django1/tests/user_commands/tests.py

502 lines
20 KiB
Python

import os
from io import StringIO
from unittest import mock
from admin_scripts.tests import AdminScriptTestCase
from django.apps import apps
from django.core import management
from django.core.checks import Tags
from django.core.management import BaseCommand, CommandError, find_commands
from django.core.management.utils import (
find_command, get_random_secret_key, is_ignored_path,
normalize_path_patterns, popen_wrapper,
)
from django.db import connection
from django.test import SimpleTestCase, override_settings
from django.test.utils import captured_stderr, extend_sys_path, ignore_warnings
from django.utils import translation
from django.utils.deprecation import RemovedInDjango41Warning
from .management.commands import dance
# A minimal set of apps to avoid system checks running on all apps.
@override_settings(
INSTALLED_APPS=[
'django.contrib.auth',
'django.contrib.contenttypes',
'user_commands',
],
)
class CommandTests(SimpleTestCase):
def test_command(self):
out = StringIO()
management.call_command('dance', stdout=out)
self.assertIn("I don't feel like dancing Rock'n'Roll.\n", out.getvalue())
def test_command_style(self):
out = StringIO()
management.call_command('dance', style='Jive', stdout=out)
self.assertIn("I don't feel like dancing Jive.\n", out.getvalue())
# Passing options as arguments also works (thanks argparse)
management.call_command('dance', '--style', 'Jive', stdout=out)
self.assertIn("I don't feel like dancing Jive.\n", out.getvalue())
def test_language_preserved(self):
with translation.override('fr'):
management.call_command('dance', verbosity=0)
self.assertEqual(translation.get_language(), 'fr')
def test_explode(self):
""" An unknown command raises CommandError """
with self.assertRaisesMessage(CommandError, "Unknown command: 'explode'"):
management.call_command(('explode',))
def test_system_exit(self):
""" Exception raised in a command should raise CommandError with
call_command, but SystemExit when run from command line
"""
with self.assertRaises(CommandError) as cm:
management.call_command('dance', example="raise")
self.assertEqual(cm.exception.returncode, 3)
dance.Command.requires_system_checks = []
try:
with captured_stderr() as stderr, self.assertRaises(SystemExit) as cm:
management.ManagementUtility(['manage.py', 'dance', '--example=raise']).execute()
self.assertEqual(cm.exception.code, 3)
finally:
dance.Command.requires_system_checks = '__all__'
self.assertIn("CommandError", stderr.getvalue())
def test_no_translations_deactivate_translations(self):
"""
When the Command handle method is decorated with @no_translations,
translations are deactivated inside the command.
"""
current_locale = translation.get_language()
with translation.override('pl'):
result = management.call_command('no_translations')
self.assertIsNone(result)
self.assertEqual(translation.get_language(), current_locale)
def test_find_command_without_PATH(self):
"""
find_command should still work when the PATH environment variable
doesn't exist (#22256).
"""
current_path = os.environ.pop('PATH', None)
try:
self.assertIsNone(find_command('_missing_'))
finally:
if current_path is not None:
os.environ['PATH'] = current_path
def test_discover_commands_in_eggs(self):
"""
Management commands can also be loaded from Python eggs.
"""
egg_dir = '%s/eggs' % os.path.dirname(__file__)
egg_name = '%s/basic.egg' % egg_dir
with extend_sys_path(egg_name):
with self.settings(INSTALLED_APPS=['commandegg']):
cmds = find_commands(os.path.join(apps.get_app_config('commandegg').path, 'management'))
self.assertEqual(cmds, ['eggcommand'])
def test_call_command_option_parsing(self):
"""
When passing the long option name to call_command, the available option
key is the option dest name (#22985).
"""
out = StringIO()
management.call_command('dance', stdout=out, opt_3=True)
self.assertIn("option3", out.getvalue())
self.assertNotIn("opt_3", out.getvalue())
self.assertNotIn("opt-3", out.getvalue())
def test_call_command_option_parsing_non_string_arg(self):
"""
It should be possible to pass non-string arguments to call_command.
