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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.
import json
from heat.common import environment_util as env_util
from heat.common import exception
from heat.engine import parameters
from heat.tests import common
from heat.tests import utils
class TestEnvironmentUtil(common.HeatTestCase):
def test_empty_merge_strategies(self):
merge_strategies = {}
param_strategy = env_util.get_param_merge_strategy(merge_strategies,
'param1')
self.assertEqual(env_util.OVERWRITE, param_strategy)
def test_default_merge_strategy(self):
merge_strategies = {'default': 'deep_merge'}
param_strategy = env_util.get_param_merge_strategy(merge_strategies,
'param1')
self.assertEqual(env_util.DEEP_MERGE, param_strategy)
def test_param_sepcific_merge_strategy(self):
merge_strategies = {'default': 'merge',
'param1': 'deep_merge'}
param_strategy = env_util.get_param_merge_strategy(merge_strategies,
'param1')
self.assertEqual(env_util.DEEP_MERGE, param_strategy)
def test_wrong_param_strategy(self):
merge_strategies = {'default': 'merge',
'param1': 'unknown'}
param_strategy = env_util.get_param_merge_strategy(merge_strategies,
'param1')
self.assertEqual(env_util.MERGE, param_strategy)
def test_merge_startegies_none(self):
merge_strategies = None
param_strategy = env_util.get_param_merge_strategy(merge_strategies,
'param1')
self.assertEqual(env_util.OVERWRITE, param_strategy)
class TestMergeEnvironments(common.HeatTestCase):
def setUp(self):
super(TestMergeEnvironments, self).setUp()
self.ctx = utils.dummy_context(tenant_id='stack_service_test_tenant')
# Setup
self.params = {'parameters': {},
'resource_registry': {},
'parameter_defaults': {}}
self.env_1 = {'parameters': {
'str_value1': "string1",
'str_value2': "string2",
'del_lst_value1': '1,2',
'del_lst_value2': '3,4',
'lst_value1': [1, 2],
'json_value1': {"1": ["str1", "str2"]},
'json_value2': {"2": ["test1", "test2"]}},
'resource_registry': {
'test::R1': "OS::Heat::RandomString",
'test::R2': "BROKEN"},
'parameter_defaults': {
'lst_value2': [3, 4]}}
self.env_2 = {'parameters': {
'str_value1': "string3",
'str_value2': "string4",
'del_lst_value1': '5,6',
'del_lst_value2': '7,8',
'lst_value1': [5, 6],
'json_value1': {"3": ["str3", "str4"]},
'json_value2': {"4": ["test3", "test4"]}},
'resource_registry': {
'test::R2': "OS::Heat::None"},
'parameter_defaults': {
'lst_value2': [7, 8]}}
self.env_3 = {'parameters': {
'lst_value1': [9, 10],
'json_value1': {"5": ["str5"]}}}
self.env_4 = {'parameter_defaults': {
'lst_value2': [9, 10]}}
self.param_schemata = {
'str_value1': parameters.Schema(parameters.Schema.STRING),
'str_value2': parameters.Schema(parameters.Schema.STRING),
'del_lst_value1': parameters.Schema(parameters.Schema.LIST),
'del_lst_value2': parameters.Schema(parameters.Schema.LIST),
'lst_value1': parameters.Schema(parameters.Schema.LIST,
default=[7]),
'lst_value2': parameters.Schema(parameters.Schema.LIST),
'json_value1': parameters.Schema(parameters.Schema.MAP),
'json_value2': parameters.Schema(parameters.Schema.MAP)}
def test_merge_envs_with_param_default_merge_strategy(self):
files = {'env_1': json.dumps(self.env_1),
'env_2': json.dumps(self.env_2)}
environment_files = ['env_1', 'env_2']
# Test
env_util.merge_environments(environment_files, files, self.params,
self.param_schemata)
# Verify
expected = {'parameters': {
'json_value1': {u'3': [u'str3', u'str4']},
'json_value2': {u'4': [u'test3', u'test4']},
'del_lst_value1': '5,6',
'del_lst_value2': '7,8',
'lst_value1': [5, 6],
'str_value1': u'string3',
'str_value2': u'string4'},
'resource_registry': {
'test::R1': "OS::Heat::RandomString",
'test::R2': "OS::Heat::None"},
'parameter_defaults': {
'lst_value2': [7, 8]}}
self.assertEqual(expected, self.params)
def test_merge_envs_with_specified_default(self):
merge_strategies = {'default': 'deep_merge'}
self.env_1['parameter_merge_strategies'] = merge_strategies
files = {'env_1': json.dumps(self.env_1),
'env_2': json.dumps(self.env_2)}
environment_files = ['env_1', 'env_2']
# Test
env_util.merge_environments(environment_files, files, self.params,
self.param_schemata)
# Verify
expected = {'parameters': {
