693 lines
27 KiB
Python
693 lines
27 KiB
Python
from __future__ import unicode_literals
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import datetime
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from django.core.exceptions import FieldError
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from django.db import connection
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from django.db.models import F
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from django.db import transaction
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from django.test import TestCase, skipIfDBFeature, skipUnlessDBFeature
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from django.test.utils import Approximate
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from django.utils import six
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from .models import Company, Employee, Number, Experiment
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class ExpressionsTests(TestCase):
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def test_filter(self):
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Company.objects.create(
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name="Example Inc.", num_employees=2300, num_chairs=5,
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ceo=Employee.objects.create(firstname="Joe", lastname="Smith")
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)
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Company.objects.create(
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name="Foobar Ltd.", num_employees=3, num_chairs=4,
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ceo=Employee.objects.create(firstname="Frank", lastname="Meyer")
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)
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Company.objects.create(
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name="Test GmbH", num_employees=32, num_chairs=1,
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ceo=Employee.objects.create(firstname="Max", lastname="Mustermann")
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)
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company_query = Company.objects.values(
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"name", "num_employees", "num_chairs"
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).order_by(
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"name", "num_employees", "num_chairs"
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)
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# We can filter for companies where the number of employees is greater
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# than the number of chairs.
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self.assertQuerysetEqual(
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company_query.filter(num_employees__gt=F("num_chairs")), [
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{
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"num_chairs": 5,
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"name": "Example Inc.",
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"num_employees": 2300,
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},
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{
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"num_chairs": 1,
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"name": "Test GmbH",
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"num_employees": 32
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},
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],
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lambda o: o
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)
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# We can set one field to have the value of another field
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# Make sure we have enough chairs
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company_query.update(num_chairs=F("num_employees"))
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self.assertQuerysetEqual(
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company_query, [
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{
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"num_chairs": 2300,
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"name": "Example Inc.",
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"num_employees": 2300
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},
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{
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"num_chairs": 3,
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"name": "Foobar Ltd.",
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"num_employees": 3
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},
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{
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"num_chairs": 32,
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"name": "Test GmbH",
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"num_employees": 32
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}
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],
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lambda o: o
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)
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# We can perform arithmetic operations in expressions
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# Make sure we have 2 spare chairs
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company_query.update(num_chairs=F("num_employees") + 2)
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self.assertQuerysetEqual(
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company_query, [
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{
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'num_chairs': 2302,
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'name': 'Example Inc.',
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'num_employees': 2300
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},
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{
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'num_chairs': 5,
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'name': 'Foobar Ltd.',
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'num_employees': 3
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},
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{
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'num_chairs': 34,
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'name': 'Test GmbH',
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'num_employees': 32
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}
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],
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lambda o: o,
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)
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# Law of order of operations is followed
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company_query.update(
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num_chairs=F('num_employees') + 2 * F('num_employees')
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)
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self.assertQuerysetEqual(
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company_query, [
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{
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'num_chairs': 6900,
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'name': 'Example Inc.',
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'num_employees': 2300
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},
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{
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'num_chairs': 9,
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'name': 'Foobar Ltd.',
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'num_employees': 3
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},
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{
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'num_chairs': 96,
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'name': 'Test GmbH',
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'num_employees': 32
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}
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],
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lambda o: o,
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)
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# Law of order of operations can be overridden by parentheses
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company_query.update(
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num_chairs=((F('num_employees') + 2) * F('num_employees'))
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)
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self.assertQuerysetEqual(
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company_query, [
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{
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'num_chairs': 5294600,
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'name': 'Example Inc.',
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'num_employees': 2300
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},
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{
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'num_chairs': 15,
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'name': 'Foobar Ltd.',
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'num_employees': 3
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},
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{
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'num_chairs': 1088,
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'name': 'Test GmbH',
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'num_employees': 32
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}
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],
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lambda o: o,
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)
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# The relation of a foreign key can become copied over to an other
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# foreign key.
