Refs #373 -- Added support for using tuple lookups in filters.

tests/foreign_object/test_tuple_lookups.py

@@ -1,6 +1,16 @@
 import unittest
 
 from django.db import NotSupportedError, connection
+from django.db.models import F
+from django.db.models.fields.tuple_lookups import (
+    TupleExact,
+    TupleGreaterThan,
+    TupleGreaterThanOrEqual,
+    TupleIn,
+    TupleIsNull,
+    TupleLessThan,
+    TupleLessThanOrEqual,
+)
 from django.test import TestCase
 
 from .models import Contact, Customer
@@ -32,10 +42,25 @@ class TupleLookupsTests(TestCase):
         )
 
         for customer, contacts in test_cases:
-            with self.subTest(customer=customer, contacts=contacts):
+            with self.subTest(
+                "filter(customer=customer)",
+                customer=customer,
+                contacts=contacts,
+            ):
                 self.assertSequenceEqual(
                     Contact.objects.filter(customer=customer).order_by("id"), contacts
                 )
+            with self.subTest(
+                "filter(TupleExact)",
+                customer=customer,
+                contacts=contacts,
+            ):
+                lhs = (F("customer_code"), F("company_code"))
+                rhs = (customer.customer_id, customer.company)
+                lookup = TupleExact(lhs, rhs)
+                self.assertSequenceEqual(
+                    Contact.objects.filter(lookup).order_by("id"), contacts
+                )
 
     def test_exact_subquery(self):
         with self.assertRaisesMessage(
@@ -71,11 +96,26 @@ class TupleLookupsTests(TestCase):
             ((cust_1, cust_2, cust_3, cust_4, cust_5), (c1, c2, c3, c4, c5, c6)),
         )
 
-        for contacts, customers in test_cases:
-            with self.subTest(contacts=contacts, customers=customers):
+        for customers, contacts in test_cases:
+            with self.subTest(
+                "filter(customer__in=customers)",
+                customers=customers,
+                contacts=contacts,
+            ):
                 self.assertSequenceEqual(
-                    Contact.objects.filter(customer__in=contacts).order_by("id"),
-                    customers,
+                    Contact.objects.filter(customer__in=customers).order_by("id"),
+                    contacts,
+                )
+            with self.subTest(
+                "filter(TupleIn)",
+                customers=customers,
+                contacts=contacts,
+            ):
+                lhs = (F("customer_code"), F("company_code"))
+                rhs = [(c.customer_id, c.company) for c in customers]
+                lookup = TupleIn(lhs, rhs)
+                self.assertSequenceEqual(
+                    Contact.objects.filter(lookup).order_by("id"), contacts
                 )
 
     @unittest.skipIf(
@@ -107,11 +147,26 @@ class TupleLookupsTests(TestCase):
         )
 
         for customer, contacts in test_cases:
-            with self.subTest(customer=customer, contacts=contacts):
+            with self.subTest(
+                "filter(customer__lt=customer)",
+                customer=customer,
+                contacts=contacts,
+            ):
                 self.assertSequenceEqual(
                     Contact.objects.filter(customer__lt=customer).order_by("id"),
                     contacts,
                 )
+            with self.subTest(
+                "filter(TupleLessThan)",
+                customer=customer,
+                contacts=contacts,
+            ):
+                lhs = (F("customer_code"), F("company_code"))
+                rhs = (customer.customer_id, customer.company)
+                lookup = TupleLessThan(lhs, rhs)
+                self.assertSequenceEqual(
+                    Contact.objects.filter(lookup).order_by("id"), contacts
+                )
 
     def test_lt_subquery(self):
         with self.assertRaisesMessage(
@@ -140,11 +195,26 @@ class TupleLookupsTests(TestCase):
         )
 
