def test_parse_quantity_is_inverse_of_get_db_str(self):
for U in unit.units:
for u in U:
for amount in TestQuantity.amounts:
with self.subTest(amount=amount, unit=u):
try:
quantity.parse_quantity(
quantity.Quantity(amount, u).get_db_str())
except ValueError as e:
raise self.failureException(
f'test raised {e.__class__.__name__} unexpectedly'
) from e
def nutrition(self):
nutrition_list = []
for ingredient in self.recipe_ingredients:
for nutrient in ingredient.nutrition:
if nutrient['nutrient'] not in map(
operator.itemgetter('nutrient'), nutrition_list):
nutrient['sources'] = []
nutrient['sources'].append({
'name': ingredient.meta.name,
'quantity': nutrient['quantity'],
'id': ingredient.meta.id
})
nutrition_list.append(nutrient)
else:
for nutrition in nutrition_list:
if nutrition['nutrient'] == nutrient['nutrient']:
aggregate_nutrient = self.recipe_ingredients[
0].sum_nutrient(nutrition['quantity'],
nutrient['quantity'])
nutrition['quantity'] = str(aggregate_nutrient)
if 'sources' not in nutrition:
nutrition['sources'] = []
else:
nutrition['sources'].append({
'name':
ingredient.meta.name,
'quantity':
nutrient['quantity'],
'id':
ingredient.meta.id
})
for nutrition in nutrition_list:
for source in nutrition['sources']:
if len(nutrition['sources']) > 1:
ratio = parse_quantity(
source['quantity']) / parse_quantity(
nutrition['quantity'])
source['relative'] = int(float(ratio.amount * 100))
source['quantity'] = parse_quantity(
source['quantity']).decimal
else:
source['quantity'] = parse_quantity(
source['quantity']).decimal
for nutrition in nutrition_list:
nutrition['quantity'] = parse_quantity(
nutrition['quantity']).decimal
return nutrition_list
def get_context(self, name, value, attrs):
context = super().get_context(name, value, attrs)
try:
context['widget']['value'] = parse_quantity(
context['widget']['value'])
except AttributeError:
context['widget']['value'] = Quantity(1, 'serving')
context['widget']['section'] = self.section
return context
def setUp(self) -> None:
self.quantity1 = quantity.parse_quantity('1/3 g')
self.quantity2 = quantity.parse_quantity('2/3 g')
self.quantity3 = quantity.parse_quantity('3 g')
self.quantity4 = quantity.parse_quantity('1 g')
self.quantity5 = quantity.parse_quantity('4 g')
self.quantity6 = quantity.parse_quantity('4/3 g')
def nutrition(self):
nutrition_list = []
# try:
nutrients = self.meta.nutrient
if not nutrients:
try:
self.meta.load_nutrient()
self.meta.save()
nutrients = self.meta.nutrient
except Exception as e:
logger.exception(e)
# except KeyError:
# # nutrients = self.meta.nutrient
# # if 'quantity' in nutrients:
# # nutrients['quantity'] = parse_quantity(
# # nutrients['quantity']).decimal
# # else:
# # return nutrition_list
# # nutrition_list.append(nutrients)
# return nutrition_list
for nutrient in nutrients:
if nutrient['nutrient'] not in map(operator.itemgetter('nutrient'),
nutrition_list):
nutrient['quantity'] = parse_quantity(
nutrient['quantity']).mul_quantity(self.quantity).decimal
nutrition_list.append(nutrient)
else:
nutrient['quantity'] = parse_quantity(
nutrient['quantity']).mul_quantity(self.quantity).decimal
i = nutrition_list.index(
next(
filter(
lambda index: index.get('nutrient') == nutrient[
'nutrient'], nutrition_list)))
nutrition_list[i]['quantity'] = str(
self.sum_nutrient(nutrition_list[i]['quantity'],
nutrient['quantity']))
return nutrition_list
def test_with_div_different_unit(self):
result = self.quantity5 / quantity.parse_quantity('2000 mg')
self.assertEqual(result, quantity.parse_quantity('2 g'))
def test_with_div_same_unit(self):
result = self.quantity6 / self.quantity3
self.assertEqual(result, quantity.parse_quantity('4/9 g'))
def test_with_mul_different_unit(self):
result = self.quantity4 * quantity.parse_quantity('3000 mg')
self.assertEqual(result, self.quantity3)
def test_add_with_different_unit(self):
summation = quantity.parse_quantity('0.002 kg') + self.quantity4
self.assertEqual(summation, quantity.parse_quantity('0.003 kg'))
def sum_nutrient(first_nutrient: str, second_nutrient: str) -> Quantity:
result = parse_quantity(first_nutrient) + \
parse_quantity(second_nutrient)
return result.decimal