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self.assertEqual(
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Company.objects.update(point_of_contact=F('ceo')),
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3
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)
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self.assertQuerysetEqual(
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Company.objects.all(), [
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"Joe Smith",
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"Frank Meyer",
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"Max Mustermann",
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],
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lambda c: six.text_type(c.point_of_contact),
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ordered=False
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)
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c = Company.objects.all()[0]
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c.point_of_contact = Employee.objects.create(firstname="Guido", lastname="van Rossum")
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c.save()
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# F Expressions can also span joins
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self.assertQuerysetEqual(
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Company.objects.filter(ceo__firstname=F("point_of_contact__firstname")), [
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"Foobar Ltd.",
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"Test GmbH",
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],
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lambda c: c.name,
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ordered=False
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)
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Company.objects.exclude(
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ceo__firstname=F("point_of_contact__firstname")
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).update(name="foo")
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self.assertEqual(
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Company.objects.exclude(
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ceo__firstname=F('point_of_contact__firstname')
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).get().name,
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"foo",
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)
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with transaction.atomic():
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with self.assertRaises(FieldError):
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Company.objects.exclude(
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ceo__firstname=F('point_of_contact__firstname')
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).update(name=F('point_of_contact__lastname'))
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# F expressions can be used to update attributes on single objects
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test_gmbh = Company.objects.get(name="Test GmbH")
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self.assertEqual(test_gmbh.num_employees, 32)
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test_gmbh.num_employees = F("num_employees") + 4
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test_gmbh.save()
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test_gmbh = Company.objects.get(pk=test_gmbh.pk)
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self.assertEqual(test_gmbh.num_employees, 36)
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# F expressions cannot be used to update attributes which are foreign
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# keys, or attributes which involve joins.
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test_gmbh.point_of_contact = None
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test_gmbh.save()
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self.assertTrue(test_gmbh.point_of_contact is None)
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def test():
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test_gmbh.point_of_contact = F("ceo")
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self.assertRaises(ValueError, test)
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test_gmbh.point_of_contact = test_gmbh.ceo
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test_gmbh.save()
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test_gmbh.name = F("ceo__last_name")
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self.assertRaises(FieldError, test_gmbh.save)
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# F expressions cannot be used to update attributes on objects which do
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# not yet exist in the database
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acme = Company(
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name="The Acme Widget Co.", num_employees=12, num_chairs=5,
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ceo=test_gmbh.ceo
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)
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acme.num_employees = F("num_employees") + 16
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self.assertRaises(TypeError, acme.save)
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def test_ticket_11722_iexact_lookup(self):
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Employee.objects.create(firstname="John", lastname="Doe")
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Employee.objects.create(firstname="Test", lastname="test")
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queryset = Employee.objects.filter(firstname__iexact=F('lastname'))
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self.assertQuerysetEqual(queryset, ["<Employee: Test test>"])
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@skipIfDBFeature('has_case_insensitive_like')
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def test_ticket_16731_startswith_lookup(self):
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Employee.objects.create(firstname="John", lastname="Doe")
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e2 = Employee.objects.create(firstname="Jack", lastname="Jackson")
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e3 = Employee.objects.create(firstname="Jack", lastname="jackson")
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self.assertQuerysetEqual(
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Employee.objects.filter(lastname__startswith=F('firstname')),
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[e2], lambda x: x)
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self.assertQuerysetEqual(
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Employee.objects.filter(lastname__istartswith=F('firstname')).order_by('pk'),
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[e2, e3], lambda x: x)
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def test_ticket_18375_join_reuse(self):
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# Test that reverse multijoin F() references and the lookup target
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# the same join. Pre #18375 the F() join was generated first, and the
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# lookup couldn't reuse that join.
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qs = Employee.objects.filter(
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company_ceo_set__num_chairs=F('company_ceo_set__num_employees'))
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self.assertEqual(str(qs.query).count('JOIN'), 1)
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def test_ticket_18375_kwarg_ordering(self):
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# The next query was dict-randomization dependent - if the "gte=1"
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# was seen first, then the F() will reuse the join generated by the
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# gte lookup, if F() was seen first, then it generated a join the
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# other lookups could not reuse.
