public async Task SetAllergenToRecipeAsync_WithCorrectData_ShouldSuccessfullySet()
{
var errorMessagePrefix = "AllergenService SetAllergenToRecipeAsync() method does not work properly.";
// Arrange
MapperInitializer.InitializeMapper();
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
await this.SeedDataAsync(context);
var allergenRepository = new EfRepository <Allergen>(context);
var allergenService = new AllergenService(allergenRepository);
var recipe = new Recipe();
// Act
await allergenService.SetAllergenToRecipeAsync("Milk", recipe);
var actualResult = recipe.Allergens.First().Allergen;
var expectedResult = await allergenRepository
.All()
.SingleOrDefaultAsync(x => x.Name == "Milk");
// Assert
Assert.True(actualResult.Id == expectedResult.Id, errorMessagePrefix + " " + "Id is not returned properly.");
Assert.True(actualResult.Name == expectedResult.Name, errorMessagePrefix + " " + "Name is not returned properly.");
}
public async Task SetAllergenToRecipeAsync_WithNonExistentAllergen_ShouldThrowArgumentNullException()
{
// Arrange
MapperInitializer.InitializeMapper();
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
var allergenRepository = new EfRepository <Allergen>(context);
var allergenService = new AllergenService(allergenRepository);
var recipe = new Recipe();
// Act
// Assert
await Assert.ThrowsAsync <ArgumentNullException>(async() =>
{
await allergenService.SetAllergenToRecipeAsync("NonExistent", recipe);
});
}