'json_value1': {u'3': [u'str3', u'str4'],
u'1': [u'str1', u'str2']}, # added
'json_value2': {u'4': [u'test3', u'test4'],
u'2': [u'test1', u'test2']},
'del_lst_value1': '1,2,5,6',
'del_lst_value2': '3,4,7,8',
'lst_value1': [1, 2, 5, 6], # added
'str_value1': u'string1string3',
'str_value2': u'string2string4'},
'resource_registry': {
'test::R1': "OS::Heat::RandomString",
'test::R2': "OS::Heat::None"},
'parameter_defaults': {
'lst_value2': [3, 4, 7, 8]}}
self.assertEqual(expected, self.params)
def test_merge_envs_with_param_specific_merge_strategy(self):
merge_strategies = {
'default': 'overwrite',
'lst_value1': 'merge',
'lst_value2': 'merge',
'json_value1': 'deep_merge'}
self.env_1['parameter_merge_strategies'] = merge_strategies
files = {'env_1': json.dumps(self.env_1),
'env_2': json.dumps(self.env_2)}
environment_files = ['env_1', 'env_2']
# Test
env_util.merge_environments(environment_files, files, self.params,
self.param_schemata)
# Verify
expected = {'parameters': {
'json_value1': {u'3': [u'str3', u'str4'],
u'1': [u'str1', u'str2']}, # added
'json_value2': {u'4': [u'test3', u'test4']},
'del_lst_value1': '5,6',
'del_lst_value2': '7,8',
'lst_value1': [1, 2, 5, 6], # added
'str_value1': u'string3',
'str_value2': u'string4'},
'resource_registry': {
'test::R1': 'OS::Heat::RandomString',
'test::R2': 'OS::Heat::None'},
'parameter_defaults': {
'lst_value2': [3, 4, 7, 8]}}
self.assertEqual(expected, self.params)
def test_merge_envs_with_param_conflicting_merge_strategy(self):
merge_strategies = {
'default': "overwrite",
'lst_value1': "merge",
'json_value1': "deep_merge"}
env3_merge_strategies = {
'default': "overwrite",
'lst_value1': "deep_merge",
'json_value1': "merge"}
self.env_1['parameter_merge_strategies'] = merge_strategies
self.env_3['parameter_merge_strategies'] = env3_merge_strategies
files = {'env_1': json.dumps(self.env_1),
'env_2': json.dumps(self.env_2),
'env_3': json.dumps(self.env_3)}
environment_files = ['env_1', 'env_2', 'env_3']
# Test
self.assertRaises(exception.ConflictingMergeStrategyForParam,
env_util.merge_environments,
environment_files, files,
self.params, self.param_schemata)
def test_merge_envs_with_param_defaults_conflicting_merge_strategy(self):
merge_strategies = {
'default': "overwrite",
'lst_value2': "merge"}
env4_merge_strategies = {
'default': "overwrite",
'lst_value2': "overwrite"}
self.env_1['parameter_merge_strategies'] = merge_strategies
self.env_4['parameter_merge_strategies'] = env4_merge_strategies
files = {'env_1': json.dumps(self.env_1),
'env_2': json.dumps(self.env_2),
'env_4': json.dumps(self.env_4)}
environment_files = ['env_1', 'env_2', 'env_4']
# Test
self.assertRaises(exception.ConflictingMergeStrategyForParam,
env_util.merge_environments,
environment_files, files,
self.params, self.param_schemata)
def test_merge_environments_no_env_files(self):
files = {'env_1': json.dumps(self.env_1)}
# Test - Should ignore env_1 in files
env_util.merge_environments(None, files, self.params,
self.param_schemata)
# Verify
expected = {'parameters': {},
'resource_registry': {},
'parameter_defaults': {}}
self.assertEqual(expected, self.params)
def test_merge_envs_with_zeros(self):
env1 = {'parameter_defaults': {'value1': 1}}
env2 = {'parameter_defaults': {'value1': 0}}
files = {'env_1': json.dumps(env1),
'env_2': json.dumps(env2)}
environment_files = ['env_1', 'env_2']
param_schemata = {
'value1': parameters.Schema(parameters.Schema.NUMBER)}
env_util.merge_environments(environment_files, files, self.params,
param_schemata)
self.assertEqual({'value1': 0}, self.params['parameter_defaults'])
def test_merge_envs_with_zeros_in_maps(self):
env1 = {'parameter_defaults': {'value1': {'foo': 1}},
'parameter_merge_strategies': {'value1': 'deep_merge'}}
env2 = {'parameter_defaults': {'value1': {'foo': 0}}}
files = {'env_1': json.dumps(env1),
'env_2': json.dumps(env2)}
environment_files = ['env_1', 'env_2']
param_schemata = {
'value1': parameters.Schema(parameters.Schema.MAP)}
env_util.merge_environments(environment_files, files, self.params,
param_schemata)
self.assertEqual({'value1': {'foo': 0}},
self.params['parameter_defaults'])
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