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qs = Employee.objects.filter(
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company_ceo_set__num_chairs=F('company_ceo_set__num_employees'),
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company_ceo_set__num_chairs__gte=1)
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self.assertEqual(str(qs.query).count('JOIN'), 1)
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def test_ticket_18375_kwarg_ordering_2(self):
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# Another similar case for F() than above. Now we have the same join
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# in two filter kwargs, one in the lhs lookup, one in F. Here pre
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# #18375 the amount of joins generated was random if dict
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# randomization was enabled, that is the generated query dependend
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# on which clause was seen first.
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qs = Employee.objects.filter(
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company_ceo_set__num_employees=F('pk'),
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pk=F('company_ceo_set__num_employees')
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)
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self.assertEqual(str(qs.query).count('JOIN'), 1)
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def test_ticket_18375_chained_filters(self):
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# Test that F() expressions do not reuse joins from previous filter.
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qs = Employee.objects.filter(
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company_ceo_set__num_employees=F('pk')
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).filter(
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company_ceo_set__num_employees=F('company_ceo_set__num_employees')
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)
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self.assertEqual(str(qs.query).count('JOIN'), 2)
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class ExpressionsNumericTests(TestCase):
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def setUp(self):
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Number(integer=-1).save()
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Number(integer=42).save()
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Number(integer=1337).save()
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self.assertEqual(Number.objects.update(float=F('integer')), 3)
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def test_fill_with_value_from_same_object(self):
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"""
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We can fill a value in all objects with an other value of the
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same object.
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"""
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self.assertQuerysetEqual(
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Number.objects.all(),
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[
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'<Number: -1, -1.000>',
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'<Number: 42, 42.000>',
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'<Number: 1337, 1337.000>'
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],
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ordered=False
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)
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def test_increment_value(self):
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"""
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We can increment a value of all objects in a query set.
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"""
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self.assertEqual(
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Number.objects.filter(integer__gt=0)
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.update(integer=F('integer') + 1),
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2)
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self.assertQuerysetEqual(
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Number.objects.all(),
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[
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'<Number: -1, -1.000>',
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'<Number: 43, 42.000>',
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'<Number: 1338, 1337.000>'
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],
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ordered=False
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)
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def test_filter_not_equals_other_field(self):
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"""
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We can filter for objects, where a value is not equals the value
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of an other field.
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"""
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self.assertEqual(
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Number.objects.filter(integer__gt=0)
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.update(integer=F('integer') + 1),
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2)
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self.assertQuerysetEqual(
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Number.objects.exclude(float=F('integer')),
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[
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'<Number: 43, 42.000>',
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'<Number: 1338, 1337.000>'
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],
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ordered=False
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)
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def test_complex_expressions(self):
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"""
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Complex expressions of different connection types are possible.
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"""
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n = Number.objects.create(integer=10, float=123.45)
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self.assertEqual(Number.objects.filter(pk=n.pk)
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.update(float=F('integer') + F('float') * 2), 1)
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self.assertEqual(Number.objects.get(pk=n.pk).integer, 10)
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self.assertEqual(Number.objects.get(pk=n.pk).float, Approximate(256.900, places=3))
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class ExpressionOperatorTests(TestCase):
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def setUp(self):
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self.n = Number.objects.create(integer=42, float=15.5)
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def test_lefthand_addition(self):
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# LH Addition of floats and integers
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Number.objects.filter(pk=self.n.pk).update(
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integer=F('integer') + 15,
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float=F('float') + 42.7
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)
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 57)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(58.200, places=3))
