def test_food_with_no_nutrients(self):
food = models.Food.objects.create(name="Chicken")
models.FoodWeight.objects.create(food=food,
amount=1,
desc="Pinch",
value=1)
food = ingredient.Ingredient(food.name)
assert food.energy is None
def test_sample_water(self):
nutrients = [
"ENERC_KCAL",
"PROCNT",
"FAT",
"FASAT",
"FAPU",
"FAMS",
"CHOCDF",
"SUGAR",
"CHOLE",
"NA",
"K",
"FIBTG",
]
water = models.Food.objects.create(name="Water")
models.FoodWeight.objects.create(food=water,
amount=1,
desc="ml",
value=1)
for n in nutrients:
models.FoodNutrition.objects.create(food=water,
desc=n,
value=0.0,
units="mg",
tagname=n)
ing = ingredient.Ingredient(water.name)
assert ing.matched_food.id == water.id
assert ing.energy == 0.0
assert ing.protein == 0.0
assert ing.fat == 0.0
assert ing.fat_sat == 0.0
assert ing.fat_poly == 0.0
assert ing.fat_mono == 0.0
assert ing.carb == 0.0
assert ing.sugar == 0.0
assert ing.chol == 0.0
assert ing.fiber == 0.0
assert ing.potas == 0.0
assert ing.sodium == 0.0
def test_raise_when_no_weight(self):
models.Food.objects.create(name="Chicken breast")
with pytest.raises(ingredient.IngredientError):
ingredient.Ingredient(
"Chicken breast"
) # Unit wasn't specified and Chicken doesn't have any weight objects so it should raise IngredientError
def test_assign_weight(self):
models.Food.objects.create(name="Chicken breast")
ing = ingredient.Ingredient("1 g of chicken breast")
assert ing.weight == 1
def test_parsing_non_existent_ingredient(self):
with pytest.raises(ingredient.IngredientError):
assert ingredient.Ingredient("xyz")