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# Copyright 2014 Mirantis Inc.
# All Rights Reserved.
#
# 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.
import contextlib
import mock
from osprofiler import sqlalchemy
from osprofiler.tests import test
class SqlalchemyTracingTestCase(test.TestCase):
@mock.patch("osprofiler.sqlalchemy.profiler")
def test_before_execute(self, mock_profiler):
handler = sqlalchemy._before_cursor_execute("sql")
handler(mock.MagicMock(), 1, 2, 3, 4, 5)
expected_info = {"db": {"statement": 2, "params": 3}}
mock_profiler.start.assert_called_once_with("sql", info=expected_info)
@mock.patch("osprofiler.sqlalchemy.profiler")
def test_after_execute(self, mock_profiler):
handler = sqlalchemy._after_cursor_execute()
handler(mock.MagicMock(), 1, 2, 3, 4, 5)
mock_profiler.stop.assert_called_once_with()
@mock.patch("osprofiler.sqlalchemy._before_cursor_execute")
@mock.patch("osprofiler.sqlalchemy._after_cursor_execute")
def test_add_tracing(self, mock_after_exc, mock_before_exc):
sa = mock.MagicMock()
engine = mock.MagicMock()
mock_before_exc.return_value = "before"
mock_after_exc.return_value = "after"
sqlalchemy.add_tracing(sa, engine, "sql")
mock_before_exc.assert_called_once_with("sql")
mock_after_exc.assert_called_once_with()
expected_calls = [
mock.call(engine, "before_cursor_execute", "before"),
mock.call(engine, "after_cursor_execute", "after")
]
self.assertEqual(sa.event.listen.call_args_list, expected_calls)
@mock.patch("osprofiler.sqlalchemy._before_cursor_execute")
@mock.patch("osprofiler.sqlalchemy._after_cursor_execute")
def test_wrap_session(self, mock_after_exc, mock_before_exc):
sa = mock.MagicMock()
@contextlib.contextmanager
def _session():
session = mock.MagicMock()
# current engine object stored within the session
session.bind = mock.MagicMock()
session.bind.traced = None
yield session
mock_before_exc.return_value = "before"
mock_after_exc.return_value = "after"
session = sqlalchemy.wrap_session(sa, _session())
with session as sess:
pass
mock_before_exc.assert_called_once_with("db")
mock_after_exc.assert_called_once_with()
expected_calls = [
mock.call(sess.bind, "before_cursor_execute", "before"),
mock.call(sess.bind, "after_cursor_execute", "after")
]
self.assertEqual(sa.event.listen.call_args_list, expected_calls)
@mock.patch("osprofiler.sqlalchemy._before_cursor_execute")
@mock.patch("osprofiler.sqlalchemy._after_cursor_execute")
def test_disable_and_enable(self, mock_after_exc, mock_before_exc):
sqlalchemy.disable()
sa = mock.MagicMock()
engine = mock.MagicMock()
sqlalchemy.add_tracing(sa, engine, "sql")
self.assertFalse(mock_after_exc.called)
self.assertFalse(mock_before_exc.called)
sqlalchemy.enable()
sqlalchemy.add_tracing(sa, engine, "sql")
self.assertTrue(mock_after_exc.called)
self.assertTrue(mock_before_exc.called)
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