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def test_lefthand_subtraction(self):
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# LH Subtraction of floats and integers
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Number.objects.filter(pk=self.n.pk).update(integer=F('integer') - 15,
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float=F('float') - 42.7)
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 27)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(-27.200, places=3))
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def test_lefthand_multiplication(self):
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# Multiplication of floats and integers
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Number.objects.filter(pk=self.n.pk).update(integer=F('integer') * 15,
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float=F('float') * 42.7)
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 630)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(661.850, places=3))
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def test_lefthand_division(self):
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# LH Division of floats and integers
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Number.objects.filter(pk=self.n.pk).update(integer=F('integer') / 2,
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float=F('float') / 42.7)
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 21)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(0.363, places=3))
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def test_lefthand_modulo(self):
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# LH Modulo arithmetic on integers
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Number.objects.filter(pk=self.n.pk).update(integer=F('integer') % 20)
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 2)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(15.500, places=3))
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def test_lefthand_bitwise_and(self):
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# LH Bitwise ands on integers
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Number.objects.filter(pk=self.n.pk).update(integer=F('integer').bitand(56))
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 40)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(15.500, places=3))
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@skipUnlessDBFeature('supports_bitwise_or')
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def test_lefthand_bitwise_or(self):
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# LH Bitwise or on integers
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Number.objects.filter(pk=self.n.pk).update(integer=F('integer').bitor(48))
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 58)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(15.500, places=3))
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def test_lefthand_power(self):
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# LH Powert arithmetic operation on floats and integers
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Number.objects.filter(pk=self.n.pk).update(integer=F('integer') ** 2,
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float=F('float') ** 1.5)
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 1764)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(61.02, places=2))
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def test_right_hand_addition(self):
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# Right hand operators
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Number.objects.filter(pk=self.n.pk).update(integer=15 + F('integer'),
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float=42.7 + F('float'))
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# RH Addition of floats and integers
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 57)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(58.200, places=3))
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def test_right_hand_subtraction(self):
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Number.objects.filter(pk=self.n.pk).update(integer=15 - F('integer'),
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float=42.7 - F('float'))
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# RH Subtraction of floats and integers
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, -27)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(27.200, places=3))
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def test_right_hand_multiplication(self):
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# RH Multiplication of floats and integers
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Number.objects.filter(pk=self.n.pk).update(integer=15 * F('integer'),
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float=42.7 * F('float'))
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 630)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(661.850, places=3))
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def test_right_hand_division(self):
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# RH Division of floats and integers
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Number.objects.filter(pk=self.n.pk).update(integer=640 / F('integer'),
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float=42.7 / F('float'))
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 15)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(2.755, places=3))
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def test_right_hand_modulo(self):
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# RH Modulo arithmetic on integers
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Number.objects.filter(pk=self.n.pk).update(integer=69 % F('integer'))
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 27)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(15.500, places=3))
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def test_righthand_power(self):
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# RH Powert arithmetic operation on floats and integers
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Number.objects.filter(pk=self.n.pk).update(integer=2 ** F('integer'),
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float=1.5 ** F('float'))
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self.assertEqual(Number.objects.get(pk=self.n.pk).integer, 4398046511104)
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self.assertEqual(Number.objects.get(pk=self.n.pk).float, Approximate(536.308, places=3))
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class FTimeDeltaTests(TestCase):
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def setUp(self):
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sday = datetime.date(2010, 6, 25)
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stime = datetime.datetime(2010, 6, 25, 12, 15, 30, 747000)
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midnight = datetime.time(0)
|
|
|
|
delta0 = datetime.timedelta(0)
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|
delta1 = datetime.timedelta(microseconds=253000)
|
|
delta2 = datetime.timedelta(seconds=44)
|
|
delta3 = datetime.timedelta(hours=21, minutes=8)
|
|
delta4 = datetime.timedelta(days=10)
|
|
|
|
# Test data is set so that deltas and delays will be
|
|
# strictly increasing.
|
|
self.deltas = []
|
|
self.delays = []
|
|
self.days_long = []
|
|
|
|
# e0: started same day as assigned, zero duration
|
|
end = stime + delta0
|
|
e0 = Experiment.objects.create(name='e0', assigned=sday, start=stime,
|
|
end=end, completed=end.date())
|
|
self.deltas.append(delta0)
|
|
self.delays.append(e0.start -
|
|
datetime.datetime.combine(e0.assigned, midnight))
|
|
self.days_long.append(e0.completed - e0.assigned)
