445 lines
13 KiB
Python
445 lines
13 KiB
Python
# -*- encoding: utf-8 -*-
|
|
from __future__ import unicode_literals
|
|
|
|
from django.core.checks import Error
|
|
from django.db import models
|
|
from django.test.utils import override_settings
|
|
|
|
from .base import IsolatedModelsTestCase
|
|
|
|
|
|
class IndexTogetherTests(IsolatedModelsTestCase):
|
|
|
|
def test_non_iterable(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
index_together = 42
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'"index_together" must be a list or tuple.',
|
|
hint=None,
|
|
obj=Model,
|
|
id='E006',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_non_list(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
index_together = 'not-a-list'
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'"index_together" must be a list or tuple.',
|
|
hint=None,
|
|
obj=Model,
|
|
id='E006',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_list_containing_non_iterable(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
index_together = [
|
|
'non-iterable',
|
|
'second-non-iterable',
|
|
]
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'All "index_together" elements must be lists or tuples.',
|
|
hint=None,
|
|
obj=Model,
|
|
id='E007',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_pointing_to_missing_field(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
index_together = [
|
|
["missing_field"],
|
|
]
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'"index_together" points to a missing field named "missing_field".',
|
|
hint='Ensure that you did not misspell the field name.',
|
|
obj=Model,
|
|
id='E010',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_pointing_to_m2m_field(self):
|
|
class Model(models.Model):
|
|
m2m = models.ManyToManyField('self')
|
|
|
|
class Meta:
|
|
index_together = [
|
|
["m2m"],
|
|
]
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
('"index_together" refers to a m2m "m2m" field, but '
|
|
'ManyToManyFields are not supported in "index_together".'),
|
|
hint=None,
|
|
obj=Model,
|
|
id='E011',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
|
|
# unique_together tests are very similar to index_together tests.
|
|
class UniqueTogetherTests(IsolatedModelsTestCase):
|
|
|
|
def test_non_iterable(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
unique_together = 42
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'"unique_together" must be a list or tuple.',
|
|
hint=None,
|
|
obj=Model,
|
|
id='E008',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_list_containing_non_iterable(self):
|
|
class Model(models.Model):
|
|
one = models.IntegerField()
|
|
two = models.IntegerField()
|
|
|
|
class Meta:
|
|
unique_together = [('a', 'b'), 42]
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'All "unique_together" elements must be lists or tuples.',
|
|
hint=None,
|
|
obj=Model,
|
|
id='E009',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_valid_model(self):
|
|
class Model(models.Model):
|
|
one = models.IntegerField()
|
|
two = models.IntegerField()
|
|
|
|
class Meta:
|
|
# unique_together can be a simple tuple
|
|
unique_together = ('one', 'two')
|
|
|
|
errors = Model.check()
|
|
self.assertEqual(errors, [])
|
|
|
|
def test_pointing_to_missing_field(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
unique_together = [
|
|
["missing_field"],
|
|
]
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'"unique_together" points to a missing field named "missing_field".',
|
|
hint='Ensure that you did not misspell the field name.',
|
|
obj=Model,
|
|
id='E010',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_pointing_to_m2m(self):
|
|
class Model(models.Model):
|
|
m2m = models.ManyToManyField('self')
|
|
|
|
class Meta:
|
|
unique_together = [
|
|
["m2m"],
|
|
]
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
('"unique_together" refers to a m2m "m2m" field, but '
|
|
'ManyToManyFields are not supported in "unique_together".'),
|
|
hint=None,
|
|
obj=Model,
|
|
id='E011',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
|
|
class FieldNamesTests(IsolatedModelsTestCase):
|
|
|
|
def test_ending_with_underscore(self):
|
|
class Model(models.Model):
|
|
field_ = models.CharField(max_length=10)
|
|
m2m_ = models.ManyToManyField('self')
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'Field names must not end with underscores.',
|
|
hint=None,
|
|
obj=Model._meta.get_field('field_'),
|
|
id='E001',
|
|
),
|
|
Error(
|
|
'Field names must not end with underscores.',
|
|
hint=None,
|
|
obj=Model._meta.get_field('m2m_'),
|
|
id='E001',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_including_separator(self):
|
|
class Model(models.Model):
|
|
some__field = models.IntegerField()
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'Field names must not contain "__".',
|
|
hint=None,
|
|
obj=Model._meta.get_field('some__field'),
|
|
id='E052',
|
|
)
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_pk(self):
|
|
class Model(models.Model):
|
|
pk = models.IntegerField()
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'Cannot use "pk" as a field name since it is a reserved name.',
|
|
hint=None,
|
|
obj=Model._meta.get_field('pk'),
|
|
id='E051',
|
|
)
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
|
|
class ShadowingFieldsTests(IsolatedModelsTestCase):
|
|
|
|
def test_multiinheritance_clash(self):
|
|
class Mother(models.Model):
|
|
clash = models.IntegerField()
|
|
|
|
class Father(models.Model):
|
|
clash = models.IntegerField()
|
|
|
|
class Child(Mother, Father):
