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457 lines
16 KiB
Python
457 lines
16 KiB
Python
from unittest import mock
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from django.core import checks
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from django.core.checks import Error, Warning
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from django.db import models
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from django.test import SimpleTestCase, TestCase, skipUnlessDBFeature
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from django.test.utils import (
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isolate_apps, modify_settings, override_settings, override_system_checks,
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)
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class EmptyRouter:
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pass
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@isolate_apps('check_framework', attr_name='apps')
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@override_system_checks([checks.model_checks.check_all_models])
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class DuplicateDBTableTests(SimpleTestCase):
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def test_collision_in_same_app(self):
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class Model1(models.Model):
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class Meta:
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db_table = 'test_table'
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class Model2(models.Model):
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class Meta:
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db_table = 'test_table'
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Error(
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"db_table 'test_table' is used by multiple models: "
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"check_framework.Model1, check_framework.Model2.",
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obj='test_table',
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id='models.E028',
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)
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])
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@override_settings(DATABASE_ROUTERS=['check_framework.test_model_checks.EmptyRouter'])
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def test_collision_in_same_app_database_routers_installed(self):
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class Model1(models.Model):
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class Meta:
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db_table = 'test_table'
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class Model2(models.Model):
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class Meta:
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db_table = 'test_table'
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Warning(
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"db_table 'test_table' is used by multiple models: "
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"check_framework.Model1, check_framework.Model2.",
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hint=(
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'You have configured settings.DATABASE_ROUTERS. Verify '
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'that check_framework.Model1, check_framework.Model2 are '
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'correctly routed to separate databases.'
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),
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obj='test_table',
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id='models.W035',
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)
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])
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@modify_settings(INSTALLED_APPS={'append': 'basic'})
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@isolate_apps('basic', 'check_framework', kwarg_name='apps')
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def test_collision_across_apps(self, apps):
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class Model1(models.Model):
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class Meta:
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app_label = 'basic'
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db_table = 'test_table'
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class Model2(models.Model):
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class Meta:
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app_label = 'check_framework'
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db_table = 'test_table'
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self.assertEqual(checks.run_checks(app_configs=apps.get_app_configs()), [
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Error(
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"db_table 'test_table' is used by multiple models: "
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"basic.Model1, check_framework.Model2.",
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obj='test_table',
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id='models.E028',
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)
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])
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@modify_settings(INSTALLED_APPS={'append': 'basic'})
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@override_settings(DATABASE_ROUTERS=['check_framework.test_model_checks.EmptyRouter'])
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@isolate_apps('basic', 'check_framework', kwarg_name='apps')
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def test_collision_across_apps_database_routers_installed(self, apps):
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class Model1(models.Model):
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class Meta:
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app_label = 'basic'
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db_table = 'test_table'
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class Model2(models.Model):
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class Meta:
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app_label = 'check_framework'
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db_table = 'test_table'
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self.assertEqual(checks.run_checks(app_configs=apps.get_app_configs()), [
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Warning(
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"db_table 'test_table' is used by multiple models: "
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"basic.Model1, check_framework.Model2.",
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hint=(
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'You have configured settings.DATABASE_ROUTERS. Verify '
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'that basic.Model1, check_framework.Model2 are correctly '
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'routed to separate databases.'