"""
out = StringIO()
management.call_command('dance', 1, verbosity=0, stdout=out)
self.assertIn("You passed 1 as a positional argument.", out.getvalue())
def test_calling_a_command_with_only_empty_parameter_should_ends_gracefully(self):
out = StringIO()
management.call_command('hal', "--empty", stdout=out)
self.assertEqual(out.getvalue(), "\nDave, I can't do that.\n")
def test_calling_command_with_app_labels_and_parameters_should_be_ok(self):
out = StringIO()
management.call_command('hal', 'myapp', "--verbosity", "3", stdout=out)
self.assertIn("Dave, my mind is going. I can feel it. I can feel it.\n", out.getvalue())
def test_calling_command_with_parameters_and_app_labels_at_the_end_should_be_ok(self):
out = StringIO()
management.call_command('hal', "--verbosity", "3", "myapp", stdout=out)
self.assertIn("Dave, my mind is going. I can feel it. I can feel it.\n", out.getvalue())
def test_calling_a_command_with_no_app_labels_and_parameters_should_raise_a_command_error(self):
with self.assertRaises(CommandError):
management.call_command('hal')
def test_output_transaction(self):
output = management.call_command('transaction', stdout=StringIO(), no_color=True)
self.assertTrue(output.strip().startswith(connection.ops.start_transaction_sql()))
self.assertTrue(output.strip().endswith(connection.ops.end_transaction_sql()))
def test_call_command_no_checks(self):
"""
By default, call_command should not trigger the check framework, unless
specifically asked.
"""
self.counter = 0
def patched_check(self_, **kwargs):
self.counter += 1
self.kwargs = kwargs
saved_check = BaseCommand.check
BaseCommand.check = patched_check
try:
management.call_command("dance", verbosity=0)
self.assertEqual(self.counter, 0)
management.call_command("dance", verbosity=0, skip_checks=False)
self.assertEqual(self.counter, 1)
self.assertEqual(self.kwargs, {})
finally:
BaseCommand.check = saved_check
def test_requires_system_checks_empty(self):
with mock.patch('django.core.management.base.BaseCommand.check') as mocked_check:
management.call_command('no_system_checks')
self.assertIs(mocked_check.called, False)
def test_requires_system_checks_specific(self):
with mock.patch('django.core.management.base.BaseCommand.check') as mocked_check:
management.call_command('specific_system_checks')
mocked_check.called_once_with(tags=[Tags.staticfiles, Tags.models])
def test_requires_system_checks_invalid(self):
class Command(BaseCommand):
requires_system_checks = 'x'
msg = 'requires_system_checks must be a list or tuple.'
with self.assertRaisesMessage(TypeError, msg):
Command()
def test_check_migrations(self):
requires_migrations_checks = dance.Command.requires_migrations_checks
self.assertIs(requires_migrations_checks, False)
try:
with mock.patch.object(BaseCommand, 'check_migrations') as check_migrations:
management.call_command('dance', verbosity=0)
self.assertFalse(check_migrations.called)
dance.Command.requires_migrations_checks = True
management.call_command('dance', verbosity=0)
self.assertTrue(check_migrations.called)
finally:
dance.Command.requires_migrations_checks = requires_migrations_checks
def test_call_command_unrecognized_option(self):
msg = (
'Unknown option(s) for dance command: unrecognized. Valid options '
'are: example, force_color, help, integer, no_color, opt_3, '
'option3, pythonpath, settings, skip_checks, stderr, stdout, '
'style, traceback, verbosity, version.'
)
with self.assertRaisesMessage(TypeError, msg):
management.call_command('dance', unrecognized=1)
msg = (
'Unknown option(s) for dance command: unrecognized, unrecognized2. '
'Valid options are: example, force_color, help, integer, no_color, '
'opt_3, option3, pythonpath, settings, skip_checks, stderr, '
'stdout, style, traceback, verbosity, version.'
