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community.general/test/units/module_utils/basic/test_argument_spec.py
Matt Davis 3f1ec6b862 add custom module type validation (#27183)
* Module argument_spec now accepts a callable for the type argument, which is passed through and called with the value when appropriate. On validation/conversion failure, the name of the callable (or its type as a fallback) is used in the error message.
* adds basic smoke tests for custom callable validator functionality
2017-07-26 16:12:50 -07:00

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1.8 KiB
Python

# Copyright (c) 2017 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import (absolute_import, division)
__metaclass__ = type
import json
from ansible.compat.tests import unittest
from ansible.compat.tests.mock import MagicMock
from units.mock.procenv import swap_stdin_and_argv, swap_stdout
from ansible.module_utils import basic
class TestCallableTypeValidation(unittest.TestCase):
def setUp(self):
args = json.dumps(dict(ANSIBLE_MODULE_ARGS=dict(arg="42")))
self.stdin_swap_ctx = swap_stdin_and_argv(stdin_data=args)
self.stdin_swap_ctx.__enter__()
# since we can't use context managers and "with" without overriding run(), call them directly
self.stdout_swap_ctx = swap_stdout()
self.fake_stream = self.stdout_swap_ctx.__enter__()
basic._ANSIBLE_ARGS = None
def tearDown(self):
# since we can't use context managers and "with" without overriding run(), call them directly to clean up
self.stdin_swap_ctx.__exit__(None, None, None)
self.stdout_swap_ctx.__exit__(None, None, None)
def test_validate_success(self):
mock_validator = MagicMock(return_value=42)
m = basic.AnsibleModule(argument_spec=dict(
arg=dict(type=mock_validator)
))
self.assertTrue(mock_validator.called)
self.assertEqual(m.params['arg'], 42)
self.assertEqual(type(m.params['arg']), int)
def test_validate_fail(self):
mock_validator = MagicMock(side_effect=TypeError("bad conversion"))
with self.assertRaises(SystemExit) as ecm:
m = basic.AnsibleModule(argument_spec=dict(
arg=dict(type=mock_validator)
))
self.assertIn("bad conversion", json.loads(self.fake_stream.getvalue())['msg'])