f79e6d502c
Now that stack_resource validate recursively we don't need to actually create the stack in order to test for limit checking. part of blueprint decouple-nested Change-Id: I4c9c87e064eef3b058dd63b88f521c4895eea670
385 lines
12 KiB
Python
385 lines
12 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import mock
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from requests import exceptions
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import six
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import yaml
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from heat.common import exception
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from heat.common import template_format
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from heat.common import urlfetch
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from heat.db import api as db_api
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from heat.engine import parser
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from heat.engine import resource
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from heat.engine.resources import stack as stack_res
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from heat.engine import rsrc_defn
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from heat.tests import common
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from heat.tests import generic_resource as generic_rsrc
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from heat.tests import utils
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class NestedStackTest(common.HeatTestCase):
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test_template = '''
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HeatTemplateFormatVersion: '2012-12-12'
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Resources:
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the_nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: https://server.test/the.template
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Parameters:
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KeyName: foo
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'''
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nested_template = '''
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HeatTemplateFormatVersion: '2012-12-12'
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Parameters:
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KeyName:
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Type: String
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Outputs:
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Foo:
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Value: bar
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'''
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update_template = '''
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HeatTemplateFormatVersion: '2012-12-12'
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Parameters:
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KeyName:
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Type: String
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Outputs:
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Bar:
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Value: foo
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'''
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def setUp(self):
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super(NestedStackTest, self).setUp()
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self.m.StubOutWithMock(urlfetch, 'get')
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def validate_stack(self, template):
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t = template_format.parse(template)
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stack = self.parse_stack(t)
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res = stack.validate()
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self.assertIsNone(res)
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return stack
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def parse_stack(self, t, data=None):
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ctx = utils.dummy_context('test_username', 'aaaa', 'password')
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stack_name = 'test_stack'
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tmpl = parser.Template(t)
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stack = parser.Stack(ctx, stack_name, tmpl, adopt_stack_data=data)
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stack.store()
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return stack
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def test_nested_stack_three_deep(self):
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root_template = '''
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HeatTemplateFormatVersion: 2012-12-12
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Resources:
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Nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth1.template'
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'''
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depth1_template = '''
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HeatTemplateFormatVersion: 2012-12-12
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Resources:
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Nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth2.template'
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'''
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depth2_template = '''
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HeatTemplateFormatVersion: 2012-12-12
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Resources:
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Nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth3.template'
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Parameters:
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KeyName: foo
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'''
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urlfetch.get(
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'https://server.test/depth1.template').AndReturn(
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depth1_template)
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urlfetch.get(
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'https://server.test/depth2.template').AndReturn(
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depth2_template)
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urlfetch.get(
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'https://server.test/depth3.template').AndReturn(
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self.nested_template)
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self.m.ReplayAll()
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self.validate_stack(root_template)
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self.m.VerifyAll()
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def test_nested_stack_four_deep(self):
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root_template = '''
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HeatTemplateFormatVersion: 2012-12-12
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Resources:
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Nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth1.template'
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'''
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depth1_template = '''
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HeatTemplateFormatVersion: 2012-12-12
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Resources:
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Nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth2.template'
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'''
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depth2_template = '''
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HeatTemplateFormatVersion: 2012-12-12
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Resources:
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Nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth3.template'
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'''
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depth3_template = '''
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HeatTemplateFormatVersion: 2012-12-12
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Resources:
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Nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth4.template'
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Parameters:
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KeyName: foo
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'''
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urlfetch.get(
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'https://server.test/depth1.template').AndReturn(
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depth1_template)
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urlfetch.get(
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'https://server.test/depth2.template').AndReturn(
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depth2_template)
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urlfetch.get(
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'https://server.test/depth3.template').AndReturn(
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depth3_template)
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urlfetch.get(
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'https://server.test/depth4.template').AndReturn(
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self.nested_template)
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self.m.ReplayAll()
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t = template_format.parse(root_template)
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stack = self.parse_stack(t)
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res = self.assertRaises(exception.StackValidationFailed,
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stack.validate)
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self.assertIn('Recursion depth exceeds', six.text_type(res))
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self.m.VerifyAll()
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def test_nested_stack_four_wide(self):
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root_template = '''
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HeatTemplateFormatVersion: 2012-12-12
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Resources:
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Nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth1.template'
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Parameters:
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KeyName: foo
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Nested2:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth2.template'
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Parameters:
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KeyName: foo
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Nested3:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth3.template'
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Parameters:
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KeyName: foo
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Nested4:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/depth4.template'
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Parameters:
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KeyName: foo
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'''
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urlfetch.get(
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'https://server.test/depth1.template').InAnyOrder().AndReturn(
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self.nested_template)
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urlfetch.get(
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'https://server.test/depth2.template').InAnyOrder().AndReturn(
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self.nested_template)
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urlfetch.get(
