154 lines
6.7 KiB
Python
154 lines
6.7 KiB
Python
# (C) Copyright 2016-2017 Hewlett Packard Enterprise Development LP
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# Copyright 2019 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_common.expression_parser import alarm_expr_parser
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from oslotest import base as oslotest_base
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class TestAlarmExpression(oslotest_base.BaseTestCase):
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good_simple_expression = "max(cpu.idle_perc{hostname=fred}, 60) <= 3 times 4 OR \
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avg(CPU.PERCENT)<5 OR min(cpu.percent, deterministic) gte 3"
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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(3, len(sub_exprs))
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def test_fmtd_sub_expr(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([x.fmtd_sub_expr_str for x in sub_exprs],
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['MAX(cpu.idle_perc{hostname=fred}) <= 3.0 times 4',
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'AVG(CPU.PERCENT{}) < 5.0', 'MIN(cpu.percent{}) gte 3.0'])
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def test_dimensions_str(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([x.dimensions_str for x in sub_exprs], ['hostname=fred', '', ''])
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def test_function(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([x.func for x in sub_exprs], ['max', 'avg', 'min'])
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def test_normalized_function(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([x.normalized_func for x in sub_exprs], ['MAX', 'AVG', 'MIN'])
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def test_metric_name(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([x.metric_name for x in sub_exprs],
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['cpu.idle_perc', 'CPU.PERCENT', 'cpu.percent'])
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def test_normalized_metric_name(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([x.normalized_metric_name for x in sub_exprs],
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['cpu.idle_perc', 'cpu.percent', 'cpu.percent'])
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def test_dimensions(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([x.dimensions for x in sub_exprs], ['hostname=fred', '', ''])
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def test_dimensions_as_list(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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print([x.dimensions_as_list for x in sub_exprs].__str__())
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self.assertEqual([x.dimensions_as_list for x in sub_exprs].__str__(),
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"[(['hostname=fred'], {}), [], []]")
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def test_operator(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([x.operator for x in sub_exprs], ['<=', '<', 'gte'])
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def test_threshold(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([x.threshold for x in sub_exprs], [3.0, 5.0, 3.0])
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def test_period(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([x.period for x in sub_exprs], [60, 60, 60])
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def test_periods(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([x.periods for x in sub_exprs], [4, 1, 1])
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def test_deterministic(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([x.deterministic for x in sub_exprs], [False, False, True])
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def test_normalized_operator(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([x.normalized_operator for x in sub_exprs], ['LTE', 'LT', 'GTE'])
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def test_id(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([x.id for x in sub_exprs], [None, None, None])
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def test_set_id(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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for x in sub_exprs:
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x.id = 88
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self.assertEqual([x.id for x in sub_exprs], [88, 88, 88])
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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_incomplete_operator(self):
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expression = self.good_simple_expression.replace('<= 3', '')
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self._ensure_parse_fails(expression)
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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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