public async Task GetIdByRecipeIdAsync_WithNonExistentRecipeId_ShouldThrowArgumentNullException()
{
// Arrange
MapperInitializer.InitializeMapper();
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
var shoppingListRepository = new EfDeletableEntityRepository <ShoppingList>(context);
var shoppingListService = new ShoppingListService(shoppingListRepository);
var nonExistentId = Guid.NewGuid().ToString();
// Act
// Assert
await Assert.ThrowsAsync <ArgumentNullException>(async() =>
{
await shoppingListService.GetIdByRecipeIdAsync(nonExistentId);
});
}
public async Task GetIdByRecipeIdAsync_WithExistentRecipeId_ShouldReturnCorrectResult()
{
var errorMessagePrefix = "ShoppingListService GetIdByRecipeIdAsync() method does not work properly.";
// Arrange
MapperInitializer.InitializeMapper();
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
await this.SeedDataAsync(context);
var shoppingListRepository = new EfDeletableEntityRepository <ShoppingList>(context);
var shoppingListService = new ShoppingListService(shoppingListRepository);
var recipeId = context.Recipes.First().Id;
// Act
var actualResult = await shoppingListService.GetIdByRecipeIdAsync(recipeId);
var expectedResult = shoppingListRepository.All().First().Id;
// Assert
Assert.True(expectedResult == actualResult, errorMessagePrefix + " " + "Id is not returned properly.");
}