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'https://server.test/depth3.template').InAnyOrder().AndReturn(
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self.nested_template)
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urlfetch.get(
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'https://server.test/depth4.template').InAnyOrder().AndReturn(
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self.nested_template)
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self.m.ReplayAll()
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self.validate_stack(root_template)
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self.m.VerifyAll()
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def test_nested_stack_infinite_recursion(self):
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template = '''
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HeatTemplateFormatVersion: 2012-12-12
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Resources:
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Nested:
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Type: AWS::CloudFormation::Stack
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Properties:
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TemplateURL: 'https://server.test/the.template'
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'''
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urlfetch.get(
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'https://server.test/the.template').MultipleTimes().AndReturn(
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template)
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self.m.ReplayAll()
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t = template_format.parse(template)
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stack = self.parse_stack(t)
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res = self.assertRaises(exception.StackValidationFailed,
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stack.validate)
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self.assertIn('Recursion depth exceeds', six.text_type(res))
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def test_child_params(self):
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t = template_format.parse(self.test_template)
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stack = self.parse_stack(t)
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nested_stack = stack['the_nested']
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nested_stack.properties.data[nested_stack.PARAMETERS] = {'foo': 'bar'}
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self.assertEqual({'foo': 'bar'}, nested_stack.child_params())
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@mock.patch.object(urlfetch, 'get')
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def test_child_template_when_file_is_fetched(self, mock_get):
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mock_get.return_value = 'template_file'
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t = template_format.parse(self.test_template)
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stack = self.parse_stack(t)
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nested_stack = stack['the_nested']
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with mock.patch('heat.common.template_format.parse') as mock_parse:
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mock_parse.return_value = 'child_template'
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self.assertEqual('child_template', nested_stack.child_template())
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mock_parse.assert_called_once_with('template_file')
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@mock.patch.object(urlfetch, 'get')
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def test_child_template_when_fetching_file_fails(self, mock_get):
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mock_get.side_effect = exceptions.RequestException()
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t = template_format.parse(self.test_template)
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stack = self.parse_stack(t)
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nested_stack = stack['the_nested']
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self.assertRaises(ValueError, nested_stack.child_template)
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@mock.patch.object(urlfetch, 'get')
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def test_child_template_when_io_error(self, mock_get):
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msg = 'Failed to retrieve template'
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mock_get.side_effect = urlfetch.URLFetchError(msg)
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t = template_format.parse(self.test_template)
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stack = self.parse_stack(t)
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nested_stack = stack['the_nested']
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self.assertRaises(ValueError, nested_stack.child_template)
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class ResDataResource(generic_rsrc.GenericResource):
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def handle_create(self):
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self.data_set("test", 'A secret value', True)
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class ResDataNestedStackTest(NestedStackTest):
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nested_template = '''
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HeatTemplateFormatVersion: "2012-12-12"
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Parameters:
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KeyName:
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Type: String
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Resources:
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nested_res:
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Type: "res.data.resource"
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Outputs:
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Foo:
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Value: bar
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'''
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def setUp(self):
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super(ResDataNestedStackTest, self).setUp()
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resource._register_class("res.data.resource", ResDataResource)
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def create_stack(self, template):
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t = template_format.parse(template)
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stack = self.parse_stack(t)
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stack.create()
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self.assertEqual((stack.CREATE, stack.COMPLETE), stack.state)
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return stack
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def test_res_data_delete(self):
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urlfetch.get('https://server.test/the.template').AndReturn(
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self.nested_template)
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self.m.ReplayAll()
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stack = self.create_stack(self.test_template)
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res = stack['the_nested'].nested()['nested_res']
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stack.delete()
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self.assertEqual((stack.DELETE, stack.COMPLETE), stack.state)
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self.assertRaises(exception.NotFound, db_api.resource_data_get, res,
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'test')
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class NestedStackCrudTest(common.HeatTestCase):
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nested_template = '''
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HeatTemplateFormatVersion: '2012-12-12'
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Parameters:
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KeyName:
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Type: String
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Outputs:
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Foo:
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Value: bar
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'''
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def setUp(self):
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super(NestedStackCrudTest, self).setUp()
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ctx = utils.dummy_context('test_username', 'aaaa', 'password')
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empty_template = {"HeatTemplateFormatVersion": "2012-12-12"}
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stack = parser.Stack(ctx, 'test', parser.Template(empty_template))
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stack.store()
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self.patchobject(urlfetch, 'get', return_value=self.nested_template)
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self.nested_parsed = yaml.load(self.nested_template)
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self.nested_params = {"KeyName": "foo"}
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self.defn = rsrc_defn.ResourceDefinition(
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'test_t_res',
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'AWS::CloudFormation::Stack',
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{"TemplateURL": "https://server.test/the.template",
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"Parameters": self.nested_params})
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self.res = stack_res.NestedStack('test_t_res',
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self.defn, stack)
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self.assertIsNone(self.res.validate())
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def test_handle_create(self):
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self.res.create_with_template = mock.Mock(return_value=None)
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self.res.handle_create()
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self.res.create_with_template.assert_called_once_with(
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self.nested_parsed, self.nested_params, None, adopt_data=None)
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def test_handle_adopt(self):
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self.res.create_with_template = mock.Mock(return_value=None)
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self.res.handle_adopt(resource_data={'resource_id': 'fred'})
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self.res.create_with_template.assert_called_once_with(
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self.nested_parsed, self.nested_params, None,
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adopt_data={'resource_id': 'fred'})
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def test_handle_update(self):
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self.res.update_with_template = mock.Mock(return_value=None)
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self.res.handle_update(self.defn, None, None)
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self.res.update_with_template.assert_called_once_with(
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self.nested_parsed, self.nested_params, None)
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def test_handle_delete(self):
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self.res.nested = mock.MagicMock()
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self.res.nested.return_value.delete.return_value = None
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self.res.handle_delete()
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self.res.nested.return_value.delete.assert_called_once_with()
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