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			196 lines
		
	
	
	
		
			7.9 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			196 lines
		
	
	
	
		
			7.9 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import os
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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, mock, 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 django.utils._os import upath
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from django.utils.six import StringIO
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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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        """ Test that an unknown command raises CommandError """
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        with self.assertRaises(CommandError):
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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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        with captured_stderr() as stderr, self.assertRaises(SystemExit):
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            management.ManagementUtility(['manage.py', 'dance', '--example=raise']).execute()
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        self.assertIn("CommandError", stderr.getvalue())
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    def test_deactivate_locale_set(self):
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        # Deactivate translation when set to true
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        with translation.override('pl'):
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            result = management.call_command('leave_locale_alone_false', stdout=StringIO())
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            self.assertIsNone(result)
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    def test_configured_locale_preserved(self):
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        # Leaves locale from settings when set to false
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        with translation.override('pl'):
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            result = management.call_command('leave_locale_alone_true', stdout=StringIO())
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            self.assertEqual(result, "pl")
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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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        Test that management commands can also be loaded from Python eggs.
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        """
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        egg_dir = '%s/eggs' % os.path.dirname(upath(__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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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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class UtilsTests(SimpleTestCase):
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    def test_no_existent_external_program(self):
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        with self.assertRaises(CommandError):
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            popen_wrapper(['a_42_command_that_doesnt_exist_42'])
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