101 lines
4.1 KiB
Python
101 lines
4.1 KiB
Python
#!/usr/bin/env python
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# Copyright (c) 2016 Hewlett Packard Enterprise Development Company, L.P.
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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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from monasca_analytics.exception.banana import BananaEnvironmentError
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from monasca_analytics.exception.banana import BananaInvalidExpression
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from monasca_analytics.parsing.api import create_fn_with_config
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from monasca_analytics.parsing.api import validate_environment
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from monasca_analytics.parsing.api import validate_expression
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from monasca_analytics.parsing.api import validate_name_binding
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from test.util_for_testing import MonanasTestCase
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class TestBananaAPI(MonanasTestCase):
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def setUp(self):
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super(TestBananaAPI, self).setUp()
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def tearDown(self):
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super(TestBananaAPI, self).tearDown()
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def test_validate_expression_is_valid(self):
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validate_expression("a + b")
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validate_expression("a * b")
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validate_expression("a - b")
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validate_expression("a / b")
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validate_expression("a / b + 12 * (1 - a)")
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def test_validate_expression_is_invalid(self):
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self.assertRaises(BananaInvalidExpression, validate_expression,
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"a123")
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self.assertRaises(BananaInvalidExpression, validate_expression,
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"a n + 15")
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self.assertRaises(BananaInvalidExpression, validate_expression,
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"a * exp(b)")
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self.assertRaises(BananaInvalidExpression, validate_expression,
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"-a")
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self.assertRaises(BananaInvalidExpression, validate_expression,
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"- a")
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self.assertRaises(BananaInvalidExpression, validate_expression,
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"+ b")
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def test_validate_name_binding_is_valid(self):
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validate_name_binding(
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validate_expression("a + b * c"),
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{"a": "foo", "b": "foo", "c": "bar"}
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)
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def test_validate_name_binding_is_invalid(self):
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self.assertRaises(BananaInvalidExpression,
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validate_name_binding,
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validate_expression("a + b * c"),
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{"a": "foo", "c": "bar"})
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def test_validate_environment_is_valid(self):
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validate_environment({"a": "foo", "c": "bar"})
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def test_validate_environment_is_invalid(self):
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self.assertRaises(BananaEnvironmentError,
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validate_environment, {"a": 0})
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def test_generated_fn_is_valid(self):
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fn = create_fn_with_config({"a": "foo", "b": "bar", "c": "toto"},
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"a * b + c")
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result = fn({"foo": 12, "bar": 2, "toto": -12})
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self.assertEqual(result, 12)
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result = fn({"foo": 0, "bar": 42, "toto": 13})
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self.assertEqual(result, 13)
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result = fn({"foo": 2, "bar": 3, "toto": 5})
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self.assertEqual(result, 11)
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def test_generated_fn_with_parentheses_in_expr1(self):
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fn = create_fn_with_config({"a": "foo", "b": "bar", "c": "toto"},
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"(a - b) + c")
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result = fn({"foo": 12, "bar": 2, "toto": -12})
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self.assertEqual(result, -2)
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def test_generated_fn_with_parentheses_in_expr2(self):
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fn = create_fn_with_config({"a": "foo", "b": "bar", "c": "toto"},
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"a - (b + c)")
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result = fn({"foo": 12, "bar": 2, "toto": -12})
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self.assertEqual(result, 22)
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def test_generated_fn_with_no_parentheses_in_expr(self):
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fn = create_fn_with_config({"a": "foo", "b": "bar", "c": "toto"},
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"a - b + c")
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result = fn({"foo": 12, "bar": 2, "toto": 12})
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self.assertEqual(result, 22)
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