)
with self.assertRaisesMessage(TypeError, msg):
management.call_command('dance', unrecognized=1, unrecognized2=1)
def test_call_command_with_required_parameters_in_options(self):
out = StringIO()
management.call_command('required_option', need_me='foo', needme2='bar', stdout=out)
self.assertIn('need_me', out.getvalue())
self.assertIn('needme2', out.getvalue())
def test_call_command_with_required_parameters_in_mixed_options(self):
out = StringIO()
management.call_command('required_option', '--need-me=foo', needme2='bar', stdout=out)
self.assertIn('need_me', out.getvalue())
self.assertIn('needme2', out.getvalue())
def test_command_add_arguments_after_common_arguments(self):
out = StringIO()
management.call_command('common_args', stdout=out)
self.assertIn('Detected that --version already exists', out.getvalue())
def test_mutually_exclusive_group_required_options(self):
out = StringIO()
management.call_command('mutually_exclusive_required', foo_id=1, stdout=out)
self.assertIn('foo_id', out.getvalue())
management.call_command('mutually_exclusive_required', foo_name='foo', stdout=out)
self.assertIn('foo_name', out.getvalue())
msg = (
'Error: one of the arguments --foo-id --foo-name --foo-list '
'--append_const --const --count --flag_false --flag_true is '
'required'
)
with self.assertRaisesMessage(CommandError, msg):
management.call_command('mutually_exclusive_required', stdout=out)
def test_mutually_exclusive_group_required_const_options(self):
tests = [
('append_const', [42]),
('const', 31),
('count', 1),
('flag_false', False),
('flag_true', True),
]
for arg, value in tests:
out = StringIO()
expected_output = '%s=%s' % (arg, value)
with self.subTest(arg=arg):
management.call_command(
'mutually_exclusive_required',
'--%s' % arg,
stdout=out,
)
self.assertIn(expected_output, out.getvalue())
out.truncate(0)
management.call_command(
'mutually_exclusive_required',
**{arg: value, 'stdout': out},
)
self.assertIn(expected_output, out.getvalue())
def test_mutually_exclusive_group_required_with_same_dest_options(self):
tests = [
{'until': '2'},
{'for': '1', 'until': '2'},
]
msg = (
"Cannot pass the dest 'until' that matches multiple arguments via "
"**options."
)
for options in tests:
with self.subTest(options=options):
with self.assertRaisesMessage(TypeError, msg):
management.call_command(
'mutually_exclusive_required_with_same_dest',
**options,
)
def test_mutually_exclusive_group_required_with_same_dest_args(self):
tests = [
('--until=1',),
('--until', 1),
('--for=1',),
('--for', 1),
]
for args in tests:
out = StringIO()
with self.subTest(options=args):
management.call_command(
'mutually_exclusive_required_with_same_dest',
*args,
stdout=out,
)
output = out.getvalue()
self.assertIn('until=1', output)
def test_required_list_option(self):
tests = [
(('--foo-list', [1, 2]), {}),
((), {'foo_list': [1, 2]}),
]
for command in ['mutually_exclusive_required', 'required_list_option']:
for args, kwargs in tests:
with self.subTest(command=command, args=args, kwargs=kwargs):
out = StringIO()
management.call_command(
command,
*args,
**{**kwargs, 'stdout': out},
)
self.assertIn('foo_list=[1, 2]', out.getvalue())
def test_required_const_options(self):
args = {
'append_const': [42],
'const': 31,
'count': 1,
'flag_false': False,
'flag_true': True,
}
expected_output = '\n'.join(
'%s=%s' % (arg, value) for arg, value in args.items()
)
out = StringIO()
management.call_command(
'required_constant_option',
'--append_const',
'--const',
'--count',
'--flag_false',
'--flag_true',
stdout=out,
)
self.assertIn(expected_output, out.getvalue())
out.truncate(0)
management.call_command('required_constant_option', **{**args, 'stdout': out})
self.assertIn(expected_output, out.getvalue())
def test_subparser(self):
out = StringIO()
management.call_command('subparser', 'foo', 12, stdout=out)
self.assertIn('bar', out.getvalue())
def test_subparser_dest_args(self):
out = StringIO()
management.call_command('subparser_dest', 'foo', bar=12, stdout=out)
self.assertIn('bar', out.getvalue())
def test_subparser_dest_required_args(self):
out = StringIO()
management.call_command('subparser_required', 'foo_1', 'foo_2', bar=12, stdout=out)
self.assertIn('bar', out.getvalue())
def test_subparser_invalid_option(self):
msg = "invalid choice: 'test' (choose from 'foo')"
with self.assertRaisesMessage(CommandError, msg):
management.call_command('subparser', 'test', 12)
msg = 'Error: the following arguments are required: subcommand'
with self.assertRaisesMessage(CommandError, msg):
management.call_command('subparser_dest', subcommand='foo', bar=12)
def test_create_parser_kwargs(self):
"""BaseCommand.create_parser() passes kwargs to CommandParser."""
epilog = 'some epilog text'
parser = BaseCommand().create_parser('prog_name', 'subcommand', epilog=epilog)
self.assertEqual(parser.epilog, epilog)
def test_outputwrapper_flush(self):
out = StringIO()
with mock.patch.object(out, 'flush') as mocked_flush:
management.call_command('outputwrapper', stdout=out)
self.assertIn('Working...', out.getvalue())
self.assertIs(mocked_flush.called, True)
class CommandRunTests(AdminScriptTestCase):
"""
Tests that need to run by simulating the command line, not by call_command.
