public void ShouldRefreshCommandRefreshMainBrandListFirstTest()
{
//arrange
viewModel = new CollectionViewSampleViewModel(DataManager);
int originalCollectionCount = 0;
//act
Task.Run(async() =>
{
await viewModel.LoadData();
}).GetAwaiter().GetResult();
viewModel.PopularBrands.Remove(viewModel.PopularBrands.FirstOrDefault());
viewModel.PopularBrands.Remove(viewModel.PopularBrands.FirstOrDefault());
originalCollectionCount = viewModel.PopularBrands.Count();
Task.Run(async() =>
{
await viewModel.ExecuteOnRefreshCommandAsync();
}).GetAwaiter().GetResult();
//assert
viewModel.PopularBrands.Count.ShouldBeGreaterThan(originalCollectionCount);
viewModel.PopularBrandsFromServer.Count.ShouldBeGreaterThan(originalCollectionCount);
}
public void ShouldRefreshCommandRefreshMainBrandListSecondTest()
{
//arrange
viewModel = new CollectionViewSampleViewModel(DataManager);
ObservableCollection <PopularBrandsViewModel> originalData = new ObservableCollection <PopularBrandsViewModel>();
ObservableCollection <PopularBrandsViewModel> refreshedData = new ObservableCollection <PopularBrandsViewModel>();
IEnumerable <PopularBrandsViewModel> differences;
//act
Task.Run(async() =>
{
await viewModel.LoadData();
}).GetAwaiter().GetResult();
if (viewModel.PopularBrands.Count > 1000)
{
originalData = new ObservableCollection <PopularBrandsViewModel>(viewModel.PopularBrands);
Task.Run(async() =>
{
await viewModel.ExecuteOnRefreshCommandAsync();
}).GetAwaiter().GetResult();
refreshedData = new ObservableCollection <PopularBrandsViewModel>(viewModel.PopularBrands);
differences = originalData.Except(refreshedData);
}
else
{
List <PopularBrandsViewModel> list = new List <PopularBrandsViewModel>();
list.Add(new PopularBrandsViewModel());
IEnumerable <PopularBrandsViewModel> en = list;
differences = en;
}
//assert
Assert.AreEqual(originalData.Count, refreshedData.Count);
differences.Count().ShouldBeGreaterThan(0);
}