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|
import sys
from io import StringIO
from django.apps import apps
from django.core import checks
from django.core.checks import Error, Warning
from django.core.checks.registry import CheckRegistry
from django.core.management import call_command
from django.core.management.base import CommandError
from django.db import models
from django.test import SimpleTestCase
from django.test.utils import (
isolate_apps, override_settings, override_system_checks,
)
from .models import SimpleModel, my_check
class DummyObj:
def __repr__(self):
return "obj"
class SystemCheckFrameworkTests(SimpleTestCase):
def test_register_and_run_checks(self):
def f(**kwargs):
calls[0] += 1
return [1, 2, 3]
def f2(**kwargs):
return [4]
def f3(**kwargs):
return [5]
calls = [0]
# test register as decorator
registry = CheckRegistry()
registry.register()(f)
registry.register("tag1", "tag2")(f2)
registry.register("tag2", deploy=True)(f3)
# test register as function
registry2 = CheckRegistry()
registry2.register(f)
registry2.register(f2, "tag1", "tag2")
registry2.register(f3, "tag2", deploy=True)
# check results
errors = registry.run_checks()
errors2 = registry2.run_checks()
self.assertEqual(errors, errors2)
self.assertEqual(sorted(errors), [1, 2, 3, 4])
self.assertEqual(calls[0], 2)
errors = registry.run_checks(tags=["tag1"])
errors2 = registry2.run_checks(tags=["tag1"])
self.assertEqual(errors, errors2)
self.assertEqual(sorted(errors), [4])
errors = registry.run_checks(tags=["tag1", "tag2"], include_deployment_checks=True)
errors2 = registry2.run_checks(tags=["tag1", "tag2"], include_deployment_checks=True)
self.assertEqual(errors, errors2)
self.assertEqual(sorted(errors), [4, 5])
def test_register_no_kwargs_error(self):
registry = CheckRegistry()
msg = 'Check functions must accept keyword arguments (**kwargs).'
with self.assertRaisesMessage(TypeError, msg):
@registry.register
def no_kwargs(app_configs, databases):
pass
class MessageTests(SimpleTestCase):
def test_printing(self):
e = Error("Message", hint="Hint", obj=DummyObj())
expected = "obj: Message\n\tHINT: Hint"
self.assertEqual(str(e), expected)
def test_printing_no_hint(self):
e = Error("Message", obj=DummyObj())
expected = "obj: Message"
self.assertEqual(str(e), expected)
def test_printing_no_object(self):
e = Error("Message", hint="Hint")
expected = "?: Message\n\tHINT: Hint"
self.assertEqual(str(e), expected)
def test_printing_with_given_id(self):
e = Error("Message", hint="Hint", obj=DummyObj(), id="ID")
expected = "obj: (ID) Message\n\tHINT: Hint"
self.assertEqual(str(e), expected)
def test_printing_field_error(self):
field = SimpleModel._meta.get_field('field')
e = Error("Error", obj=field)
expected = "check_framework.SimpleModel.field: Error"
self.assertEqual(str(e), expected)
def test_printing_model_error(self):
e = Error("Error", obj=SimpleModel)
expected = "check_framework.SimpleModel: Error"
self.assertEqual(str(e), expected)
def test_printing_manager_error(self):
manager = SimpleModel.manager
e = Error("Error", obj=manager)
expected = "check_framework.SimpleModel.manager: Error"
self.assertEqual(str(e), expected)
def test_equal_to_self(self):
e = Error("Error", obj=SimpleModel)
self.assertEqual(e, e)
def test_equal_to_same_constructed_check(self):
e1 = Error("Error", obj=SimpleModel)
e2 = Error("Error", obj=SimpleModel)
self.assertEqual(e1, e2)
def test_not_equal_to_different_constructed_check(self):
e1 = Error("Error", obj=SimpleModel)
e2 = Error("Error2", obj=SimpleModel)
self.assertNotEqual(e1, e2)
def test_not_equal_to_non_check(self):
e = Error("Error", obj=DummyObj())
self.assertNotEqual(e, 'a string')
def simple_system_check(**kwargs):
simple_system_check.kwargs = kwargs
return []
def tagged_system_check(**kwargs):
tagged_system_check.kwargs = kwargs
return [checks.Warning('System Check')]
tagged_system_check.tags = ['simpletag']
def deployment_system_check(**kwargs):
deployment_system_check.kwargs = kwargs
return [checks.Warning('Deployment Check')]
deployment_system_check.tags = ['deploymenttag']
class CheckCommandTests(SimpleTestCase):
def setUp(self):
simple_system_check.kwargs = None
tagged_system_check.kwargs = None
self.old_stdout, self.old_stderr = sys.stdout, sys.stderr
sys.stdout, sys.stderr = StringIO(), StringIO()
def tearDown(self):
sys.stdout, sys.stderr = self.old_stdout, self.old_stderr
@override_system_checks([simple_system_check, tagged_system_check])
def test_simple_call(self):
call_command('check')
self.assertEqual(simple_system_check.kwargs, {'app_configs': None, 'databases': None})
self.assertEqual(tagged_system_check.kwargs, {'app_configs': None, 'databases': None})
@override_system_checks([simple_system_check, tagged_system_check])
def test_given_app(self):
call_command('check', 'auth', 'admin')
auth_config = apps.get_app_config('auth')
admin_config = apps.get_app_config('admin')
self.assertEqual(simple_system_check.kwargs, {'app_configs': [auth_config, admin_config], 'databases': None})
self.assertEqual(tagged_system_check.kwargs, {'app_configs': [auth_config, admin_config], 'databases': None})
@override_system_checks([simple_system_check, tagged_system_check])
def test_given_tag(self):
call_command('check', tags=['simpletag'])
self.assertIsNone(simple_system_check.kwargs)
self.assertEqual(tagged_system_check.kwargs, {'app_configs': None, 'databases': None})
@override_system_checks([simple_system_check, tagged_system_check])
def test_invalid_tag(self):
msg = 'There is no system check with the "missingtag" tag.'
