523fbdb645
The new grammar allows to specify record selector and condition in the same string. Example: '[type == "agent"] >> (stats.bandwidth.mean > 800)' -- pick records with attribute 'type' equal to 'agent' and check condition against every. Change-Id: Icdf92400991029a1f06a6487679faad8acea7afe
66 lines
2.7 KiB
Python
66 lines
2.7 KiB
Python
# Copyright (c) 2015 Mirantis 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
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# 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 ast
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import testtools
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from shaker.engine import sla
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class TestSla(testtools.TestCase):
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def test_eval(self):
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self.assertEqual(2 ** 6, sla.eval_expr('2**6'))
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self.assertEqual(True, sla.eval_expr('11 > a > 5', {'a': 7}))
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self.assertEqual(42, sla.eval_expr('2 + a.b', {'a': {'b': 40}}))
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self.assertEqual(True, sla.eval_expr('11 > 7 and 5 < 6'))
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self.assertEqual(False, sla.eval_expr('(not 11 > 7) or (not 5 < 6)'))
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def test_eval_regex(self):
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self.assertEqual(True, sla.eval_expr('"some text" & "\w+\s+\w+"'))
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self.assertEqual(False, sla.eval_expr('"some text" & "\d+"'))
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def test_eval_sla(self):
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records = [{'type': 'agent', 'test': 'iperf_tcp',
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'stats': {'bandwidth': {'mean': 700}}},
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{'type': 'agent', 'test': 'iperf_udp',
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'stats': {'bandwidth': {'mean': 1000}}},
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{'type': 'node', 'test': 'iperf_tcp',
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'stats': {'bandwidth': {'mean': 850}}}]
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expr = 'stats.bandwidth.mean > 800'
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sla_records = sla.eval_expr('[type == "agent"] >> (%s)' % expr,
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records)
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self.assertEqual([
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sla.SLAItem(record=records[0], state=False, expression=expr),
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sla.SLAItem(record=records[1], state=True, expression=expr)],
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sla_records)
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expr = 'stats.bandwidth.mean > 900'
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sla_records = sla.eval_expr('[test == "iperf_udp", type == "node"] >> '
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'(%s)' % expr, records)
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self.assertEqual([
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sla.SLAItem(record=records[1], state=True, expression=expr),
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sla.SLAItem(record=records[2], state=False, expression=expr)],
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sla_records)
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def test_dump_ast_node(self):
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self.assertEqual('(stats.bandwidth.mean > 900)', sla.dump_ast_node(
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ast.parse('stats.bandwidth.mean > 900', mode='eval')))
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expr = ('(stats.bandwidth.mean > 900 and not stats.ping.max < 0.5 and '
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'stats.ping.mean < 0.35)')
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self.assertEqual(expr,
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sla.dump_ast_node(ast.parse(expr, mode='eval')))
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