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),
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obj='test_table',
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id='models.W035',
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)
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])
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def test_no_collision_for_unmanaged_models(self):
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class Unmanaged(models.Model):
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class Meta:
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db_table = 'test_table'
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managed = False
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class Managed(models.Model):
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class Meta:
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db_table = 'test_table'
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [])
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def test_no_collision_for_proxy_models(self):
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class Model(models.Model):
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class Meta:
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db_table = 'test_table'
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class ProxyModel(Model):
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class Meta:
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proxy = True
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self.assertEqual(Model._meta.db_table, ProxyModel._meta.db_table)
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [])
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@isolate_apps('check_framework', attr_name='apps')
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@override_system_checks([checks.model_checks.check_all_models])
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class IndexNameTests(SimpleTestCase):
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def test_collision_in_same_model(self):
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index = models.Index(fields=['id'], name='foo')
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class Model(models.Model):
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class Meta:
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indexes = [index, index]
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Error(
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"index name 'foo' is not unique for model check_framework.Model.",
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id='models.E029',
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),
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])
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def test_collision_in_different_models(self):
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index = models.Index(fields=['id'], name='foo')
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class Model1(models.Model):
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class Meta:
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indexes = [index]
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class Model2(models.Model):
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class Meta:
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indexes = [index]
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Error(
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"index name 'foo' is not unique among models: "
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"check_framework.Model1, check_framework.Model2.",
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id='models.E030',
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),
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])
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def test_collision_abstract_model(self):
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class AbstractModel(models.Model):
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class Meta:
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indexes = [models.Index(fields=['id'], name='foo')]
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abstract = True
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class Model1(AbstractModel):
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pass
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class Model2(AbstractModel):
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pass
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Error(
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"index name 'foo' is not unique among models: "
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"check_framework.Model1, check_framework.Model2.",
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id='models.E030',
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),
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])
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def test_no_collision_abstract_model_interpolation(self):
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class AbstractModel(models.Model):
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name = models.CharField(max_length=20)
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class Meta:
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indexes = [models.Index(fields=['name'], name='%(app_label)s_%(class)s_foo')]
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abstract = True
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class Model1(AbstractModel):
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pass
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class Model2(AbstractModel):
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pass
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [])
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@modify_settings(INSTALLED_APPS={'append': 'basic'})
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@isolate_apps('basic', 'check_framework', kwarg_name='apps')
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def test_collision_across_apps(self, apps):
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index = models.Index(fields=['id'], name='foo')
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class Model1(models.Model):
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class Meta:
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app_label = 'basic'
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indexes = [index]
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class Model2(models.Model):
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class Meta:
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app_label = 'check_framework'
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indexes = [index]
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self.assertEqual(checks.run_checks(app_configs=apps.get_app_configs()), [
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Error(
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"index name 'foo' is not unique among models: basic.Model1, "
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"check_framework.Model2.",
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id='models.E030',
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),
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])
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@modify_settings(INSTALLED_APPS={'append': 'basic'})
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@isolate_apps('basic', 'check_framework', kwarg_name='apps')
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def test_no_collision_across_apps_interpolation(self, apps):
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index = models.Index(fields=['id'], name='%(app_label)s_%(class)s_foo')
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class Model1(models.Model):
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class Meta:
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app_label = 'basic'
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constraints = [index]
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class Model2(models.Model):
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class Meta:
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app_label = 'check_framework'
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constraints = [index]
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self.assertEqual(checks.run_checks(app_configs=apps.get_app_configs()), [])
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@isolate_apps('check_framework', attr_name='apps')
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@override_system_checks([checks.model_checks.check_all_models])
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@skipUnlessDBFeature('supports_table_check_constraints')
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class ConstraintNameTests(TestCase):
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def test_collision_in_same_model(self):
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class Model(models.Model):
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class Meta:
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constraints = [
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models.CheckConstraint(check=models.Q(id__gt=0), name='foo'),
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models.CheckConstraint(check=models.Q(id__lt=100), name='foo'),
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]
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Error(
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"constraint name 'foo' is not unique for model "
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"check_framework.Model.",
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id='models.E031',
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),
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])
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def test_collision_in_different_models(self):
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constraint = models.CheckConstraint(check=models.Q(id__gt=0), name='foo')
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class Model1(models.Model):
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class Meta:
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constraints = [constraint]
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class Model2(models.Model):
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class Meta:
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constraints = [constraint]
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Error(
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"constraint name 'foo' is not unique among models: "
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"check_framework.Model1, check_framework.Model2.",
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id='models.E032',
