608 lines
20 KiB
Python
608 lines
20 KiB
Python
# Copyright 2016 - Brocade Communications Systems, Inc.
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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 datetime
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import mock
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from mistral.db.v2.sqlalchemy import api as db_api
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from mistral import exceptions as exc
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from mistral.expressions import jinja_expression as expr
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from mistral.tests.unit import base
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from mistral import utils
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DATA = {
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"server": {
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"id": "03ea824a-aa24-4105-9131-66c48ae54acf",
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"name": "cloud-fedora",
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"status": "ACTIVE"
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},
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"status": "OK"
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}
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SERVERS = {
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"servers": [
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{'name': 'centos'},
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{'name': 'ubuntu'},
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{'name': 'fedora'}
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]
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}
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WF_EXECS = [
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{
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'spec': {},
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'id': "one",
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'start_params': {'task': 'my_task1'},
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'state': 'IDLE',
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'state_info': "Running...",
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'created_at': datetime.datetime(2016, 12, 1, 15, 0, 0),
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'updated_at': None,
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'context': None,
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'task_id': None,
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'trust_id': None,
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'description': None,
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'output': None
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},
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{
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'spec': {},
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'id': "two",
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'root_execution_id': "one",
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'start_params': {'task': 'my_task1'},
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'state': 'RUNNING',
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'state_info': "Running...",
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'created_at': datetime.datetime(2016, 12, 1, 15, 1, 0),
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'updated_at': None,
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'context': {'image_id': '123123'},
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'task_id': None,
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'trust_id': None,
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'description': None,
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'output': None
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}
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]
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class JinjaEvaluatorTest(base.BaseTest):
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def setUp(self):
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super(JinjaEvaluatorTest, self).setUp()
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self._evaluator = expr.JinjaEvaluator()
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def test_expression_result(self):
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res = self._evaluator.evaluate('_.server', DATA)
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self.assertEqual({
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'id': '03ea824a-aa24-4105-9131-66c48ae54acf',
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'name': 'cloud-fedora',
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'status': 'ACTIVE'
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}, res)
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res = self._evaluator.evaluate('_.server.id', DATA)
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self.assertEqual('03ea824a-aa24-4105-9131-66c48ae54acf', res)
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res = self._evaluator.evaluate("_.server.status == 'ACTIVE'", DATA)
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self.assertTrue(res)
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def test_select_result(self):
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res = self._evaluator.evaluate(
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'_.servers|selectattr("name", "equalto", "ubuntu")',
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SERVERS
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)
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item = list(res)[0]
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self.assertEqual({'name': 'ubuntu'}, item)
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def test_function_string(self):
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self.assertEqual('3', self._evaluator.evaluate('_|string', '3'))
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self.assertEqual('3', self._evaluator.evaluate('_|string', 3))
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def test_function_len(self):
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self.assertEqual(3,
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self._evaluator.evaluate('_|length', 'hey'))
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data = [{'some': 'thing'}]
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self.assertEqual(
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1,
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self._evaluator.evaluate(
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'_|selectattr("some", "equalto", "thing")|list|length',
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data
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)
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)
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def test_validate(self):
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self._evaluator.validate('abc')
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self._evaluator.validate('1')
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self._evaluator.validate('1 + 2')
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self._evaluator.validate('_.a1')
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self._evaluator.validate('_.a1 * _.a2')
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def test_validate_failed(self):
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self.assertRaises(exc.JinjaGrammarException,
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self._evaluator.validate,
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'*')
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self.assertRaises(exc.JinjaEvaluationException,
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self._evaluator.validate,
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[1, 2, 3])
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self.assertRaises(exc.JinjaEvaluationException,
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self._evaluator.validate,
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{'a': 1})
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def test_function_json_pp(self):
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self.assertEqual('"3"', self._evaluator.evaluate('json_pp(_)', '3'))
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self.assertEqual('3', self._evaluator.evaluate('json_pp(_)', 3))
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self.assertEqual(
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'[\n 1,\n 2\n]',
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self._evaluator.evaluate('json_pp(_)', [1, 2])
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)
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self.assertEqual(
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'{\n "a": "b"\n}',
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self._evaluator.evaluate('json_pp(_)', {'a': 'b'})
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)
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self.assertEqual(
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'"Mistral\nis\nawesome"',
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self._evaluator.evaluate(
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'json_pp(_)', '\n'.join(['Mistral', 'is', 'awesome'])
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)
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)
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def test_filter_json_pp(self):
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self.assertEqual('"3"', self._evaluator.evaluate('_|json_pp', '3'))
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self.assertEqual('3', self._evaluator.evaluate('_|json_pp', 3))
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self.assertEqual(
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'[\n 1,\n 2\n]',
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self._evaluator.evaluate('_|json_pp', [1, 2])
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)
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self.assertEqual(
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'{\n "a": "b"\n}',
