mirror of https://github.com/django/django.git
263 lines
11 KiB
Python
263 lines
11 KiB
Python
import os
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from io import StringIO
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from unittest import mock
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from admin_scripts.tests import AdminScriptTestCase
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from django.apps import apps
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from django.core import management
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from django.core.management import BaseCommand, CommandError, find_commands
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from django.core.management.utils import find_command, popen_wrapper
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from django.db import connection
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from django.test import SimpleTestCase, override_settings
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from django.test.utils import captured_stderr, extend_sys_path
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from django.utils import translation
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from .management.commands import dance
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# A minimal set of apps to avoid system checks running on all apps.
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@override_settings(
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INSTALLED_APPS=[
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'django.contrib.auth',
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'django.contrib.contenttypes',
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'user_commands',
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],
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)
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class CommandTests(SimpleTestCase):
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def test_command(self):
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out = StringIO()
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management.call_command('dance', stdout=out)
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self.assertIn("I don't feel like dancing Rock'n'Roll.\n", out.getvalue())
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def test_command_style(self):
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out = StringIO()
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management.call_command('dance', style='Jive', stdout=out)
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self.assertIn("I don't feel like dancing Jive.\n", out.getvalue())
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# Passing options as arguments also works (thanks argparse)
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management.call_command('dance', '--style', 'Jive', stdout=out)
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self.assertIn("I don't feel like dancing Jive.\n", out.getvalue())
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def test_language_preserved(self):
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out = StringIO()
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with translation.override('fr'):
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management.call_command('dance', stdout=out)
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self.assertEqual(translation.get_language(), 'fr')
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def test_explode(self):
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""" An unknown command raises CommandError """
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with self.assertRaisesMessage(CommandError, "Unknown command: 'explode'"):
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management.call_command(('explode',))
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def test_system_exit(self):
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""" Exception raised in a command should raise CommandError with
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call_command, but SystemExit when run from command line
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"""
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with self.assertRaises(CommandError):
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management.call_command('dance', example="raise")
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dance.Command.requires_system_checks = False
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try:
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with captured_stderr() as stderr, self.assertRaises(SystemExit):
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management.ManagementUtility(['manage.py', 'dance', '--example=raise']).execute()
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finally:
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dance.Command.requires_system_checks = True
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self.assertIn("CommandError", stderr.getvalue())
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def test_no_translations_deactivate_translations(self):
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"""
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When the Command handle method is decorated with @no_translations,
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translations are deactivated inside the command.
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"""
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current_locale = translation.get_language()
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with translation.override('pl'):
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result = management.call_command('no_translations', stdout=StringIO())
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self.assertIsNone(result)
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self.assertEqual(translation.get_language(), current_locale)
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def test_find_command_without_PATH(self):
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"""
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find_command should still work when the PATH environment variable
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doesn't exist (#22256).
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"""
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current_path = os.environ.pop('PATH', None)
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try:
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self.assertIsNone(find_command('_missing_'))
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finally:
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if current_path is not None:
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os.environ['PATH'] = current_path
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def test_discover_commands_in_eggs(self):
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"""
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Management commands can also be loaded from Python eggs.
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"""
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egg_dir = '%s/eggs' % os.path.dirname(__file__)
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egg_name = '%s/basic.egg' % egg_dir
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with extend_sys_path(egg_name):
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with self.settings(INSTALLED_APPS=['commandegg']):
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cmds = find_commands(os.path.join(apps.get_app_config('commandegg').path, 'management'))
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self.assertEqual(cmds, ['eggcommand'])
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def test_call_command_option_parsing(self):
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"""
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When passing the long option name to call_command, the available option
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key is the option dest name (#22985).
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"""
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out = StringIO()
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management.call_command('dance', stdout=out, opt_3=True)
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self.assertIn("option3", out.getvalue())
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self.assertNotIn("opt_3", out.getvalue())
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self.assertNotIn("opt-3", out.getvalue())
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def test_call_command_option_parsing_non_string_arg(self):
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"""
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It should be possible to pass non-string arguments to call_command.
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"""
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out = StringIO()
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management.call_command('dance', 1, verbosity=0, stdout=out)
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self.assertIn("You passed 1 as a positional argument.", out.getvalue())
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def test_calling_a_command_with_only_empty_parameter_should_ends_gracefully(self):
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out = StringIO()
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management.call_command('hal', "--empty", stdout=out)
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self.assertIn("Dave, I can't do that.\n", out.getvalue())
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def test_calling_command_with_app_labels_and_parameters_should_be_ok(self):
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out = StringIO()
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management.call_command('hal', 'myapp', "--verbosity", "3", stdout=out)
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self.assertIn("Dave, my mind is going. I can feel it. I can feel it.\n", out.getvalue())
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def test_calling_command_with_parameters_and_app_labels_at_the_end_should_be_ok(self):
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out = StringIO()
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management.call_command('hal', "--verbosity", "3", "myapp", stdout=out)
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self.assertIn("Dave, my mind is going. I can feel it. I can feel it.\n", out.getvalue())
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def test_calling_a_command_with_no_app_labels_and_parameters_should_raise_a_command_error(self):
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with self.assertRaises(CommandError):
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management.call_command('hal', stdout=StringIO())
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def test_output_transaction(self):
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output = management.call_command('transaction', stdout=StringIO(), no_color=True)
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self.assertTrue(output.strip().startswith(connection.ops.start_transaction_sql()))
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self.assertTrue(output.strip().endswith(connection.ops.end_transaction_sql()))
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def test_call_command_no_checks(self):
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"""
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By default, call_command should not trigger the check framework, unless
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specifically asked.