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),
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])
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def test_collision_abstract_model(self):
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class AbstractModel(models.Model):
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class Meta:
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constraints = [models.CheckConstraint(check=models.Q(id__gt=0), name='foo')]
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abstract = True
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class Model1(AbstractModel):
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pass
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class Model2(AbstractModel):
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pass
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Error(
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"constraint name 'foo' is not unique among models: "
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"check_framework.Model1, check_framework.Model2.",
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id='models.E032',
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),
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])
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def test_no_collision_abstract_model_interpolation(self):
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class AbstractModel(models.Model):
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class Meta:
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constraints = [
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models.CheckConstraint(check=models.Q(id__gt=0), name='%(app_label)s_%(class)s_foo'),
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]
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abstract = True
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class Model1(AbstractModel):
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pass
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class Model2(AbstractModel):
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pass
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [])
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@modify_settings(INSTALLED_APPS={'append': 'basic'})
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@isolate_apps('basic', 'check_framework', kwarg_name='apps')
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def test_collision_across_apps(self, apps):
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constraint = models.CheckConstraint(check=models.Q(id__gt=0), name='foo')
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class Model1(models.Model):
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class Meta:
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app_label = 'basic'
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constraints = [constraint]
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class Model2(models.Model):
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class Meta:
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app_label = 'check_framework'
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constraints = [constraint]
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self.assertEqual(checks.run_checks(app_configs=apps.get_app_configs()), [
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Error(
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"constraint name 'foo' is not unique among models: "
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"basic.Model1, check_framework.Model2.",
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id='models.E032',
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),
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])
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@modify_settings(INSTALLED_APPS={'append': 'basic'})
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@isolate_apps('basic', 'check_framework', kwarg_name='apps')
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def test_no_collision_across_apps_interpolation(self, apps):
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constraint = models.CheckConstraint(check=models.Q(id__gt=0), name='%(app_label)s_%(class)s_foo')
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class Model1(models.Model):
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class Meta:
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app_label = 'basic'
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constraints = [constraint]
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class Model2(models.Model):
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class Meta:
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app_label = 'check_framework'
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constraints = [constraint]
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self.assertEqual(checks.run_checks(app_configs=apps.get_app_configs()), [])
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def mocked_is_overridden(self, setting):
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# Force treating DEFAULT_AUTO_FIELD = 'django.db.models.AutoField' as a not
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# overridden setting.
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return (
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setting != 'DEFAULT_AUTO_FIELD' or
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self.DEFAULT_AUTO_FIELD != 'django.db.models.AutoField'
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)
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@mock.patch('django.conf.UserSettingsHolder.is_overridden', mocked_is_overridden)
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@override_settings(DEFAULT_AUTO_FIELD='django.db.models.AutoField')
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@isolate_apps('check_framework.apps.CheckDefaultPKConfig', attr_name='apps')
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@override_system_checks([checks.model_checks.check_all_models])
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class ModelDefaultAutoFieldTests(SimpleTestCase):
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msg = (
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"Auto-created primary key used when not defining a primary key type, "
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"by default 'django.db.models.AutoField'."
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)
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hint = (
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"Configure the DEFAULT_AUTO_FIELD setting or the "
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"CheckDefaultPKConfig.default_auto_field attribute to point to a "
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"subclass of AutoField, e.g. 'django.db.models.BigAutoField'."
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)
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def test_auto_created_pk(self):
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class Model(models.Model):
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pass
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Warning(self.msg, hint=self.hint, obj=Model, id='models.W042'),
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])
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def test_explicit_inherited_pk(self):
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class Parent(models.Model):
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id = models.AutoField(primary_key=True)
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class Child(Parent):
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pass
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [])
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def test_explicit_inherited_parent_link(self):
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class Parent(models.Model):
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id = models.AutoField(primary_key=True)
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class Child(Parent):
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parent_ptr = models.OneToOneField(Parent, models.CASCADE, parent_link=True)
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [])
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def test_auto_created_inherited_pk(self):
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class Parent(models.Model):
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pass
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class Child(Parent):
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pass
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Warning(self.msg, hint=self.hint, obj=Parent, id='models.W042'),
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])
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def test_auto_created_inherited_parent_link(self):
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class Parent(models.Model):
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pass
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class Child(Parent):
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parent_ptr = models.OneToOneField(Parent, models.CASCADE, parent_link=True)
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [
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Warning(self.msg, hint=self.hint, obj=Parent, id='models.W042'),
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])
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@override_settings(DEFAULT_AUTO_FIELD='django.db.models.BigAutoField')
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def test_default_auto_field_setting(self):
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class Model(models.Model):
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pass
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [])
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def test_explicit_pk(self):
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class Model(models.Model):
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id = models.BigAutoField(primary_key=True)
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self.assertEqual(checks.run_checks(app_configs=self.apps.get_app_configs()), [])
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@isolate_apps('check_framework.apps.CheckPKConfig', kwarg_name='apps')
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def test_app_default_auto_field(self, apps):
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class ModelWithPkViaAppConfig(models.Model):
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class Meta:
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app_label = 'check_framework.apps.CheckPKConfig'
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self.assertEqual(checks.run_checks(app_configs=apps.get_app_configs()), [])
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