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
diff --git a/functional/test_default_parameters.py b/functional/test_default_parameters.py
new file mode 100644
index 0000000..138a13e
--- /dev/null
+++ b/functional/test_default_parameters.py
@@ -0,0 +1,107 @@
+# 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 yaml
+
+from heat_integrationtests.common import test
+
+
+class DefaultParametersTest(test.HeatIntegrationTest):
+
+ template = '''
+heat_template_version: 2013-05-23
+parameters:
+ length:
+ type: string
+ default: 40
+resources:
+ random1:
+ type: nested_random.yaml
+ random2:
+ type: OS::Heat::RandomString
+ properties:
+ length: {get_param: length}
+outputs:
+ random1:
+ value: {get_attr: [random1, random1_value]}
+ random2:
+ value: {get_resource: random2}
+'''
+ nested_template = '''
+heat_template_version: 2013-05-23
+parameters:
+ length:
+ type: string
+ default: 50
+resources:
+ random1:
+ type: OS::Heat::RandomString
+ properties:
+ length: {get_param: length}
+outputs:
+ random1_value:
+ value: {get_resource: random1}
+'''
+
+ scenarios = [
+ ('none', dict(param=None, default=None, temp_def=True,
+ expect1=50, expect2=40)),
+ ('default', dict(param=None, default=12, temp_def=True,
+ expect1=12, expect2=12)),
+ ('both', dict(param=15, default=12, temp_def=True,
+ expect1=12, expect2=15)),
+ ('no_temp_default', dict(param=None, default=12, temp_def=False,
+ expect1=12, expect2=12)),
+ ]
+
+ def setUp(self):
+ super(DefaultParametersTest, self).setUp()
+ self.client = self.orchestration_client
+
+ def test_defaults(self):
+ stack_name = self._stack_rand_name()
+
+ env = {'parameters': {}, 'parameter_defaults': {}}
+ if self.param:
+ env['parameters'] = {'length': self.param}
+ if self.default:
+ env['parameter_defaults'] = {'length': self.default}
+
+ if not self.temp_def:
+ # remove the default from the parameter in the nested template.
+ ntempl = yaml.load(self.nested_template)
+ del ntempl['parameters']['length']['default']
+ nested_template = yaml.dump(ntempl)
+ else:
+ nested_template = self.nested_template
+
+ self.client.stacks.create(
+ stack_name=stack_name,
+ template=self.template,
+ files={'nested_random.yaml': nested_template},
+ disable_rollback=True,
+ parameters={},
+ environment=env
+ )
+ self.addCleanup(self.client.stacks.delete, stack_name)
+
+ stack = self.client.stacks.get(stack_name)
+ stack_identifier = '%s/%s' % (stack_name, stack.id)
+
+ self._wait_for_stack_status(stack_identifier, 'CREATE_COMPLETE')
+
+ stack = self.client.stacks.get(stack_name)
+ for out in stack.outputs:
+ if out['output_key'] == 'random1':
+ self.assertEqual(self.expect1, len(out['output_value']))
+ if out['output_key'] == 'random2':
+ self.assertEqual(self.expect2, len(out['output_value']))