"""
def test_script_prefix_set_in_commands(self):
self.write_settings('settings.py', apps=['user_commands'], sdict={
'ROOT_URLCONF': '"user_commands.urls"',
'FORCE_SCRIPT_NAME': '"/PREFIX/"',
})
out, err = self.run_manage(['reverse_url'])
self.assertNoOutput(err)
self.assertEqual(out.strip(), '/PREFIX/some/url/')
def test_disallowed_abbreviated_options(self):
"""
To avoid conflicts with custom options, commands don't allow
abbreviated forms of the --setting and --pythonpath options.
"""
self.write_settings('settings.py', apps=['user_commands'])
out, err = self.run_manage(['set_option', '--set', 'foo'])
self.assertNoOutput(err)
self.assertEqual(out.strip(), 'Set foo')
def test_skip_checks(self):
self.write_settings('settings.py', apps=['django.contrib.staticfiles', 'user_commands'], sdict={
# (staticfiles.E001) The STATICFILES_DIRS setting is not a tuple or
# list.
'STATICFILES_DIRS': '"foo"',
})
out, err = self.run_manage(['set_option', '--skip-checks', '--set', 'foo'])
self.assertNoOutput(err)
self.assertEqual(out.strip(), 'Set foo')
class UtilsTests(SimpleTestCase):
def test_no_existent_external_program(self):
msg = 'Error executing a_42_command_that_doesnt_exist_42'
with self.assertRaisesMessage(CommandError, msg):
popen_wrapper(['a_42_command_that_doesnt_exist_42'])
def test_get_random_secret_key(self):
key = get_random_secret_key()
self.assertEqual(len(key), 50)
for char in key:
self.assertIn(char, 'abcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*(-_=+)')
def test_is_ignored_path_true(self):
patterns = (
['foo/bar/baz'],
['baz'],
['foo/bar/baz'],
['*/baz'],
['*'],
['b?z'],
['[abc]az'],
['*/ba[!z]/baz'],
)
for ignore_patterns in patterns:
with self.subTest(ignore_patterns=ignore_patterns):
self.assertIs(is_ignored_path('foo/bar/baz', ignore_patterns=ignore_patterns), True)
def test_is_ignored_path_false(self):
self.assertIs(is_ignored_path('foo/bar/baz', ignore_patterns=['foo/bar/bat', 'bar', 'flub/blub']), False)
def test_normalize_path_patterns_truncates_wildcard_base(self):
expected = [os.path.normcase(p) for p in ['foo/bar', 'bar/*/']]
self.assertEqual(normalize_path_patterns(['foo/bar/*', 'bar/*/']), expected)
class DeprecationTests(SimpleTestCase):
def test_requires_system_checks_warning(self):
class Command(BaseCommand):
pass
msg = (
"Using a boolean value for requires_system_checks is deprecated. "
"Use '__all__' instead of True, and [] (an empty list) instead of "
"False."
)
for value in [False, True]:
Command.requires_system_checks = value
with self.assertRaisesMessage(RemovedInDjango41Warning, msg):
Command()
@ignore_warnings(category=RemovedInDjango41Warning)
def test_requires_system_checks_true(self):
class Command(BaseCommand):
requires_system_checks = True
def handle(self, *args, **options):
pass
command = Command()
with mock.patch('django.core.management.base.BaseCommand.check') as mocked_check:
management.call_command(command, skip_checks=False)
mocked_check.assert_called_once_with()
@ignore_warnings(category=RemovedInDjango41Warning)
def test_requires_system_checks_false(self):
class Command(BaseCommand):
requires_system_checks = False
def handle(self, *args, **options):
pass
command = Command()
with mock.patch('django.core.management.base.BaseCommand.check') as mocked_check:
management.call_command(command)
self.assertIs(mocked_check.called, False)