deb-mistral/mistral/tests/unit/test_expressions.py
Anastasia Kuznetsova bdd2d6a629 Move base.py and config.py under unit/ folder
base.py and config.py files are used only in unit tests, but
now they are located near unit and functional tests folder, so
it seems that they are used in functional tests too.

Change-Id: Iedefb76a065d3155065be8e2a3a11bcf4b9dc69d
2015-11-18 15:11:23 +03:00

330 lines
9.9 KiB
Python

# Copyright 2013 - Mirantis, Inc.
# Copyright 2015 - StackStorm, 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 mistral import exceptions as exc
from mistral import expressions as expr
from mistral.tests.unit import base
DATA = {
"server": {
"id": "03ea824a-aa24-4105-9131-66c48ae54acf",
"name": "cloud-fedora",
"status": "ACTIVE"
},
"status": "OK"
}
SERVERS = {
"servers": [
{'name': 'centos'},
{'name': 'ubuntu'},
{'name': 'fedora'}
]
}
class YaqlEvaluatorTest(base.BaseTest):
def setUp(self):
super(YaqlEvaluatorTest, self).setUp()
self._evaluator = expr.YAQLEvaluator()
def test_expression_result(self):
res = self._evaluator.evaluate('$.server', DATA)
self.assertEqual({
'id': "03ea824a-aa24-4105-9131-66c48ae54acf",
'name': 'cloud-fedora',
'status': 'ACTIVE'
}, res)
res = self._evaluator.evaluate('$.server.id', DATA)
self.assertEqual('03ea824a-aa24-4105-9131-66c48ae54acf', res)
res = self._evaluator.evaluate("$.server.status = 'ACTIVE'", DATA)
self.assertTrue(res)
def test_wrong_expression(self):
res = self._evaluator.evaluate("$.status = 'Invalid value'", DATA)
self.assertFalse(res)
self.assertRaises(
exc.YaqlEvaluationException,
self._evaluator.evaluate,
'$.wrong_key',
DATA
)
expression_str = 'invalid_expression_string'
res = self._evaluator.evaluate(expression_str, DATA)
self.assertEqual(expression_str, res)
def test_select_result(self):
res = self._evaluator.evaluate(
'$.servers.where($.name = ubuntu)',
SERVERS
)
item = list(res)[0]
self.assertEqual({'name': 'ubuntu'}, item)
def test_function_string(self):
self.assertEqual('3', self._evaluator.evaluate('str($)', '3'))
self.assertEqual('3', self._evaluator.evaluate('str($)', 3))
def test_function_len(self):
self.assertEqual(3, self._evaluator.evaluate('len($)', 'hey'))
data = [{'some': 'thing'}]
self.assertEqual(
1,
self._evaluator.evaluate('$.where($.some = thing).len()', data)
)
def test_validate(self):
self._evaluator.validate('abc')
self._evaluator.validate('1')
self._evaluator.validate('1 + 2')
self._evaluator.validate('$.a1')
self._evaluator.validate('$.a1 * $.a2')
def test_validate_failed(self):
self.assertRaises(exc.YaqlEvaluationException,
self._evaluator.validate,
'*')
self.assertRaises(exc.YaqlEvaluationException,
self._evaluator.validate,
[1, 2, 3])
self.assertRaises(exc.YaqlEvaluationException,
self._evaluator.validate,
{'a': 1})
def test_json_pp(self):
self.assertEqual('"3"', self._evaluator.evaluate('json_pp($)', '3'))
self.assertEqual('3', self._evaluator.evaluate('json_pp($)', 3))
self.assertEqual(
'[\n 1,\n 2\n]',
self._evaluator.evaluate('json_pp($)', [1, 2])
)
self.assertEqual(
'{\n "a": "b"\n}',
self._evaluator.evaluate('json_pp($)', {'a': 'b'})
)
self.assertEqual(
'"Mistral\nis\nawesome"',
self._evaluator.evaluate(
'json_pp($)', '\n'.join(['Mistral', 'is', 'awesome'])
)
)
class InlineYAQLEvaluatorTest(base.BaseTest):
def setUp(self):
super(InlineYAQLEvaluatorTest, self).setUp()
self._evaluator = expr.InlineYAQLEvaluator()
def test_multiple_placeholders(self):
expr_str = """
Statistics for tenant "<% $.project_id %>"
Number of virtual machines: <% $.vm_count %>
Number of active virtual machines: <% $.active_vm_count %>