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self._evaluator.evaluate('_|json_pp', {'a': 'b'})
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)
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self.assertEqual(
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'"Mistral\nis\nawesome"',
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self._evaluator.evaluate(
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'_|json_pp', '\n'.join(['Mistral', 'is', 'awesome'])
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)
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)
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def test_function_uuid(self):
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uuid = self._evaluator.evaluate('uuid()', {})
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self.assertTrue(utils.is_valid_uuid(uuid))
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def test_filter_uuid(self):
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uuid = self._evaluator.evaluate('_|uuid', '3')
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self.assertTrue(utils.is_valid_uuid(uuid))
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def test_function_env(self):
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ctx = {'__env': 'some'}
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self.assertEqual(ctx['__env'], self._evaluator.evaluate('env()', ctx))
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def test_filter_env(self):
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ctx = {'__env': 'some'}
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self.assertEqual(ctx['__env'], self._evaluator.evaluate('_|env', ctx))
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@mock.patch('mistral.db.v2.api.get_task_executions')
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@mock.patch('mistral.workflow.data_flow.get_task_execution_result')
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def test_filter_task_without_task_execution(self, task_execution_result,
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task_executions):
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task = mock.MagicMock(return_value={})
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task_executions.return_value = [task]
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ctx = {
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'__task_execution': None,
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'__execution': {
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'id': 'some'
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}
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}
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result = self._evaluator.evaluate('_|task("some")', ctx)
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self.assertEqual({
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'id': task.id,
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'name': task.name,
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'published': task.published,
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'result': task_execution_result(),
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'spec': task.spec,
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'state': task.state,
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'state_info': task.state_info,
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'type': task.type,
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'workflow_execution_id': task.workflow_execution_id,
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'created_at': task.created_at.isoformat(' '),
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'updated_at': task.updated_at.isoformat(' ')
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}, result)
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@mock.patch('mistral.db.v2.api.get_task_executions')
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@mock.patch('mistral.workflow.data_flow.get_task_execution_result')
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def test_filter_tasks_without_task_execution(self, task_execution_result,
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task_executions):
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task = mock.MagicMock(return_value={})
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task_executions.return_value = [task]
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ctx = {
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'__task_execution': None,
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'__execution': {
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'id': 'some'
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}
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}
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result = self._evaluator.evaluate('_|tasks()', ctx)
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self.assertEqual([{
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'id': task.id,
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'name': task.name,
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'published': task.published,
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'result': task_execution_result(),
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'spec': task.spec,
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'state': task.state,
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'state_info': task.state_info,
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'type': task.type,
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'workflow_execution_id': task.workflow_execution_id,
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'created_at': task.created_at.isoformat(' '),
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'updated_at': task.updated_at.isoformat(' ')
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}], result)
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@mock.patch('mistral.db.v2.api.get_task_execution')
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@mock.patch('mistral.workflow.data_flow.get_task_execution_result')
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def test_filter_task_with_taskexecution(self, task_execution_result,
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task_execution):
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ctx = {
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'__task_execution': {
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'id': 'some',
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'name': 'some'
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}
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}
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result = self._evaluator.evaluate('_|task("some")', ctx)
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self.assertEqual({
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'id': task_execution().id,
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'name': task_execution().name,
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'published': task_execution().published,
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'result': task_execution_result(),
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'spec': task_execution().spec,
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'state': task_execution().state,
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'state_info': task_execution().state_info,
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'type': task_execution().type,
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'workflow_execution_id': task_execution().workflow_execution_id,
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'created_at': task_execution().created_at.isoformat(' '),
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'updated_at': task_execution().updated_at.isoformat(' ')
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}, result)
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@mock.patch('mistral.db.v2.api.get_task_execution')
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@mock.patch('mistral.workflow.data_flow.get_task_execution_result')
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def test_function_task(self, task_execution_result, task_execution):
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ctx = {
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'__task_execution': {
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'id': 'some',
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'name': 'some'
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}
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}
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result = self._evaluator.evaluate('task("some")', ctx)
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self.assertEqual({
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'id': task_execution().id,
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'name': task_execution().name,
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'published': task_execution().published,
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'result': task_execution_result(),
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'spec': task_execution().spec,
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'state': task_execution().state,
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'state_info': task_execution().state_info,
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'type': task_execution().type,
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'workflow_execution_id': task_execution().workflow_execution_id,
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'created_at': task_execution().created_at.isoformat(' '),
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'updated_at': task_execution().updated_at.isoformat(' ')
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}, result)
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@mock.patch('mistral.db.v2.api.get_workflow_execution')
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def test_filter_execution(self, workflow_execution):
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wf_ex = mock.MagicMock(return_value={})
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workflow_execution.return_value = wf_ex
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ctx = {
