def test_cannot_insert_duplicate_row(self):
"""Inserting a duplicate rows shouldn't work."""
self.model_class.objects.create(f1='a', f2='b')
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
with captured_stderr():
with self.assertRaises(IntegrityError):
with transaction.atomic():
self.model_class.objects.create(f1='a', f2='b')
def test_cannot_insert_duplicate_row(self):
"""Inserting a duplicate rows shouldn't work."""
self.model_class.objects.create(f1='a', f2='b')
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
with captured_stderr():
with self.assertRaises(IntegrityError):
with transaction.atomic():
self.model_class.objects.create(f1='a', f2='b')
def test_clear_removes_unique(self):
"""
Removing a unique constraint should relax duplicate row
validation
"""
self.model_class.objects.create(f1='a', f2='b')
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
self.ut.field_defs.clear()
self.model_class.objects.create(f1='a', f2='b')
def test_cannot_create_unique(self):
"""Creating a unique key on a table with duplicate rows
shouldn't work"""
self.model_class.objects.create(f1='a', f2='b')
self.model_class.objects.create(f1='a', f2='b')
with captured_stderr():
with self.assertRaises(IntegrityError):
with transaction.atomic():
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
def test_db_column(self):
"""Make sure a unique index creation works correctly when using a
custom `db_column`. This is needed for unique FK's columns."""
self.f2.db_column = 'f2_column'
self.f2.save()
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
self.f2.db_column = 'f2'
self.f2.save()
self.ut.delete()
def test_clear_removes_unique(self):
"""
Removing a unique constraint should relax duplicate row
validation
"""
self.model_class.objects.create(f1='a', f2='b')
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
self.ut.field_defs.clear()
self.model_class.objects.create(f1='a', f2='b')
def test_cannot_create_unique(self):
"""Creating a unique key on a table with duplicate rows
shouldn't work"""
self.model_class.objects.create(f1='a', f2='b')
self.model_class.objects.create(f1='a', f2='b')
with captured_stderr():
with self.assertRaises(IntegrityError):
with transaction.atomic():
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
def test_db_column(self):
"""Make sure a unique index creation works correctly when using a
custom `db_column`. This is needed for unique FK's columns."""
self.f2.db_column = 'f2_column'
self.f2.save()
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
self.f2.db_column = 'f2'
self.f2.save()
self.ut.delete()
def test_cannot_remove_unique(self):
"""Removing a unique constraint that cause duplicate rows shouldn't
work."""
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
self.model_class.objects.create(f1='a', f2='b')
self.model_class.objects.create(f1='a', f2='c')
with captured_stderr():
with self.assertRaises(IntegrityError):
with transaction.atomic():
self.ut.field_defs.remove(self.f2)
def test_cannot_remove_unique(self):
"""Removing a unique constraint that cause duplicate rows shouldn't
work."""
many_to_many_set(self.ut, 'field_defs', [self.f1, self.f2])
self.model_class.objects.create(f1='a', f2='b')
self.model_class.objects.create(f1='a', f2='c')
with captured_stderr():
with self.assertRaises(IntegrityError):
with transaction.atomic():
self.ut.field_defs.remove(self.f2)
def test_clean(self):
"""Make sure we can't create a unique key with two fields of two
different models"""
other_model_def = ModelDefinition.objects.create(
app_label='mutant', object_name='OtherModel')
with self.assertChecksumChange(other_model_def):
f2 = CharFieldDefinition.objects.create(model_def=other_model_def,
name='f2',
max_length=25)
many_to_many_set(self.ut, 'field_defs', [self.f1, f2])
self.assertRaises(ValidationError, self.ut.clean)
def test_clean(self):
"""Make sure we can't create a unique key with two fields of two
different models"""
other_model_def = ModelDefinition.objects.create(
app_label='mutant', object_name='OtherModel'
)
with self.assertChecksumChange(other_model_def):
f2 = CharFieldDefinition.objects.create(
model_def=other_model_def, name='f2', max_length=25
)
many_to_many_set(self.ut, 'field_defs', [self.f1, f2])
self.assertRaises(ValidationError, self.ut.clean)