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# 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.
from unittest import mock
import six
import testscenarios
import testtools
import yaml
from heatclient.common import environment_format
load_tests = testscenarios.load_tests_apply_scenarios
class YamlEnvironmentTest(testtools.TestCase):
def test_minimal_yaml(self):
yaml1 = ''
yaml2 = '''
parameter_defaults: {}
encrypted_param_names: []
parameters: {}
resource_registry: {}
event_sinks: []
'''
tpl1 = environment_format.parse(yaml1)
environment_format.default_for_missing(tpl1)
tpl2 = environment_format.parse(yaml2)
self.assertEqual(tpl2, tpl1)
def test_param_valid_strategy_section(self):
yaml1 = ''
yaml2 = '''
parameters: {}
encrypted_param_names: []
parameter_defaults: {}
parameter_merge_strategies: {}
event_sinks: []
resource_registry: {}
'''
tpl1 = environment_format.parse(yaml1)
environment_format.default_for_missing(tpl1)
tpl2 = environment_format.parse(yaml2)
self.assertNotEqual(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_parse_string_environment(self):
env = 'just string'
expect = 'The environment is not a valid YAML mapping data type.'
e = self.assertRaises(ValueError, environment_format.parse, env)
self.assertIn(expect, str(e))
def test_parse_document(self):
env = '["foo", "bar"]'
expect = 'The environment is not a valid YAML mapping data type.'
e = self.assertRaises(ValueError, environment_format.parse, env)
self.assertIn(expect, str(e))
class YamlParseExceptions(testtools.TestCase):
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)
class DetailedYAMLParseExceptions(testtools.TestCase):
def test_parse_to_value_exception(self):
yaml = """not important
but very:
- incorrect
"""
ex = self.assertRaises(ValueError, environment_format.parse, yaml)
self.assertIn('but very:\n ^', six.text_type(ex))
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