public void LoadAllCoffees()
        {
            //Arrange
            ObservableCollection <Coffee> coffees = null;
            var expectedCoffees = coffeeDataService.GetAllCoffees();

            //Act
            var viewModel = new CoffeeOverviewViewModel(this.coffeeDataService, this.dialogService);

            coffees = viewModel.Coffees;

            //Assert
            CollectionAssert.Equals(expectedCoffees, coffees);
        }
        public void LoadAllCoffees()
        {
            //Arrange
            ObservableCollection <Coffee> coffees = null;
            var expectedCoffees = coffeeDataService.GetAllCoffees();

            //act
            var viewModel = GetViewModel();

            coffees = viewModel.Coffees;

            //assert
            CollectionAssert.AreEqual(expectedCoffees, coffees);
        }
 private void LoadData()
 {
     Coffees = _coffeeDataService.GetAllCoffees().ToObservableCollection();
 }