61 lines
2.2 KiB
Python
61 lines
2.2 KiB
Python
# (C) Copyright 2016-2017 Hewlett Packard Enterprise Development LP
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# Copyright 2017 Fujitsu LIMITED
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#
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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 pyparsing
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from monasca_api.expression_parser import alarm_expr_parser
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from monasca_api.tests import base
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class TestAlarmExpression(base.BaseTestCase):
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good_simple_expression = "max(cpu.idle_perc{hostname=fred}, 60) > 10 times 4"
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def test_good_expression(self):
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expression = self.good_simple_expression
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sub_exprs = alarm_expr_parser.AlarmExprParser(expression).sub_expr_list
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self.assertEqual(1, len(sub_exprs))
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def _ensure_parse_fails(self, expression):
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parser = alarm_expr_parser.AlarmExprParser(expression)
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self.assertRaises(
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(pyparsing.ParseException,
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pyparsing.ParseFatalException),
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getattr, parser, "sub_expr_list")
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def test_no_dimension_name(self):
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expression = self.good_simple_expression.replace('hostname', '')
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self._ensure_parse_fails(expression)
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def test_no_metric_name(self):
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expression = self.good_simple_expression.replace('cpu.idle_perc', '')
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self._ensure_parse_fails(expression)
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def test_invalid_period(self):
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expression = self.good_simple_expression.replace('60', '42')
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self._ensure_parse_fails(expression)
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def test_zero_period(self):
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expression = self.good_simple_expression.replace('60', '0')
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self._ensure_parse_fails(expression)
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def test_negative_period(self):
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expression = self.good_simple_expression.replace('60', '-60')
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self._ensure_parse_fails(expression)
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def test_zero_periods(self):
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expression = self.good_simple_expression.replace('times 4', 'times 0')
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self._ensure_parse_fails(expression)
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