deb-heat/heat/tests/test_environment_format.py
Angus Salkeld 08431c7c06 Add "parameter_defaults" to the environment
This give the user a way to set defaults recursively down nested stacks
without having to create the parameter in every template (it's ignored
if the template does not have the parameter).

blueprint env-nested-usability
Change-Id: Ie6b4481417204a527d322fd532c341b9acbce473
2014-12-15 09:44:11 +10:00

81 lines
2.5 KiB
Python

#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import mock
import yaml
from heat.common import environment_format
from heat.tests import common
class YamlEnvironmentTest(common.HeatTestCase):
def test_minimal_yaml(self):
yaml1 = ''
yaml2 = '''
parameters: {}
parameter_defaults: {}
resource_registry: {}
'''
tpl1 = environment_format.parse(yaml1)
environment_format.default_for_missing(tpl1)
tpl2 = environment_format.parse(yaml2)
self.assertEqual(tpl1, tpl2)
def test_wrong_sections(self):
env = '''
parameters: {}
resource_regis: {}
'''
self.assertRaises(ValueError, environment_format.parse, env)
def test_bad_yaml(self):
env = '''
parameters: }
'''
self.assertRaises(ValueError, environment_format.parse, env)
def test_yaml_none(self):
self.assertEqual({}, environment_format.parse(None))
def test_parse_string_environment(self):
env = 'just string'
expect = 'The environment is not a valid YAML mapping data type.'
msg = self.assertRaises(ValueError, environment_format.parse, env)
self.assertIn(expect, msg)
def test_parse_document(self):
env = '["foo" , "bar"]'
expect = 'The environment is not a valid YAML mapping data type.'
msg = self.assertRaises(ValueError, environment_format.parse, env)
self.assertIn(expect, msg)
class YamlParseExceptions(common.HeatTestCase):
scenarios = [
('scanner', dict(raised_exception=yaml.scanner.ScannerError())),
('parser', dict(raised_exception=yaml.parser.ParserError())),
('reader',
dict(raised_exception=yaml.reader.ReaderError('', '', '', '', ''))),
]
def test_parse_to_value_exception(self):
text = 'not important'
with mock.patch.object(yaml, 'load') as yaml_loader:
yaml_loader.side_effect = self.raised_exception
self.assertRaises(ValueError,
environment_format.parse, text)