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'__execution': {
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'id': 'some'
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}
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}
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result = self._evaluator.evaluate('_|execution', ctx)
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self.assertEqual({
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'id': wf_ex.id,
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'name': wf_ex.name,
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'spec': wf_ex.spec,
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'input': wf_ex.input,
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'params': wf_ex.params,
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'created_at': wf_ex.created_at.isoformat(' '),
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'updated_at': wf_ex.updated_at.isoformat(' ')
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}, result)
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def test_executions(self):
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with db_api.transaction(read_only=True):
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created0 = db_api.create_workflow_execution(WF_EXECS[0])
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created1 = db_api.create_workflow_execution(WF_EXECS[1])
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ctx = {
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'__execution': {
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'id': 'some'
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}
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}
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result = self._evaluator.evaluate('_|executions()', ctx)
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self.assertEqual([created0, created1], result)
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def test_executions_id_filter(self):
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with db_api.transaction(read_only=True):
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created0 = db_api.create_workflow_execution(WF_EXECS[0])
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created1 = db_api.create_workflow_execution(WF_EXECS[1])
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ctx = {
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'__execution': {
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'id': 'some'
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}
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}
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result = self._evaluator.evaluate('_|executions("one")', ctx)
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self.assertEqual([created0], result)
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result = self._evaluator.evaluate(
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'executions(root_execution_id="one") ', ctx
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)
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self.assertEqual([created1], result)
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def test_executions_state_filter(self):
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with db_api.transaction(read_only=True):
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db_api.create_workflow_execution(WF_EXECS[0])
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created1 = db_api.create_workflow_execution(WF_EXECS[1])
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ctx = {
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'__execution': {
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'id': 'some'
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}
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}
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result = self._evaluator.evaluate(
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'_|executions(state="RUNNING")', ctx
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)
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self.assertEqual([created1], result)
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result = self._evaluator.evaluate(
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'_|executions(id="one", state="RUNNING")', ctx
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)
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self.assertEqual([], result)
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def test_executions_from_time_filter(self):
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with db_api.transaction(read_only=True):
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created0 = db_api.create_workflow_execution(WF_EXECS[0])
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created1 = db_api.create_workflow_execution(WF_EXECS[1])
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ctx = {
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'__execution': {
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'id': 'some'
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}
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}
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result = self._evaluator.evaluate(
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'_|executions(from_time="2000-01-01")', ctx
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)
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self.assertEqual([created0, created1], result)
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result = self._evaluator.evaluate(
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'_|executions(from_time="2016-12-01 15:01:00")', ctx
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)
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self.assertEqual([created1], result)
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result = self._evaluator.evaluate(
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'_|executions(id="one", from_time="2016-12-01 15:01:00")', ctx
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)
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self.assertEqual([], result)
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def test_executions_to_time_filter(self):
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with db_api.transaction(read_only=True):
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created0 = db_api.create_workflow_execution(WF_EXECS[0])
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created1 = db_api.create_workflow_execution(WF_EXECS[1])
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ctx = {
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'__execution': {
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'id': 'some'
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}
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}
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result = self._evaluator.evaluate(
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'_|executions(to_time="2020-01-01")', ctx
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)
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self.assertEqual([created0, created1], result)
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result = self._evaluator.evaluate(
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'_|executions(to_time="2016-12-01 15:01:00")', ctx
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)
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self.assertEqual([created0], result)
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result = self._evaluator.evaluate(
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'_|executions(id="two", to_time="2016-12-01 15:01:00")', ctx
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)
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self.assertEqual([], result)
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@mock.patch('mistral.db.v2.api.get_workflow_execution')
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def test_function_execution(self, workflow_execution):
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wf_ex = mock.MagicMock(return_value={})
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workflow_execution.return_value = wf_ex
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ctx = {
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'__execution': {
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'id': 'some'
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}
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}
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result = self._evaluator.evaluate('execution()', ctx)
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self.assertEqual({
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'id': wf_ex.id,
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'name': wf_ex.name,
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'spec': wf_ex.spec,
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'input': wf_ex.input,
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'params': wf_ex.params,
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'created_at': wf_ex.created_at.isoformat(' '),
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'updated_at': wf_ex.updated_at.isoformat(' ')
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}, result)
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class InlineJinjaEvaluatorTest(base.BaseTest):
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def setUp(self):
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super(InlineJinjaEvaluatorTest, self).setUp()
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self._evaluator = expr.InlineJinjaEvaluator()
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def test_multiple_placeholders(self):
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expr_str = """
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Statistics for tenant "{{ _.project_id }}"
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Number of virtual machines: {{ _.vm_count }}
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Number of active virtual machines: {{ _.active_vm_count }}
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Number of networks: {{ _.net_count }}
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-- Sincerely, Mistral Team.