with self.assertRaisesMessage(CommandError, msg):
call_command('check', tags=['missingtag'])
@override_system_checks([simple_system_check])
def test_list_tags_empty(self):
call_command('check', list_tags=True)
self.assertEqual('\n', sys.stdout.getvalue())
@override_system_checks([tagged_system_check])
def test_list_tags(self):
call_command('check', list_tags=True)
self.assertEqual('simpletag\n', sys.stdout.getvalue())
@override_system_checks([tagged_system_check], deployment_checks=[deployment_system_check])
def test_list_deployment_check_omitted(self):
call_command('check', list_tags=True)
self.assertEqual('simpletag\n', sys.stdout.getvalue())
@override_system_checks([tagged_system_check], deployment_checks=[deployment_system_check])
def test_list_deployment_check_included(self):
call_command('check', deploy=True, list_tags=True)
self.assertEqual('deploymenttag\nsimpletag\n', sys.stdout.getvalue())
@override_system_checks([tagged_system_check], deployment_checks=[deployment_system_check])
def test_tags_deployment_check_omitted(self):
msg = 'There is no system check with the "deploymenttag" tag.'
with self.assertRaisesMessage(CommandError, msg):
call_command('check', tags=['deploymenttag'])
@override_system_checks([tagged_system_check], deployment_checks=[deployment_system_check])
def test_tags_deployment_check_included(self):
call_command('check', deploy=True, tags=['deploymenttag'])
self.assertIn('Deployment Check', sys.stderr.getvalue())
@override_system_checks([tagged_system_check])
def test_fail_level(self):
with self.assertRaises(CommandError):
call_command('check', fail_level='WARNING')
def custom_error_system_check(app_configs, **kwargs):
return [Error('Error', id='myerrorcheck.E001')]
def custom_warning_system_check(app_configs, **kwargs):
return [Warning('Warning', id='mywarningcheck.E001')]
class SilencingCheckTests(SimpleTestCase):
def setUp(self):
self.old_stdout, self.old_stderr = sys.stdout, sys.stderr
self.stdout, self.stderr = StringIO(), StringIO()
sys.stdout, sys.stderr = self.stdout, self.stderr
def tearDown(self):
sys.stdout, sys.stderr = self.old_stdout, self.old_stderr
@override_settings(SILENCED_SYSTEM_CHECKS=['myerrorcheck.E001'])
@override_system_checks([custom_error_system_check])
def test_silenced_error(self):
out = StringIO()
err = StringIO()
call_command('check', stdout=out, stderr=err)
self.assertEqual(out.getvalue(), 'System check identified no issues (1 silenced).\n')
self.assertEqual(err.getvalue(), '')
@override_settings(SILENCED_SYSTEM_CHECKS=['mywarningcheck.E001'])
@override_system_checks([custom_warning_system_check])
def test_silenced_warning(self):
out = StringIO()
err = StringIO()
call_command('check', stdout=out, stderr=err)
self.assertEqual(out.getvalue(), 'System check identified no issues (1 silenced).\n')
self.assertEqual(err.getvalue(), '')
class CheckFrameworkReservedNamesTests(SimpleTestCase):
@isolate_apps('check_framework', kwarg_name='apps')
@override_system_checks([checks.model_checks.check_all_models])
def test_model_check_method_not_shadowed(self, apps):
class ModelWithAttributeCalledCheck(models.Model):
check = 42
class ModelWithFieldCalledCheck(models.Model):
check = models.IntegerField()
class ModelWithRelatedManagerCalledCheck(models.Model):
pass
class ModelWithDescriptorCalledCheck(models.Model):
check = models.ForeignKey(ModelWithRelatedManagerCalledCheck, models.CASCADE)
article = models.ForeignKey(
ModelWithRelatedManagerCalledCheck,
models.CASCADE,
related_name='check',
)
errors = checks.run_checks(app_configs=apps.get_app_configs())
expected = [
Error(
"The 'ModelWithAttributeCalledCheck.check()' class method is "
"currently overridden by 42.",
obj=ModelWithAttributeCalledCheck,
id='models.E020'
),
Error(
"The 'ModelWithRelatedManagerCalledCheck.check()' class method is "
"currently overridden by %r." % ModelWithRelatedManagerCalledCheck.check,
obj=ModelWithRelatedManagerCalledCheck,
id='models.E020'
),
Error(
"The 'ModelWithDescriptorCalledCheck.check()' class method is "
"currently overridden by %r." % ModelWithDescriptorCalledCheck.check,
obj=ModelWithDescriptorCalledCheck,
id='models.E020'
),
]
self.assertEqual(errors, expected)
class ChecksRunDuringTests(SimpleTestCase):
def test_registered_check_did_run(self):
self.assertTrue(my_check.did_run)
|
