = new Mock<IInteractionService>();
var configurationMock = new Mock<IConfiguration>();
configurationMock.Setup( x => x.DataSource ).Returns( DataSourceType.XMLFile );
configurationMock.Setup( x => x.FileName ).Returns( FullTestData.DataFileName );
FullTestData.Reset();
var dataRepository = new DataRepository( configurationMock.Object );
FoodItemViewModel testFoodItemViewModel =
new FoodItemViewModel( dataRepository, regionManagerMock.Object, interactionServiceMock.Object, loggerMock.Object );
NavigationContext navigationContext = new NavigationContext( regionNavigationServiceMock.Object, new Uri( "FoodItemView", UriKind.Relative ) );
testFoodItemViewModel.OnNavigatedTo( navigationContext );
Assert.IsFalse( testFoodItemViewModel.IsValid );
Assert.AreEqual( Messages.Error_No_Name, testFoodItemViewModel["Name"] );
Assert.AreEqual( Messages.Error_No_FoodGroups, testFoodItemViewModel["FoodGroupsPerServing"] );
Assert.IsTrue( String.IsNullOrEmpty( testFoodItemViewModel["Description"] ) );
testFoodItemViewModel.Name = "Fruit Salad";
testFoodItemViewModel.FoodGroupsPerServing.Add(
new ServingViewModel<FoodGroup>(
dataRepository.FindFoodGroup( fg => fg.Name == "Fruit" ), 1 ) );
Assert.IsFalse( testFoodItemViewModel.IsValid );
Assert.AreEqual( Messages.Error_FoodItem_Exists, testFoodItemViewModel["Name"] );
Assert.IsTrue( String.IsNullOrEmpty( testFoodItemViewModel["FoodGroupsPerServing"] ) );
Assert.IsTrue( String.IsNullOrEmpty( testFoodItemViewModel["Description"] ) );
testFoodItemViewModel.Name = "Some Unique Name";
Assert.IsTrue( testFoodItemViewModel.IsValid );
Assert.IsTrue( String.IsNullOrEmpty( testFoodItemViewModel.Error ) );
Assert.IsTrue( String.IsNullOrEmpty( testFoodItemViewModel["Name"] ) );
Assert.IsTrue( String.IsNullOrEmpty( testFoodItemViewModel["FoodGroupsPerServing"] ) );
Assert.IsTrue( String.IsNullOrEmpty( testFoodItemViewModel["Description"] ) );
}
public void FoodItemViewModelIsDirty()
{
var loggerMock = new Mock<ILoggerFacade>();
var regionNavigationServiceMock = new Mock<IRegionNavigationService>();
var regionManagerMock = new Mock<IRegionManager>();
var interactionServiceMock = new Mock<IInteractionService>();
var configurationMock = new Mock<IConfiguration>();
configurationMock.Setup( x => x.DataSource ).Returns( DataSourceType.XMLFile );
configurationMock.Setup( x => x.FileName ).Returns( FullTestData.DataFileName );
FullTestData.Reset();
var dataRepository = new DataRepository( configurationMock.Object );
// Existing Food Item
// Starts clean
// Change Name - dirty
// Undo - clean
// Change Description - dirty
// Undo - clean
// Change Calories - dirty
// Undo - clean
// Change Food Group Serving - dirty
// Undo - clean
// Add food group - dirty
// undo - clean
//
FoodItem cheeseBurger = dataRepository.GetFoodItem( FullTestData.CheeseBurgerID );
Assert.IsNotNull( cheeseBurger );
String originalName = cheeseBurger.Name;
String originalDescription = cheeseBurger.Description;
FoodItemViewModel cheeseBurgerViewModel =
new FoodItemViewModel( dataRepository, regionManagerMock.Object, interactionServiceMock.Object, loggerMock.Object );
NavigationContext navigationContext = new NavigationContext(
regionNavigationServiceMock.Object, new Uri( "FoodItemView?ID=" + cheeseBurger.ID.ToString(), UriKind.Relative ) );
cheeseBurgerViewModel.OnNavigatedTo( navigationContext );
Assert.IsFalse( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.Name += "Modified";
Assert.IsTrue( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.Name = originalName;
Assert.IsFalse( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.Description += "Different";
Assert.IsTrue( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.Description = originalDescription;
Assert.IsFalse( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.Name = null;
Assert.IsTrue( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.Name = originalName;
Assert.IsFalse( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.CaloriesPerServing += 90;
Assert.IsTrue( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.CaloriesPerServing -= 90;
Assert.IsFalse( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.FoodGroupsPerServing[0].Quantity += 1;
Assert.IsTrue( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.FoodGroupsPerServing[0].Quantity -= 1;
Assert.IsFalse( cheeseBurgerViewModel.IsDirty );
ServingViewModel<FoodGroup> serving = cheeseBurgerViewModel.FoodGroupsPerServing[0];
cheeseBurgerViewModel.FoodGroupsPerServing.Remove( serving );
Assert.IsTrue( cheeseBurgerViewModel.IsDirty );
// Create an exact duplicate of the servings.
ServingViewModel<FoodGroup> copyOfServing = new ServingViewModel<FoodGroup>( serving.Entity, serving.Quantity );
cheeseBurgerViewModel.FoodGroupsPerServing.Add( copyOfServing );
Assert.IsFalse( cheeseBurgerViewModel.IsDirty );
serving = new ServingViewModel<FoodGroup>(
dataRepository.FindFoodGroup( fg => fg.Name == "Water" ), 1 );
cheeseBurgerViewModel.FoodGroupsPerServing.Add( serving );
Assert.IsTrue( cheeseBurgerViewModel.IsDirty );
cheeseBurgerViewModel.FoodGroupsPerServing.Remove( serving );
Assert.IsFalse( cheeseBurgerViewModel.IsDirty );
}