public async Task BrandsPropertyIsNotNullAfterViewModelInitializationTest()
{
var catalogService = new CatalogMockService();
var catalogViewModel = new CatalogViewModel(catalogService);
await catalogViewModel.InitializeAsync(null);
Assert.NotNull(catalogViewModel.Brands);
}
public async Task ProductsPropertyIsNotNullAfterViewModelInitializationTest()
{
var catalogService = new CatalogMockService(_dependencyService);
var catalogViewModel = new CatalogViewModel(catalogService);
await catalogViewModel.InitializeAsync(null);
Assert.NotNull(catalogViewModel.Products);
}
public async Task TypesPropertyIsNotNullAfterViewModelInitializationTest()
{
Xamarin.Forms.DependencyService.RegisterSingleton <ISettingsService>(new MockSettingsService());
Xamarin.Forms.DependencyService.RegisterSingleton <ICatalogService>(new CatalogMockService());
var catalogViewModel = new CatalogViewModel();
await catalogViewModel.InitializeAsync(null);
Assert.NotNull(catalogViewModel.Types);
}
public async Task ClearFilterCommandResetsPropertiesTest()
{
var catalogService = new CatalogMockService();
var catalogViewModel = new CatalogViewModel(catalogService);
await catalogViewModel.InitializeAsync(null);
catalogViewModel.ClearFilterCommand.Execute(null);
Assert.Null(catalogViewModel.Brand);
Assert.Null(catalogViewModel.Type);
Assert.NotNull(catalogViewModel.Products);
}
public async Task ClearFilterCommandResetsPropertiesTest()
{
Xamarin.Forms.DependencyService.RegisterSingleton <ISettingsService>(new MockSettingsService());
Xamarin.Forms.DependencyService.RegisterSingleton <ICatalogService>(new CatalogMockService());
var catalogViewModel = new CatalogViewModel();
await catalogViewModel.InitializeAsync(null);
catalogViewModel.ClearFilterCommand.Execute(null);
Assert.Null(catalogViewModel.Brand);
Assert.Null(catalogViewModel.Type);
Assert.NotNull(catalogViewModel.Products);
}
public async Task SettingTypesPropertyShouldRaisePropertyChanged()
{
bool invoked = false;
var catalogService = new CatalogMockService();
var catalogViewModel = new CatalogViewModel(catalogService);
catalogViewModel.PropertyChanged += (sender, e) =>
{
if (e.PropertyName.Equals("Types"))
{
invoked = true;
}
};
await catalogViewModel.InitializeAsync(null);
Assert.True(invoked);
}
public async Task FilterCommandSendsFilterMessageTest()
{
bool messageReceived = false;
var catalogService = new CatalogMockService();
var catalogViewModel = new CatalogViewModel(catalogService);
await catalogViewModel.InitializeAsync(null);
catalogViewModel.Brand = catalogViewModel.Brands.FirstOrDefault();
catalogViewModel.Type = catalogViewModel.Types.FirstOrDefault();
Xamarin.Forms.MessagingCenter.Subscribe <CatalogViewModel>(this, MessageKeys.Filter, (sender) =>
{
messageReceived = true;
});
catalogViewModel.FilterCommand.Execute(null);
Assert.True(messageReceived);
}
public async Task SettingTypesPropertyShouldRaisePropertyChanged()
{
bool invoked = false;
Xamarin.Forms.DependencyService.RegisterSingleton <ISettingsService>(new MockSettingsService());
Xamarin.Forms.DependencyService.RegisterSingleton <ICatalogService>(new CatalogMockService());
var catalogViewModel = new CatalogViewModel();
catalogViewModel.PropertyChanged += (sender, e) =>
{
if (e.PropertyName.Equals("Types"))
{
invoked = true;
}
};
await catalogViewModel.InitializeAsync(null);
Assert.True(invoked);
}
