text: #
  # Copyright 2016 Mirantis, Inc
  #
  # Licensed under the Apache License, Version 2.0 (the "License"); you may
  # not use this file except in compliance with the License. You may obtain
  # a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  # License for the specific language governing permissions and limitations
  # under the License.
  from unittest import mock
  
  import fixtures
  
  from ceilometer import declarative
  from ceilometer.tests import base
  
  
  class TestDefinition(base.BaseTestCase):
  
      def setUp(self):
          super(TestDefinition, self).setUp()
          self.configs = [
              "_field1",
              "_field2|_field3",
              {'fields': 'field4.`split(., 1, 1)`'},
              {'fields': ['field5.arg', 'field6'], 'type': 'text'}
          ]
          self.parser = mock.MagicMock()
          parser_patch = fixtures.MockPatch(
              "jsonpath_rw_ext.parser.ExtentedJsonPathParser.parse",
              new=self.parser)
          self.useFixture(parser_patch)
  
      def test_caching_parsers(self):
          for config in self.configs * 2:
              declarative.Definition("test", config, mock.MagicMock())
          self.assertEqual(4, self.parser.call_count)
          self.parser.assert_has_calls([
              mock.call("_field1"),
              mock.call("_field2|_field3"),
              mock.call("field4.`split(., 1, 1)`"),
              mock.call("(field5.arg)|(field6)"),
          ])
  