|
|
|
|
# e1: started one day after assigned, tiny duration, data
|
|
# set so that end time has no fractional seconds, which
|
|
# tests an edge case on sqlite. This Experiment is only
|
|
# included in the test data when the DB supports microsecond
|
|
# precision.
|
|
if connection.features.supports_microsecond_precision:
|
|
delay = datetime.timedelta(1)
|
|
end = stime + delay + delta1
|
|
e1 = Experiment.objects.create(name='e1', assigned=sday,
|
|
start=stime + delay, end=end, completed=end.date())
|
|
self.deltas.append(delta1)
|
|
self.delays.append(e1.start -
|
|
datetime.datetime.combine(e1.assigned, midnight))
|
|
self.days_long.append(e1.completed - e1.assigned)
|
|
|
|
# e2: started three days after assigned, small duration
|
|
end = stime + delta2
|
|
e2 = Experiment.objects.create(name='e2',
|
|
assigned=sday - datetime.timedelta(3), start=stime, end=end,
|
|
completed=end.date())
|
|
self.deltas.append(delta2)
|
|
self.delays.append(e2.start -
|
|
datetime.datetime.combine(e2.assigned, midnight))
|
|
self.days_long.append(e2.completed - e2.assigned)
|
|
|
|
# e3: started four days after assigned, medium duration
|
|
delay = datetime.timedelta(4)
|
|
end = stime + delay + delta3
|
|
e3 = Experiment.objects.create(name='e3',
|
|
assigned=sday, start=stime + delay, end=end, completed=end.date())
|
|
self.deltas.append(delta3)
|
|
self.delays.append(e3.start -
|
|
datetime.datetime.combine(e3.assigned, midnight))
|
|
self.days_long.append(e3.completed - e3.assigned)
|
|
|
|
# e4: started 10 days after assignment, long duration
|
|
end = stime + delta4
|
|
e4 = Experiment.objects.create(name='e4',
|
|
assigned=sday - datetime.timedelta(10), start=stime, end=end,
|
|
completed=end.date())
|
|
self.deltas.append(delta4)
|
|
self.delays.append(e4.start -
|
|
datetime.datetime.combine(e4.assigned, midnight))
|
|
self.days_long.append(e4.completed - e4.assigned)
|
|
self.expnames = [e.name for e in Experiment.objects.all()]
|
|
|
|
def test_multiple_query_compilation(self):
|
|
# Ticket #21643
|
|
queryset = Experiment.objects.filter(end__lt=F('start') + datetime.timedelta(hours=1))
|
|
q1 = str(queryset.query)
|
|
q2 = str(queryset.query)
|
|
self.assertEqual(q1, q2)
|
|
|
|
def test_query_clone(self):
|
|
# Ticket #21643
|
|
qs = Experiment.objects.filter(end__lt=F('start') + datetime.timedelta(hours=1))
|
|
qs2 = qs.all()
|
|
list(qs)
|
|
list(qs2)
|
|
|
|
def test_delta_add(self):
|
|
for i in range(len(self.deltas)):
|
|
delta = self.deltas[i]
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(end__lt=F('start') + delta)]
|
|
self.assertEqual(test_set, self.expnames[:i])
|
|
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(end__lte=F('start') + delta)]
|
|
self.assertEqual(test_set, self.expnames[:i + 1])
|
|
|
|
def test_delta_subtract(self):
|
|
for i in range(len(self.deltas)):
|
|
delta = self.deltas[i]
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(start__gt=F('end') - delta)]
|
|
self.assertEqual(test_set, self.expnames[:i])
|
|
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(start__gte=F('end') - delta)]
|
|
self.assertEqual(test_set, self.expnames[:i + 1])
|
|
|
|
def test_exclude(self):
|
|
for i in range(len(self.deltas)):
|
|
delta = self.deltas[i]
|
|
test_set = [e.name for e in
|
|
Experiment.objects.exclude(end__lt=F('start') + delta)]
|
|
self.assertEqual(test_set, self.expnames[i:])
|
|
|
|
test_set = [e.name for e in
|
|
Experiment.objects.exclude(end__lte=F('start') + delta)]
|
|
self.assertEqual(test_set, self.expnames[i + 1:])
|
|
|
|
def test_date_comparison(self):
