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