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django/tests/user_commands/tests.py

506 lines
19 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
from django.utils import translation
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_raise_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)