         for customer, contacts in test_cases:
-            with self.subTest(customer=customer, contacts=contacts):
+            with self.subTest(
+                "filter(customer__lte=customer)",
+                customer=customer,
+                contacts=contacts,
+            ):
                 self.assertSequenceEqual(
                     Contact.objects.filter(customer__lte=customer).order_by("id"),
                     contacts,
                 )
+            with self.subTest(
+                "filter(TupleLessThanOrEqual)",
+                customer=customer,
+                contacts=contacts,
+            ):
+                lhs = (F("customer_code"), F("company_code"))
+                rhs = (customer.customer_id, customer.company)
+                lookup = TupleLessThanOrEqual(lhs, rhs)
+                self.assertSequenceEqual(
+                    Contact.objects.filter(lookup).order_by("id"), contacts
+                )
 
     def test_lte_subquery(self):
         with self.assertRaisesMessage(
@@ -165,11 +235,26 @@ class TupleLookupsTests(TestCase):
         )
 
         for customer, contacts in test_cases:
-            with self.subTest(customer=customer, contacts=contacts):
+            with self.subTest(
+                "filter(customer__gt=customer)",
+                customer=customer,
+                contacts=contacts,
+            ):
                 self.assertSequenceEqual(
                     Contact.objects.filter(customer__gt=customer).order_by("id"),
                     contacts,
                 )
+            with self.subTest(
+                "filter(TupleGreaterThan)",
+                customer=customer,
+                contacts=contacts,
+            ):
+                lhs = (F("customer_code"), F("company_code"))
+                rhs = (customer.customer_id, customer.company)
+                lookup = TupleGreaterThan(lhs, rhs)
+                self.assertSequenceEqual(
+                    Contact.objects.filter(lookup).order_by("id"), contacts
+                )
 
     def test_gt_subquery(self):
         with self.assertRaisesMessage(
@@ -198,11 +283,26 @@ class TupleLookupsTests(TestCase):
         )
 
         for customer, contacts in test_cases:
-            with self.subTest(customer=customer, contacts=contacts):
+            with self.subTest(
+                "filter(customer__gte=customer)",
+                customer=customer,
+                contacts=contacts,
+            ):
                 self.assertSequenceEqual(
                     Contact.objects.filter(customer__gte=customer).order_by("pk"),
                     contacts,
                 )
+            with self.subTest(
+                "filter(TupleGreaterThanOrEqual)",
+                customer=customer,
+                contacts=contacts,
+            ):
+                lhs = (F("customer_code"), F("company_code"))
+                rhs = (customer.customer_id, customer.company)
+                lookup = TupleGreaterThanOrEqual(lhs, rhs)
+                self.assertSequenceEqual(
+                    Contact.objects.filter(lookup).order_by("id"), contacts
+                )
 
     def test_gte_subquery(self):
         with self.assertRaisesMessage(
@@ -214,22 +314,38 @@ class TupleLookupsTests(TestCase):
             )
 
     def test_isnull(self):
-        with self.subTest("customer__isnull=True"):
+        contacts = (
+            self.contact_1,
+            self.contact_2,
+            self.contact_3,
+            self.contact_4,
+            self.contact_5,
+            self.contact_6,
+        )
+
+        with self.subTest("filter(customer__isnull=True)"):
             self.assertSequenceEqual(
                 Contact.objects.filter(customer__isnull=True).order_by("id"),
                 (),
             )
-        with self.subTest("customer__isnull=False"):
+        with self.subTest("filter(TupleIsNull(True))"):
+            lhs = (F("customer_code"), F("company_code"))
+            lookup = TupleIsNull(lhs, True)
+            self.assertSequenceEqual(
+                Contact.objects.filter(lookup).order_by("id"),
+                (),
+            )
+        with self.subTest("filter(customer__isnull=False)"):
             self.assertSequenceEqual(
                 Contact.objects.filter(customer__isnull=False).order_by("id"),
-                (
-                    self.contact_1,
-                    self.contact_2,
-                    self.contact_3,
-                    self.contact_4,
-                    self.contact_5,
-                    self.contact_6,
-                ),
+                contacts,
+            )
+        with self.subTest("filter(TupleIsNull(False))"):
+            lhs = (F("customer_code"), F("company_code"))
+            lookup = TupleIsNull(lhs, False)
+            self.assertSequenceEqual(
+                Contact.objects.filter(lookup).order_by("id"),
+                contacts,
             )
 
     def test_isnull_subquery(self):