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"""
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result = self._evaluator.evaluate(
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expr_str,
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{
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'project_id': '1-2-3-4',
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'vm_count': 28,
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'active_vm_count': 0,
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'net_count': 1
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}
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)
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expected_result = """
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Statistics for tenant "1-2-3-4"
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Number of virtual machines: 28
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Number of active virtual machines: 0
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Number of networks: 1
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-- Sincerely, Mistral Team.
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"""
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self.assertEqual(expected_result, result)
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def test_block_placeholders(self):
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expr_str = """
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Statistics for tenant "{{ _.project_id }}"
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Number of virtual machines: {{ _.vm_count }}
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{% if _.active_vm_count %}
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Number of active virtual machines: {{ _.active_vm_count }}
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{% endif %}
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Number of networks: {{ _.net_count }}
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-- Sincerely, Mistral Team.
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"""
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result = self._evaluator.evaluate(
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expr_str,
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{
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'project_id': '1-2-3-4',
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'vm_count': 28,
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'active_vm_count': 0,
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'net_count': 1
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}
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)
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expected_result = """
|
|
Statistics for tenant "1-2-3-4"
|
|
|
|
Number of virtual machines: 28
|
|
Number of networks: 1
|
|
|
|
-- Sincerely, Mistral Team.
|
|
"""
|
|
|
|
self.assertEqual(expected_result, result)
|
|
|
|
def test_single_value_casting(self):
|
|
self.assertEqual(3, self._evaluator.evaluate('{{ _ }}', 3))
|
|
self.assertEqual('33', self._evaluator.evaluate('{{ _ }}{{ _ }}', 3))
|
|
|
|
def test_multiple_expressions(self):
|
|
context = {'dir': '/tmp',
|
|
'file': 'a.txt'}
|
|
expected_result = '/tmp/a.txt'
|
|
result = self._evaluator.evaluate('{{ _.dir }}/{{ _.file }}', context)
|
|
self.assertEqual(expected_result, result)
|
|
|
|
def test_function_string(self):
|
|
self.assertEqual('3', self._evaluator.evaluate('{{ _|string }}', '3'))
|
|
self.assertEqual('3', self._evaluator.evaluate('{{ _|string }}', 3))
|
|
|
|
def test_validate(self):
|
|
self._evaluator.validate('There is no expression.')
|
|
self._evaluator.validate('{{ abc }}')
|
|
self._evaluator.validate('{{ 1 }}')
|
|
self._evaluator.validate('{{ 1 + 2 }}')
|
|
self._evaluator.validate('{{ _.a1 }}')
|
|
self._evaluator.validate('{{ _.a1 * _.a2 }}')
|
|
self._evaluator.validate('{{ _.a1 }} is {{ _.a2 }}')
|
|
self._evaluator.validate('The value is {{ _.a1 }}.')
|
|
|
|
def test_validate_failed(self):
|
|
self.assertRaises(exc.JinjaGrammarException,
|
|
self._evaluator.validate,
|
|
'The value is {{ * }}.')
|
|
|
|
self.assertRaises(exc.JinjaEvaluationException,
|
|
self._evaluator.validate,
|
|
[1, 2, 3])
|
|
|
|
self.assertRaises(exc.JinjaEvaluationException,
|
|
self._evaluator.validate,
|
|
{'a': 1})
|
|
|
|
def test_wrong_expression(self):
|
|
res = self._evaluator.evaluate("{{ _.status == 'Invalid value' }}",
|
|
DATA)
|
|
self.assertFalse(res)
|
|
|
|
# One thing to note about Jinja is that by default it would not raise
|
|
# an exception on KeyError inside the expression, it will consider
|
|
# value to be None. Same with NameError, it won't return an original
|
|
# expression (which by itself seems confusing). Jinja allows us to
|
|
# change behavior in both cases by switching to StrictUndefined, but
|
|
# either one or the other will surely suffer.
|
|
|
|
self.assertRaises(
|
|
exc.JinjaEvaluationException,
|
|
self._evaluator.evaluate,
|
|
'{{ _.wrong_key }}',
|
|
DATA
|
|
)
|
|
|
|
self.assertRaises(
|
|
exc.JinjaEvaluationException,
|
|
self._evaluator.evaluate,
|
|
'{{ invalid_expression_string }}',
|
|
DATA
|
|
)
|
|
|
|
self.assertRaises(
|
|
exc.JinjaEvaluationException,
|
|
self._evaluator.evaluate,
|
|
'!! {{ _.nonexistent_variable }} !!',
|
|
DATA
|
|
)
|