|
|
# Here we have two clashed: id (automatic field) and clash, because
|
|
# both parents define these fields.
|
|
pass
|
|
|
|
errors = Child.check()
|
|
expected = [
|
|
Error(
|
|
('The field "id" from parent model '
|
|
'invalid_models_tests.mother clashes with the field "id" '
|
|
'from parent model invalid_models_tests.father.'),
|
|
hint=None,
|
|
obj=Child,
|
|
id='E053',
|
|
),
|
|
Error(
|
|
('The field "clash" from parent model '
|
|
'invalid_models_tests.mother clashes with the field "clash" '
|
|
'from parent model invalid_models_tests.father.'),
|
|
hint=None,
|
|
obj=Child,
|
|
id='E053',
|
|
)
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_inheritance_clash(self):
|
|
class Parent(models.Model):
|
|
f_id = models.IntegerField()
|
|
|
|
class Target(models.Model):
|
|
# This field doesn't result in a clash.
|
|
f_id = models.IntegerField()
|
|
|
|
class Child(Parent):
|
|
# This field clashes with parent "f_id" field.
|
|
f = models.ForeignKey(Target)
|
|
|
|
errors = Child.check()
|
|
expected = [
|
|
Error(
|
|
('The field clashes with the field "f_id" '
|
|
'from model invalid_models_tests.parent.'),
|
|
hint=None,
|
|
obj=Child._meta.get_field('f'),
|
|
id='E054',
|
|
)
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_id_clash(self):
|
|
class Target(models.Model):
|
|
pass
|
|
|
|
class Model(models.Model):
|
|
fk = models.ForeignKey(Target)
|
|
fk_id = models.IntegerField()
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
('The field clashes with the field "fk" from model '
|
|
'invalid_models_tests.model.'),
|
|
hint=None,
|
|
obj=Model._meta.get_field('fk_id'),
|
|
id='E054',
|
|
)
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
|
|
class OtherModelTests(IsolatedModelsTestCase):
|
|
|
|
def test_unique_primary_key(self):
|
|
invalid_id = models.IntegerField(primary_key=False)
|
|
|
|
class Model(models.Model):
|
|
id = invalid_id
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
('You cannot use "id" as a field name, because each model '
|
|
'automatically gets an "id" field if none of the fields '
|
|
'have primary_key=True.'),
|
|
hint='Remove or rename "id" field or add primary_key=True to a field.',
|
|
obj=Model,
|
|
id='E005',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_ordering_non_iterable(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
ordering = "missing_field"
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
('"ordering" must be a tuple or list '
|
|
'(even if you want to order by only one field).'),
|
|
hint=None,
|
|
obj=Model,
|
|
id='E012',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_ordering_pointing_to_missing_field(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
ordering = ("missing_field",)
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'"ordering" pointing to a missing "missing_field" field.',
|
|
hint='Ensure that you did not misspell the field name.',
|
|
obj=Model,
|
|
id='E013',
|
|
)
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
@override_settings(TEST_SWAPPED_MODEL_BAD_VALUE='not-a-model')
|
|
def test_swappable_missing_app_name(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
swappable = 'TEST_SWAPPED_MODEL_BAD_VALUE'
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
'"TEST_SWAPPED_MODEL_BAD_VALUE" is not of the form "app_label.app_name".',
|
|
hint=None,
|
|
obj=Model,
|
|
id='E002',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
@override_settings(TEST_SWAPPED_MODEL_BAD_MODEL='not_an_app.Target')
|
|
def test_swappable_missing_app(self):
|
|
class Model(models.Model):
|
|
class Meta:
|
|
swappable = 'TEST_SWAPPED_MODEL_BAD_MODEL'
|
|
|
|
errors = Model.check()
|
|
expected = [
|
|
Error(
|
|
('The model has been swapped out for not_an_app.Target '
|
|
'which has not been installed or is abstract.'),
|
|
hint=('Ensure that you did not misspell the model name and '
|
|
'the app name as well as the model is not abstract. Does '
|
|
'your INSTALLED_APPS setting contain the "not_an_app" app?'),
|
|
obj=Model,
|
|
id='E003',
|
|
),
|
|
]
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_two_m2m_through_same_relationship(self):
|
|
class Person(models.Model):
|
|
pass
|
|
|
|
class Group(models.Model):
|
|
primary = models.ManyToManyField(Person,
|
|
through="Membership", related_name="primary")
|
|
secondary = models.ManyToManyField(Person, through="Membership",
|
|
related_name="secondary")
|
|
|
|
class Membership(models.Model):
|
|
person = models.ForeignKey(Person)
|
|
group = models.ForeignKey(Group)
|
|
|
|
errors = Group.check()
|
|
expected = [
|
|
Error(
|
|
('The model has two many-to-many relations through '
|
|
'the intermediary Membership model, which is not permitted.'),
|
|
hint=None,
|
|
obj=Group,
|
|
id='E004',
|
|
)
|
|
]
|
|
self.assertEqual(errors, expected)
|