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268 lines
10 KiB
Python
268 lines
10 KiB
Python
import unittest
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from django.db import NotSupportedError, connection
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from django.test import TestCase
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from .models import Contact, Customer
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class TupleLookupsTests(TestCase):
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@classmethod
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def setUpTestData(cls):
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super().setUpTestData()
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cls.customer_1 = Customer.objects.create(customer_id=1, company="a")
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cls.customer_2 = Customer.objects.create(customer_id=1, company="b")
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cls.customer_3 = Customer.objects.create(customer_id=2, company="c")
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cls.customer_4 = Customer.objects.create(customer_id=3, company="d")
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cls.customer_5 = Customer.objects.create(customer_id=1, company="e")
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cls.contact_1 = Contact.objects.create(customer=cls.customer_1)
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cls.contact_2 = Contact.objects.create(customer=cls.customer_1)
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cls.contact_3 = Contact.objects.create(customer=cls.customer_2)
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cls.contact_4 = Contact.objects.create(customer=cls.customer_3)
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cls.contact_5 = Contact.objects.create(customer=cls.customer_1)
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cls.contact_6 = Contact.objects.create(customer=cls.customer_5)
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def test_exact(self):
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test_cases = (
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(self.customer_1, (self.contact_1, self.contact_2, self.contact_5)),
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(self.customer_2, (self.contact_3,)),
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(self.customer_3, (self.contact_4,)),
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(self.customer_4, ()),
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(self.customer_5, (self.contact_6,)),
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)
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for customer, contacts in test_cases:
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with self.subTest(customer=customer, contacts=contacts):
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self.assertSequenceEqual(
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Contact.objects.filter(customer=customer).order_by("id"), contacts
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)
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def test_exact_subquery(self):
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with self.assertRaisesMessage(
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NotSupportedError, "'exact' doesn't support multi-column subqueries."
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):
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subquery = Customer.objects.filter(id=self.customer_1.id)[:1]
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self.assertSequenceEqual(
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Contact.objects.filter(customer=subquery).order_by("id"), ()
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)
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def test_in(self):
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cust_1, cust_2, cust_3, cust_4, cust_5 = (
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self.customer_1,
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self.customer_2,
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self.customer_3,
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self.customer_4,
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self.customer_5,
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)
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c1, c2, c3, c4, c5, c6 = (
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self.contact_1,
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self.contact_2,
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self.contact_3,
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self.contact_4,
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self.contact_5,
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self.contact_6,
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)
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test_cases = (
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((), ()),
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((cust_1,), (c1, c2, c5)),
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((cust_1, cust_2), (c1, c2, c3, c5)),
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((cust_1, cust_2, cust_3), (c1, c2, c3, c4, c5)),
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((cust_1, cust_2, cust_3, cust_4), (c1, c2, c3, c4, c5)),
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((cust_1, cust_2, cust_3, cust_4, cust_5), (c1, c2, c3, c4, c5, c6)),
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)
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for contacts, customers in test_cases:
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with self.subTest(contacts=contacts, customers=customers):
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self.assertSequenceEqual(
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Contact.objects.filter(customer__in=contacts).order_by("id"),
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customers,
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)
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@unittest.skipIf(
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connection.vendor == "mysql",
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"MySQL doesn't support LIMIT & IN/ALL/ANY/SOME subquery",
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)
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def test_in_subquery(self):
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subquery = Customer.objects.filter(id=self.customer_1.id)[:1]
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self.assertSequenceEqual(
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Contact.objects.filter(customer__in=subquery).order_by("id"),
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(self.contact_1, self.contact_2, self.contact_5),
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)
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def test_lt(self):
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c1, c2, c3, c4, c5, c6 = (
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self.contact_1,
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self.contact_2,
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self.contact_3,
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self.contact_4,
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self.contact_5,
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self.contact_6,
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)
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test_cases = (
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(self.customer_1, ()),
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(self.customer_2, (c1, c2, c5)),
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(self.customer_5, (c1, c2, c3, c5)),
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(self.customer_3, (c1, c2, c3, c5, c6)),
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(self.customer_4, (c1, c2, c3, c4, c5, c6)),
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)
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for customer, contacts in test_cases:
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with self.subTest(customer=customer, contacts=contacts):
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self.assertSequenceEqual(
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Contact.objects.filter(customer__lt=customer).order_by("id"),
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contacts,
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)
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def test_lt_subquery(self):
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with self.assertRaisesMessage(
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NotSupportedError, "'lt' doesn't support multi-column subqueries."