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"""
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self.counter = 0
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def patched_check(self_, **kwargs):
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self.counter += 1
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saved_check = BaseCommand.check
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BaseCommand.check = patched_check
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try:
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management.call_command("dance", verbosity=0)
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self.assertEqual(self.counter, 0)
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management.call_command("dance", verbosity=0, skip_checks=False)
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self.assertEqual(self.counter, 1)
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finally:
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BaseCommand.check = saved_check
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def test_check_migrations(self):
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requires_migrations_checks = dance.Command.requires_migrations_checks
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self.assertIs(requires_migrations_checks, False)
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try:
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with mock.patch.object(BaseCommand, 'check_migrations') as check_migrations:
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management.call_command('dance', verbosity=0)
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self.assertFalse(check_migrations.called)
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dance.Command.requires_migrations_checks = True
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management.call_command('dance', verbosity=0)
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self.assertTrue(check_migrations.called)
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finally:
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dance.Command.requires_migrations_checks = requires_migrations_checks
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def test_call_command_unrecognized_option(self):
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msg = (
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'Unknown option(s) for dance command: unrecognized. Valid options '
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'are: example, help, integer, no_color, opt_3, option3, '
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'pythonpath, settings, skip_checks, stderr, stdout, style, '
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'traceback, verbosity, version.'
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)
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with self.assertRaisesMessage(TypeError, msg):
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management.call_command('dance', unrecognized=1)
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msg = (
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'Unknown option(s) for dance command: unrecognized, unrecognized2. '
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'Valid options are: example, help, integer, no_color, opt_3, '
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'option3, pythonpath, settings, skip_checks, stderr, stdout, '
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'style, traceback, verbosity, version.'
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)
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with self.assertRaisesMessage(TypeError, msg):
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management.call_command('dance', unrecognized=1, unrecognized2=1)
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def test_call_command_with_required_parameters_in_options(self):
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out = StringIO()
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management.call_command('required_option', need_me='foo', needme2='bar', stdout=out)
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self.assertIn('need_me', out.getvalue())
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self.assertIn('needme2', out.getvalue())
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def test_call_command_with_required_parameters_in_mixed_options(self):
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out = StringIO()
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management.call_command('required_option', '--need-me=foo', needme2='bar', stdout=out)
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self.assertIn('need_me', out.getvalue())
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self.assertIn('needme2', out.getvalue())
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def test_command_add_arguments_after_common_arguments(self):
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out = StringIO()
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management.call_command('common_args', stdout=out)
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self.assertIn('Detected that --version already exists', out.getvalue())
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def test_subparser(self):
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out = StringIO()
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management.call_command('subparser', 'foo', 12, stdout=out)
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self.assertIn('bar', out.getvalue())
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def test_subparser_invalid_option(self):
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msg = "Error: invalid choice: 'test' (choose from 'foo')"
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with self.assertRaisesMessage(CommandError, msg):
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management.call_command('subparser', 'test', 12)
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def test_create_parser_kwargs(self):
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"""BaseCommand.create_parser() passes kwargs to CommandParser."""
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epilog = 'some epilog text'
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parser = BaseCommand().create_parser('prog_name', 'subcommand', epilog=epilog)
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self.assertEqual(parser.epilog, epilog)
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class CommandRunTests(AdminScriptTestCase):
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"""
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Tests that need to run by simulating the command line, not by call_command.
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"""
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def tearDown(self):
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self.remove_settings('settings.py')
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def test_script_prefix_set_in_commands(self):
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self.write_settings('settings.py', apps=['user_commands'], sdict={
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'ROOT_URLCONF': '"user_commands.urls"',
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'FORCE_SCRIPT_NAME': '"/PREFIX/"',
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})
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out, err = self.run_manage(['reverse_url'])
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self.assertNoOutput(err)
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self.assertEqual(out.strip(), '/PREFIX/some/url/')
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def test_disallowed_abbreviated_options(self):
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"""
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To avoid conflicts with custom options, commands don't allow
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abbreviated forms of the --setting and --pythonpath options.
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"""
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self.write_settings('settings.py', apps=['user_commands'])
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out, err = self.run_manage(['set_option', '--set', 'foo'])
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self.assertNoOutput(err)
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self.assertEqual(out.strip(), 'Set foo')
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class UtilsTests(SimpleTestCase):
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def test_no_existent_external_program(self):
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msg = 'Error executing a_42_command_that_doesnt_exist_42'
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with self.assertRaisesMessage(CommandError, msg):
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popen_wrapper(['a_42_command_that_doesnt_exist_42'])
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