257 lines
8.2 KiB
Python
257 lines
8.2 KiB
Python
# Copyright 2013 - Mirantis, Inc.
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# Copyright 2015 - StackStorm, Inc.
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# 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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from mistral import exceptions as exc
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from mistral.expressions import yaql_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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import mock
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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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class YaqlEvaluatorTest(base.BaseTest):
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def setUp(self):
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super(YaqlEvaluatorTest, self).setUp()
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self._evaluator = expr.YAQLEvaluator()
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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("$.server.status = 'ACTIVE'", DATA)
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self.assertTrue(res)
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def test_wrong_expression(self):
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res = self._evaluator.evaluate("$.status = 'Invalid value'", DATA)
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self.assertFalse(res)
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self.assertRaises(
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exc.YaqlEvaluationException,
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self._evaluator.evaluate,
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'$.wrong_key',
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DATA
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)
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expression_str = 'invalid_expression_string'
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res = self._evaluator.evaluate(expression_str, DATA)
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self.assertEqual(expression_str, res)
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def test_select_result(self):
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res = self._evaluator.evaluate(
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'$.servers.where($.name = ubuntu)',
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SERVERS
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)
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item = list(res)[0]
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self.assertEqual({'name': 'ubuntu'}, item)
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def test_function_string(self):
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self.assertEqual('3', self._evaluator.evaluate('str($)', '3'))
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self.assertEqual('3', self._evaluator.evaluate('str($)', 3))
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def test_function_len(self):
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self.assertEqual(3, self._evaluator.evaluate('len($)', '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('$.where($.some = thing).len()', data)
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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 * $.a2')
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def test_validate_failed(self):
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self.assertRaises(exc.YaqlGrammarException,
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self._evaluator.validate,
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'*')
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self.assertRaises(exc.YaqlGrammarException,
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self._evaluator.validate,
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[1, 2, 3])
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self.assertRaises(exc.YaqlGrammarException,
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self._evaluator.validate,
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{'a': 1})
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def test_function_json_pp(self):
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self.assertEqual('"3"', self._evaluator.evaluate('json_pp($)', '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_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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@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_execution_result.return_value = 'task_execution_result'
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task = type("obj", (object,), {
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'id': 'id',
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'name': 'name',
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'published': 'published',
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'result': task_execution_result(),
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'spec': 'spec',
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'state': 'state',
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'state_info': 'state_info',
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'type': 'type',
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'workflow_execution_id': 'workflow_execution_id'
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})()
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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(some)', ctx)
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self.assertEqual(1, len(result))
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self.assertDictEqual({
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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.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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}, result[0])
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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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class InlineYAQLEvaluatorTest(base.BaseTest):
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def setUp(self):
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super(InlineYAQLEvaluatorTest, self).setUp()
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self._evaluator = expr.InlineYAQLEvaluator()
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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_single_value_casting(self):
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self.assertEqual(3, self._evaluator.evaluate('<% $ %>', 3))
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self.assertEqual('33', self._evaluator.evaluate('<% $ %><% $ %>', 3))
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def test_function_string(self):
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self.assertEqual('3', self._evaluator.evaluate('<% str($) %>', '3'))
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self.assertEqual('3', self._evaluator.evaluate('<% str($) %>', 3))
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def test_validate(self):
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self._evaluator.validate('There is no expression.')
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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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self._evaluator.validate('<% $.a1 %> is <% $.a2 %>')
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self._evaluator.validate('The value is <% $.a1 %>.')
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def test_validate_failed(self):
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self.assertRaises(exc.YaqlGrammarException,
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self._evaluator.validate,
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'The value is <% * %>.')
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self.assertRaises(exc.YaqlEvaluationException,
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self._evaluator.validate,
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[1, 2, 3])
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self.assertRaises(exc.YaqlEvaluationException,
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self._evaluator.validate,
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{'a': 1})
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