Split model_fields tests into different files.

tests/model_fields/test_booleanfield.py

@@ -0,0 +1,119 @@
+from django.core.exceptions import ValidationError
+from django.db import IntegrityError, connection, models, transaction
+from django.test import SimpleTestCase, TestCase
+
+from .models import BooleanModel, FksToBooleans, NullBooleanModel
+
+
+class BooleanFieldTests(TestCase):
+    def _test_get_db_prep_lookup(self, f):
+        self.assertEqual(f.get_db_prep_lookup('exact', True, connection=connection), [True])
+        self.assertEqual(f.get_db_prep_lookup('exact', '1', connection=connection), [True])
+        self.assertEqual(f.get_db_prep_lookup('exact', 1, connection=connection), [True])
+        self.assertEqual(f.get_db_prep_lookup('exact', False, connection=connection), [False])
+        self.assertEqual(f.get_db_prep_lookup('exact', '0', connection=connection), [False])
+        self.assertEqual(f.get_db_prep_lookup('exact', 0, connection=connection), [False])
+        self.assertEqual(f.get_db_prep_lookup('exact', None, connection=connection), [None])
+
+    def _test_to_python(self, f):
+        self.assertIs(f.to_python(1), True)
+        self.assertIs(f.to_python(0), False)
+
+    def test_booleanfield_get_db_prep_lookup(self):
+        self._test_get_db_prep_lookup(models.BooleanField())
+
+    def test_nullbooleanfield_get_db_prep_lookup(self):
+        self._test_get_db_prep_lookup(models.NullBooleanField())
+
+    def test_booleanfield_to_python(self):
+        self._test_to_python(models.BooleanField())
+
+    def test_nullbooleanfield_to_python(self):
+        self._test_to_python(models.NullBooleanField())
+
+    def test_booleanfield_choices_blank(self):
+        """
+        BooleanField with choices and defaults doesn't generate a formfield
+        with the blank option (#9640, #10549).
+        """
+        choices = [(1, 'Si'), (2, 'No')]
+        f = models.BooleanField(choices=choices, default=1, null=False)
+        self.assertEqual(f.formfield().choices, choices)
+
+    def test_return_type(self):
+        b = BooleanModel.objects.create(bfield=True)
+        b.refresh_from_db()
+        self.assertEqual(b.bfield, True)
+
+        b2 = BooleanModel.objects.create(bfield=False)
+        b2.refresh_from_db()
+        self.assertEqual(b2.bfield, False)
+
+        b3 = NullBooleanModel.objects.create(nbfield=True)
+        b3.refresh_from_db()
+        self.assertEqual(b3.nbfield, True)
+
+        b4 = NullBooleanModel.objects.create(nbfield=False)
+        b4.refresh_from_db()
+        self.assertEqual(b4.nbfield, False)
+
+        # When an extra clause exists, the boolean conversions are applied with
+        # an offset (#13293).
+        b5 = BooleanModel.objects.all().extra(select={'string_col': 'string'})[0]
+        self.assertNotIsInstance(b5.pk, bool)
+
+    def test_select_related(self):
+        """
+        Boolean fields retrieved via select_related() should return booleans.
+        """
+        bmt = BooleanModel.objects.create(bfield=True)
+        bmf = BooleanModel.objects.create(bfield=False)
+        nbmt = NullBooleanModel.objects.create(nbfield=True)
+        nbmf = NullBooleanModel.objects.create(nbfield=False)
+        m1 = FksToBooleans.objects.create(bf=bmt, nbf=nbmt)
+        m2 = FksToBooleans.objects.create(bf=bmf, nbf=nbmf)
+
+        # select_related('fk_field_name')
+        ma = FksToBooleans.objects.select_related('bf').get(pk=m1.id)
+        self.assertEqual(ma.bf.bfield, True)
+        self.assertEqual(ma.nbf.nbfield, True)
+
+        # select_related()
+        mb = FksToBooleans.objects.select_related().get(pk=m1.id)
+        mc = FksToBooleans.objects.select_related().get(pk=m2.id)
+        self.assertEqual(mb.bf.bfield, True)
+        self.assertEqual(mb.nbf.nbfield, True)
+        self.assertEqual(mc.bf.bfield, False)
+        self.assertEqual(mc.nbf.nbfield, False)
+
+    def test_null_default(self):
+        """
+        A BooleanField defaults to None, which isn't a valid value (#15124).
+        """
+        boolean_field = BooleanModel._meta.get_field('bfield')
+        self.assertFalse(boolean_field.has_default())
+        b = BooleanModel()
+        self.assertIsNone(b.bfield)
+        with transaction.atomic():
+            with self.assertRaises(IntegrityError):
+                b.save()
+
+        nb = NullBooleanModel()
+        self.assertIsNone(nb.nbfield)
+        nb.save()  # no error
+
+
+class ValidationTest(SimpleTestCase):
+
+    def test_boolean_field_doesnt_accept_empty_input(self):
+        f = models.BooleanField()
+        with self.assertRaises(ValidationError):
+            f.clean(None, None)
+
+    def test_nullbooleanfield_blank(self):
+        """
+        NullBooleanField shouldn't throw a validation error when given a value
+        of None.
+        """
+        nullboolean = NullBooleanModel(nbfield=None)
+        nullboolean.full_clean()