heat/heat/tests/test_provider_template.py

194 lines
8.0 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# 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 os
import yaml
from heat.common import urlfetch
from heat.engine import environment
from heat.engine import parser
from heat.engine import resource
from heat.engine.resources import template_resource
from heat.openstack.common import uuidutils
from heat.tests import generic_resource as generic_rsrc
from heat.tests.common import HeatTestCase
from heat.tests import utils
class MyCloudResource(generic_rsrc.GenericResource):
pass
class ProviderTemplateTest(HeatTestCase):
def setUp(self):
super(ProviderTemplateTest, self).setUp()
utils.setup_dummy_db()
resource._register_class('OS::ResourceType',
generic_rsrc.GenericResource)
resource._register_class('myCloud::ResourceType',
MyCloudResource)
def test_get_os_empty_registry(self):
# assertion: with an empty environment we get the correct
# default class.
env_str = {'resource_registry': {}}
env = environment.Environment(env_str)
cls = resource.get_class('OS::ResourceType', 'fred', env)
self.assertEqual(cls, generic_rsrc.GenericResource)
def test_get_mine_global_map(self):
# assertion: with a global rule we get the "mycloud" class.
env_str = {'resource_registry': {"OS::*": "myCloud::*"}}
env = environment.Environment(env_str)
cls = resource.get_class('OS::ResourceType', 'fred', env)
self.assertEqual(cls, MyCloudResource)
def test_get_mine_type_map(self):
# assertion: with a global rule we get the "mycloud" class.
env_str = {'resource_registry': {
"OS::ResourceType": "myCloud::ResourceType"}}
env = environment.Environment(env_str)
cls = resource.get_class('OS::ResourceType', 'fred', env)
self.assertEqual(cls, MyCloudResource)
def test_get_mine_resource_map(self):
# assertion: with a global rule we get the "mycloud" class.
env_str = {'resource_registry': {'resources': {'fred': {
"OS::ResourceType": "myCloud::ResourceType"}}}}
env = environment.Environment(env_str)
cls = resource.get_class('OS::ResourceType', 'fred', env)
self.assertEqual(cls, MyCloudResource)
def test_get_os_no_match(self):
# assertion: make sure 'fred' doesn't match 'jerry'.
env_str = {'resource_registry': {'resources': {'jerry': {
"OS::ResourceType": "myCloud::ResourceType"}}}}
env = environment.Environment(env_str)
cls = resource.get_class('OS::ResourceType', 'fred', env)
self.assertEqual(cls, generic_rsrc.GenericResource)
def test_to_parameters(self):
"""Tests property conversion to parameter values."""
utils.setup_dummy_db()
stack = parser.Stack(utils.dummy_context(), 'test_stack',
parser.Template({}),
stack_id=uuidutils.generate_uuid())
class DummyResource(object):
attributes_schema = {"Foo": "A test attribute"}
properties_schema = {
"Foo": {"Type": "String"},
"AList": {"Type": "List"},
"ANum": {"Type": "Number"},
"AMap": {"Type": "Map"}
}
map_prop_val = {
"key1": "val1",
"key2": ["lval1", "lval2", "lval3"],
"key3": {
"key4": 4,
"key5": False
}
}
json_snippet = {
"Type": "test_resource.template",
"Properties": {
"Foo": "Bar",
"AList": ["one", "two", "three"],
"ANum": 5,
"AMap": map_prop_val
}
}
self.m.StubOutWithMock(template_resource.resource, "get_class")
(template_resource.resource.get_class("test_resource.template")
.AndReturn(DummyResource))
self.m.ReplayAll()
temp_res = template_resource.TemplateResource('test_t_res',
json_snippet, stack)
self.m.VerifyAll()
converted_params = temp_res._to_parameters()
self.assertTrue(converted_params)
for key in DummyResource.properties_schema:
self.assertIn(key, converted_params)
# verify String conversion
self.assertEqual("Bar", converted_params.get("Foo"))
# verify List conversion
self.assertEqual(",".join(json_snippet.get("Properties",
{}).get("AList",
[])),
converted_params.get("AList"))
# verify Number conversion
self.assertEqual(5, converted_params.get("ANum"))
# verify Map conversion
self.assertEqual(map_prop_val, converted_params.get("AMap"))
def test_get_template_resource(self):
# assertion: if the name matches {.yaml|.template} we get the
# TemplateResource class.
env_str = {'resource_registry': {'resources': {'fred': {
"OS::ResourceType": "some_magic.yaml"}}}}
env = environment.Environment(env_str)
cls = resource.get_class('OS::ResourceType', 'fred', env)
self.assertEqual(cls, template_resource.TemplateResource)
def test_template_as_resource(self):
"""
Test that the resulting resource has the right prop and attrib schema.
Note that this test requires the Wordpress_Single_Instance.yaml
template in the templates directory since we want to test using a
non-trivial template.
"""
test_templ_name = "WordPress_Single_Instance.yaml"
path = os.path.join(os.path.dirname(os.path.realpath(__file__)),
'templates', test_templ_name)
# check if its in the directory list vs. exists to work around
# case-insensitive file systems
self.assertIn(test_templ_name, os.listdir(os.path.dirname(path)))
with open(path) as test_templ_file:
test_templ = test_templ_file.read()
self.assertTrue(test_templ, "Empty test template")
self.m.StubOutWithMock(urlfetch, "get")
urlfetch.get(test_templ_name).AndReturn(test_templ)
parsed_test_templ = yaml.safe_load(test_templ)
self.m.ReplayAll()
json_snippet = {
"Type": test_templ_name,
"Properties": {
"KeyName": "mykeyname",
"DBName": "wordpress1",
"DBUsername": "wpdbuser",
"DBPassword": "wpdbpass",
"DBRootPassword": "wpdbrootpass",
"LinuxDistribution": "U10"
}
}
stack = parser.Stack(None, 'test_stack', parser.Template({}),
stack_id=uuidutils.generate_uuid())
templ_resource = resource.Resource("test_templ_resource", json_snippet,
stack)
self.m.VerifyAll()
self.assertIsInstance(templ_resource,
template_resource.TemplateResource)
for prop in parsed_test_templ.get("Parameters", {}):
self.assertIn(prop, templ_resource.properties)
for attrib in parsed_test_templ.get("Outputs", {}):
self.assertIn(attrib, templ_resource.attributes)
for k, v in json_snippet.get("Properties").items():
self.assertEqual(v, templ_resource.properties[k])