215 lines
5.3 KiB
Python
215 lines
5.3 KiB
Python
# Copyright 2018 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import itertools
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import yaml
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from deckhand.tests.unit.engine import test_document_layering
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class TestDocumentLayeringWithReplacement(
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test_document_layering.TestDocumentLayering):
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def setUp(self):
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super(TestDocumentLayeringWithReplacement, self).setUp()
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self.documents = list(yaml.safe_load_all("""
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---
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schema: deckhand/LayeringPolicy/v1
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metadata:
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schema: metadata/Control/v1
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name: layering-policy
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data:
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layerOrder:
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- global
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- site
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---
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schema: aic/Versions/v1
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metadata:
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schema: metadata/Document/v1
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name: a
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labels:
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selector: foo
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layeringDefinition:
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abstract: False
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layer: global
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data:
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conf:
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foo: default
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---
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schema: aic/Versions/v1
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metadata:
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schema: metadata/Document/v1
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name: a
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labels:
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selector: baz
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replacement: true
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layeringDefinition:
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abstract: False
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layer: site
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parentSelector:
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selector: foo
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actions:
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- method: merge
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path: .
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data:
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conf:
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bar: override
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---
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schema: armada/Chart/v1
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metadata:
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schema: metadata/Document/v1
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name: c
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layeringDefinition:
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abstract: False
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layer: global
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substitutions:
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- src:
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schema: aic/Versions/v1
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name: a
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path: .conf
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dest:
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path: .application.conf
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data:
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application:
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conf: {}
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...
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"""))
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def test_basic_replacement(self):
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"""Verify that the replacement document is the only one returned."""
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site_expected = [{"conf": {"foo": "default", "bar": "override"}}]
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global_expected = None
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self.documents = self.documents[:-1]
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self._test_layering(self.documents, site_expected,
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global_expected=global_expected)
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def test_replacement_with_substitution_from_replacer(self):
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"""Verify that using a replacement document as a substitution source
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works.
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"""
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site_expected = [{"conf": {"foo": "default", "bar": "override"}}]
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global_expected = [
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{"application": {"conf": {"foo": "default", "bar": "override"}}}]
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# The replacer should be used as the source.
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self._test_layering(self.documents, site_expected,
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global_expected=global_expected)
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# Attempt the same scenario but reverse the order of the documents,
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# which verifies that the replacer always takes priority.
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self._test_layering(self.documents, site_expected,
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global_expected=global_expected)
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def test_replacement_with_layering_with_replacer(self):
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"""Verify that replacement works alongside layering. This scenario
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involves a parent, a child that replaces its parent, and yet another
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child that layers with the replacement document.
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"""
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self.documents = list(yaml.safe_load_all("""
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---
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schema: deckhand/LayeringPolicy/v1
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metadata:
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schema: metadata/Control/v1
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name: layering-policy
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data:
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layerOrder:
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- global
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- site
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---
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schema: aic/Versions/v1
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metadata:
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schema: metadata/Document/v1
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name: a
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labels:
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selector: foo
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layeringDefinition:
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abstract: False
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layer: global
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data:
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conf:
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foo: default
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---
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schema: aic/Versions/v1
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metadata:
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schema: metadata/Document/v1
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name: a
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labels:
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selector: baz
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replacement: true
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layeringDefinition:
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abstract: False
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layer: site
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parentSelector:
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selector: foo
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actions:
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- method: merge
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path: .
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data:
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conf:
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bar: override
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---
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schema: aic/Versions/v1
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metadata:
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schema: metadata/Document/v1
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name: b
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labels:
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selector: qux
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layeringDefinition:
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abstract: False
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layer: site
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parentSelector:
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selector: foo
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actions:
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- method: merge
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path: .
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data:
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conf:
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baz: another
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---
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schema: armada/Chart/v1
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metadata:
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schema: metadata/Document/v1
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name: c
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layeringDefinition:
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abstract: False
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layer: global
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substitutions:
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- src:
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schema: aic/Versions/v1
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name: a
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path: .conf
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dest:
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path: .application.conf
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data:
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application:
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conf: {}
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...
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"""))
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site_expected = [
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{"conf": {"foo": "default", "bar": "override"}},
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{"conf": {"foo": "default", "bar": "override", "baz": "another"}},
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]
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global_expected = [
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{"application": {"conf": {"foo": "default", "bar": "override"}}}
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]
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self._test_layering(self.documents, site_expected=site_expected,
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global_expected=global_expected)
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# Try different permutations of document orders for good measure.
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for documents in list(itertools.permutations(self.documents))[:10]:
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self._test_layering(
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documents, site_expected=site_expected,
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global_expected=global_expected)
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