public void GivenIngredientId_WhenNotExist_ShouldThrowArgumentNullException()
{
_systemUnderTests = new GetIngredientQueryHandler(Mock.Of <IIngredientRepository>());
Action action = () => _systemUnderTests.Handle(_query);
action.Should().Throw <ArgumentNullException>();
}
public void GivenIngredientId_WhenExist_ShouldReturnIngredient()
{
_ingredientRepositoryMock.Setup(x => x.GetById(It.IsAny <Guid>()))
.Returns(_ingredient);
var result = _systemUnderTests.Handle(_query);
result.Should().NotBeNull();
}