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from django.db import connection
from django.db.models import Max
from django.test import TestCase
from .models import Cash, CashModel
class FromDBValueTest(TestCase):
@classmethod
def setUpTestData(cls):
CashModel.objects.create(cash="12.50")
def test_simple_load(self):
instance = CashModel.objects.get()
self.assertIsInstance(instance.cash, Cash)
def test_values_list(self):
values_list = CashModel.objects.values_list("cash", flat=True)
self.assertIsInstance(values_list[0], Cash)
def test_values(self):
values = CashModel.objects.values("cash")
self.assertIsInstance(values[0]["cash"], Cash)
def test_aggregation(self):
maximum = CashModel.objects.aggregate(m=Max("cash"))["m"]
self.assertIsInstance(maximum, Cash)
def test_defer(self):
instance = CashModel.objects.defer("cash").get()
self.assertIsInstance(instance.cash, Cash)
def test_connection(self):
instance = CashModel.objects.get()
self.assertEqual(instance.cash.vendor, connection.vendor)
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