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):
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subquery = Customer.objects.filter(id=self.customer_1.id)[:1]
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self.assertSequenceEqual(
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Contact.objects.filter(customer__lt=subquery).order_by("id"), ()
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)
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def test_lte(self):
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c1, c2, c3, c4, c5, c6 = (
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self.contact_1,
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self.contact_2,
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self.contact_3,
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self.contact_4,
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self.contact_5,
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self.contact_6,
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)
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test_cases = (
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(self.customer_1, (c1, c2, c5)),
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(self.customer_2, (c1, c2, c3, c5)),
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(self.customer_5, (c1, c2, c3, c5, c6)),
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(self.customer_3, (c1, c2, c3, c4, c5, c6)),
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(self.customer_4, (c1, c2, c3, c4, c5, c6)),
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)
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for customer, contacts in test_cases:
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with self.subTest(customer=customer, contacts=contacts):
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self.assertSequenceEqual(
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Contact.objects.filter(customer__lte=customer).order_by("id"),
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contacts,
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)
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def test_lte_subquery(self):
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with self.assertRaisesMessage(
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NotSupportedError, "'lte' doesn't support multi-column subqueries."
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):
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subquery = Customer.objects.filter(id=self.customer_1.id)[:1]
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self.assertSequenceEqual(
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Contact.objects.filter(customer__lte=subquery).order_by("id"), ()
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)
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def test_gt(self):
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test_cases = (
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(self.customer_1, (self.contact_3, self.contact_4, self.contact_6)),
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(self.customer_2, (self.contact_4, self.contact_6)),
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(self.customer_5, (self.contact_4,)),
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(self.customer_3, ()),
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(self.customer_4, ()),
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)
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for customer, contacts in test_cases:
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with self.subTest(customer=customer, contacts=contacts):
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self.assertSequenceEqual(
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Contact.objects.filter(customer__gt=customer).order_by("id"),
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contacts,
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)
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def test_gt_subquery(self):
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with self.assertRaisesMessage(
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NotSupportedError, "'gt' doesn't support multi-column subqueries."
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):
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subquery = Customer.objects.filter(id=self.customer_1.id)[:1]
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self.assertSequenceEqual(
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Contact.objects.filter(customer__gt=subquery).order_by("id"), ()
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)
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def test_gte(self):
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c1, c2, c3, c4, c5, c6 = (
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self.contact_1,
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self.contact_2,
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self.contact_3,
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self.contact_4,
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self.contact_5,
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self.contact_6,
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)
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test_cases = (
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(self.customer_1, (c1, c2, c3, c4, c5, c6)),
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(self.customer_2, (c3, c4, c6)),
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(self.customer_5, (c4, c6)),
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(self.customer_3, (c4,)),
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(self.customer_4, ()),
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)
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for customer, contacts in test_cases:
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with self.subTest(customer=customer, contacts=contacts):
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self.assertSequenceEqual(
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Contact.objects.filter(customer__gte=customer).order_by("pk"),
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contacts,
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)
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def test_gte_subquery(self):
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with self.assertRaisesMessage(
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NotSupportedError, "'gte' doesn't support multi-column subqueries."
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):
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subquery = Customer.objects.filter(id=self.customer_1.id)[:1]
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self.assertSequenceEqual(
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Contact.objects.filter(customer__gte=subquery).order_by("id"), ()
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)
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def test_isnull(self):
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with self.subTest("customer__isnull=True"):
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self.assertSequenceEqual(
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Contact.objects.filter(customer__isnull=True).order_by("id"),
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(),
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)
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with self.subTest("customer__isnull=False"):
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self.assertSequenceEqual(
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Contact.objects.filter(customer__isnull=False).order_by("id"),
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(
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self.contact_1,
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self.contact_2,
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self.contact_3,
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self.contact_4,
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self.contact_5,
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self.contact_6,
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),
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)
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def test_isnull_subquery(self):
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with self.assertRaisesMessage(
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NotSupportedError, "'isnull' doesn't support multi-column subqueries."
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):
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subquery = Customer.objects.filter(id=0)[:1]
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self.assertSequenceEqual(
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Contact.objects.filter(customer__isnull=subquery).order_by("id"), ()
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)
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def test_lookup_errors(self):
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m_2_elements = "'%s' lookup of 'customer' field must have 2 elements"
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m_2_elements_each = "'in' lookup of 'customer' field must have 2 elements each"
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test_cases = (
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({"customer": 1}, m_2_elements % "exact"),
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({"customer": (1, 2, 3)}, m_2_elements % "exact"),
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({"customer__in": (1, 2, 3)}, m_2_elements_each),
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({"customer__in": ("foo", "bar")}, m_2_elements_each),
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({"customer__gt": 1}, m_2_elements % "gt"),
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({"customer__gt": (1, 2, 3)}, m_2_elements % "gt"),
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({"customer__gte": 1}, m_2_elements % "gte"),
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({"customer__gte": (1, 2, 3)}, m_2_elements % "gte"),
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({"customer__lt": 1}, m_2_elements % "lt"),
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({"customer__lt": (1, 2, 3)}, m_2_elements % "lt"),
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({"customer__lte": 1}, m_2_elements % "lte"),
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({"customer__lte": (1, 2, 3)}, m_2_elements % "lte"),
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)
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for kwargs, message in test_cases:
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with (
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self.subTest(kwargs=kwargs),
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self.assertRaisesMessage(ValueError, message),
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):
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Contact.objects.get(**kwargs)
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