Number of networks: <% $.net_count %>
-- Sincerely, Mistral Team.
"""
result = self._evaluator.evaluate(
expr_str,
{
'project_id': '1-2-3-4',
'vm_count': 28,
'active_vm_count': 0,
'net_count': 1
}
)
expected_result = """
Statistics for tenant "1-2-3-4"
Number of virtual machines: 28
Number of active virtual machines: 0
Number of networks: 1
-- Sincerely, Mistral Team.
"""
self.assertEqual(expected_result, result)
def test_function_string(self):
self.assertEqual('3', self._evaluator.evaluate('<% str($) %>', '3'))
self.assertEqual('3', self._evaluator.evaluate('<% str($) %>', 3))
def test_validate(self):
self._evaluator.validate('There is no expression.')
self._evaluator.validate('<% abc %>')
self._evaluator.validate('<% 1 %>')
self._evaluator.validate('<% 1 + 2 %>')
self._evaluator.validate('<% $.a1 %>')
self._evaluator.validate('<% $.a1 * $.a2 %>')
self._evaluator.validate('<% $.a1 %> is <% $.a2 %>')
self._evaluator.validate('The value is <% $.a1 %>.')
def test_validate_failed(self):
self.assertRaises(exc.YaqlEvaluationException,
self._evaluator.validate,
'The value is <% * %>.')
self.assertRaises(exc.YaqlEvaluationException,
self._evaluator.validate,
[1, 2, 3])
self.assertRaises(exc.YaqlEvaluationException,
self._evaluator.validate,
{'a': 1})
class ExpressionsTest(base.BaseTest):
def test_evaluate_complex_expressions(self):
data = {
'a': 1,
'b': 2,
'c': 3,
'd': True,
'e': False,
'f': 10.1,
'g': 10,
'h': [1, 2, 3, 4, 5],
'i': 'We are OpenStack!',
'j': 'World',
'k': 'Mistral',
'l': 'awesome',
'm': 'the way we roll'
}
test_cases = [
('<% $.a + $.b * $.c %>', 7),
('<%($.a + $.b) * $.c %>', 9),
('<% $.d and $.e %>', False),
('<% $.f > $.g %>', True),
('<% $.h.len() >= 5 %>', True),
('<% $.h.len() >= $.b + $.c %>', True),
('<% 100 in $.h %>', False),
('<% $.a in $.h%>', True),
('<% ''OpenStack'' in $.i %>', True),
('Hello, <% $.j %>!', 'Hello, World!'),
('<% $.k %> is <% $.l %>!', 'Mistral is awesome!'),
('This is <% $.m %>.', 'This is the way we roll.'),
('<% 1 + 1 = 3 %>', False)
]
for expression, expected in test_cases:
actual = expr.evaluate_recursively(expression, data)
self.assertEqual(expected, actual)
def test_evaluate_recursively(self):
task_spec_dict = {
'parameters': {
'p1': 'My string',
'p2': '<% $.param2 %>',
'p3': ''
},
'publish': {
'new_key11': 'new_key1'
}
}
modified_task = expr.evaluate_recursively(
task_spec_dict,
{'param2': 'val32'}
)
self.assertDictEqual(
{
'parameters': {
'p1': 'My string',
'p2': 'val32',
'p3': ''
},
'publish': {
'new_key11': 'new_key1'
}
},
modified_task
)
def test_evaluate_recursively_arbitrary_dict(self):
context = {
"auth_token": "123",
"project_id": "mistral"
}
data = {
"parameters": {
"parameter1": {
"name1": "<% $.auth_token %>",
"name2": "val_name2"
},
"param2": [
"var1",
"var2",
"/servers/<% $.project_id %>/bla"
]
},
"token": "<% $.auth_token %>"
}
applied = expr.evaluate_recursively(data, context)
self.assertDictEqual(
{
"parameters": {
"parameter1": {
"name1": "123",
"name2": "val_name2"
},
"param2": ["var1", "var2", "/servers/mistral/bla"]
},
"token": "123"
},
applied
)
def test_evaluate_recursively_environment(self):
environment = {
'host': 'vm1234.example.com',
'db': 'test',
'timeout': 600,
'verbose': True,
'__actions': {
'std.sql': {
'conn': 'mysql://admin:secrete@<% env().host %>'
'/<% env().db %>'
}
}
}
context = {
'__env': environment
}
defaults = context['__env']['__actions']['std.sql']
applied = expr.evaluate_recursively(defaults, context)
expected = 'mysql://admin:secrete@vm1234.example.com/test'
self.assertEqual(expected, applied['conn'])