django1/tests/migrations/test_questioner.py

86 lines
3.4 KiB
Python

import datetime
from io import StringIO
from unittest import mock
from django.core.management.base import OutputWrapper
from django.db.migrations.questioner import (
InteractiveMigrationQuestioner, MigrationQuestioner,
)
from django.db.models import NOT_PROVIDED
from django.test import SimpleTestCase
from django.test.utils import override_settings
class QuestionerTests(SimpleTestCase):
@override_settings(
INSTALLED_APPS=['migrations'],
MIGRATION_MODULES={'migrations': None},
)
def test_ask_initial_with_disabled_migrations(self):
questioner = MigrationQuestioner()
self.assertIs(False, questioner.ask_initial('migrations'))
def test_ask_not_null_alteration(self):
questioner = MigrationQuestioner()
self.assertIsNone(questioner.ask_not_null_alteration('field_name', 'model_name'))
@mock.patch('builtins.input', return_value='2')
def test_ask_not_null_alteration_not_provided(self, mock):
questioner = InteractiveMigrationQuestioner(prompt_output=OutputWrapper(StringIO()))
question = questioner.ask_not_null_alteration('field_name', 'model_name')
self.assertEqual(question, NOT_PROVIDED)
class QuestionerHelperMethodsTests(SimpleTestCase):
def setUp(self):
self.prompt = OutputWrapper(StringIO())
self.questioner = InteractiveMigrationQuestioner(prompt_output=self.prompt)
@mock.patch('builtins.input', return_value='datetime.timedelta(days=1)')
def test_questioner_default_timedelta(self, mock_input):
value = self.questioner._ask_default()
self.assertEqual(value, datetime.timedelta(days=1))
@mock.patch('builtins.input', return_value='')
def test_questioner_default_no_user_entry(self, mock_input):
value = self.questioner._ask_default(default='datetime.timedelta(days=1)')
self.assertEqual(value, datetime.timedelta(days=1))
@mock.patch('builtins.input', side_effect=['', 'exit'])
def test_questioner_no_default_no_user_entry(self, mock_input):
with self.assertRaises(SystemExit):
self.questioner._ask_default()
self.assertIn(
"Please enter some code, or 'exit' (without quotes) to exit.",
self.prompt.getvalue(),
)
@mock.patch('builtins.input', side_effect=['bad code', 'exit'])
def test_questioner_no_default_bad_user_entry_code(self, mock_input):
with self.assertRaises(SystemExit):
self.questioner._ask_default()
self.assertIn('Invalid input: ', self.prompt.getvalue())
@mock.patch('builtins.input', side_effect=['', 'n'])
def test_questioner_no_default_no_user_entry_boolean(self, mock_input):
value = self.questioner._boolean_input('Proceed?')
self.assertIs(value, False)
@mock.patch('builtins.input', return_value='')
def test_questioner_default_no_user_entry_boolean(self, mock_input):
value = self.questioner._boolean_input('Proceed?', default=True)
self.assertIs(value, True)
@mock.patch('builtins.input', side_effect=[10, 'garbage', 1])
def test_questioner_bad_user_choice(self, mock_input):
question = 'Make a choice:'
value = self.questioner._choice_input(question, choices='abc')
expected_msg = (
f'{question}\n'
f' 1) a\n'
f' 2) b\n'
f' 3) c\n'
)
self.assertIn(expected_msg, self.prompt.getvalue())
self.assertEqual(value, 1)