|
|
for i in range(len(self.days_long)):
|
|
days = self.days_long[i]
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(completed__lt=F('assigned') + days)]
|
|
self.assertEqual(test_set, self.expnames[:i])
|
|
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(completed__lte=F('assigned') + days)]
|
|
self.assertEqual(test_set, self.expnames[:i + 1])
|
|
|
|
@skipUnlessDBFeature("supports_mixed_date_datetime_comparisons")
|
|
def test_mixed_comparisons1(self):
|
|
for i in range(len(self.delays)):
|
|
delay = self.delays[i]
|
|
if not connection.features.supports_microsecond_precision:
|
|
delay = datetime.timedelta(delay.days, delay.seconds)
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(assigned__gt=F('start') - delay)]
|
|
self.assertEqual(test_set, self.expnames[:i])
|
|
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(assigned__gte=F('start') - delay)]
|
|
self.assertEqual(test_set, self.expnames[:i + 1])
|
|
|
|
def test_mixed_comparisons2(self):
|
|
delays = [datetime.timedelta(delay.days) for delay in self.delays]
|
|
for i in range(len(delays)):
|
|
delay = delays[i]
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(start__lt=F('assigned') + delay)]
|
|
self.assertEqual(test_set, self.expnames[:i])
|
|
|
|
test_set = [e.name for e in
|
|
Experiment.objects.filter(start__lte=F('assigned') + delay +
|
|
datetime.timedelta(1))]
|
|
self.assertEqual(test_set, self.expnames[:i + 1])
|
|
|
|
def test_delta_update(self):
|
|
for i in range(len(self.deltas)):
|
|
delta = self.deltas[i]
|
|
exps = Experiment.objects.all()
|
|
expected_durations = [e.duration() for e in exps]
|
|
expected_starts = [e.start + delta for e in exps]
|
|
expected_ends = [e.end + delta for e in exps]
|
|
|
|
Experiment.objects.update(start=F('start') + delta, end=F('end') + delta)
|
|
exps = Experiment.objects.all()
|
|
new_starts = [e.start for e in exps]
|
|
new_ends = [e.end for e in exps]
|
|
new_durations = [e.duration() for e in exps]
|
|
self.assertEqual(expected_starts, new_starts)
|
|
self.assertEqual(expected_ends, new_ends)
|
|
self.assertEqual(expected_durations, new_durations)
|
|
|
|
def test_delta_invalid_op_mult(self):
|
|
raised = False
|
|
try:
|
|
repr(Experiment.objects.filter(end__lt=F('start') * self.deltas[0]))
|
|
except TypeError:
|
|
raised = True
|
|
self.assertTrue(raised, "TypeError not raised on attempt to multiply datetime by timedelta.")
|
|
|
|
def test_delta_invalid_op_div(self):
|
|
raised = False
|
|
try:
|
|
repr(Experiment.objects.filter(end__lt=F('start') / self.deltas[0]))
|
|
except TypeError:
|
|
raised = True
|
|
self.assertTrue(raised, "TypeError not raised on attempt to divide datetime by timedelta.")
|
|
|
|
def test_delta_invalid_op_mod(self):
|
|
raised = False
|
|
try:
|
|
repr(Experiment.objects.filter(end__lt=F('start') % self.deltas[0]))
|
|
except TypeError:
|
|
raised = True
|
|
self.assertTrue(raised, "TypeError not raised on attempt to modulo divide datetime by timedelta.")
|
|
|
|
def test_delta_invalid_op_and(self):
|
|
raised = False
|
|
try:
|
|
repr(Experiment.objects.filter(end__lt=F('start').bitand(self.deltas[0])))
|
|
except TypeError:
|
|
raised = True
|
|
self.assertTrue(raised, "TypeError not raised on attempt to binary and a datetime with a timedelta.")
|
|
|
|
def test_delta_invalid_op_or(self):
|
|
raised = False
|
|
try:
|
|
repr(Experiment.objects.filter(end__lt=F('start').bitor(self.deltas[0])))
|
|
except TypeError:
|
|
raised = True
|
|
self.assertTrue(raised, "TypeError not raised on attempt to binary or a datetime with a timedelta.")
|