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71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
# Copyright The OpenTelemetry Authors
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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 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 os
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import unittest
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import sqlalchemy
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from opentelemetry import trace
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from opentelemetry.instrumentation.sqlalchemy import SQLAlchemyInstrumentor
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from opentelemetry.test.test_base import TestBase
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POSTGRES_CONFIG = {
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"host": "127.0.0.1",
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"port": int(os.getenv("TEST_POSTGRES_PORT", "5432")),
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"user": os.getenv("TEST_POSTGRES_USER", "testuser"),
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"password": os.getenv("TEST_POSTGRES_PASSWORD", "testpassword"),
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"dbname": os.getenv("TEST_POSTGRES_DB", "opentelemetry-tests"),
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}
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class SQLAlchemyInstrumentTestCase(TestBase):
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"""TestCase that checks if the engine is properly traced
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when the `instrument()` method is used.
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"""
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def setUp(self):
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# create a traced engine with the given arguments
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SQLAlchemyInstrumentor().instrument()
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dsn = (
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"postgresql://%(user)s:%(password)s@%(host)s:%(port)s/%(dbname)s"
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% POSTGRES_CONFIG
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)
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self.engine = sqlalchemy.create_engine(dsn)
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# prepare a connection
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self.conn = self.engine.connect()
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super().setUp()
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def tearDown(self):
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# clear the database and dispose the engine
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self.conn.close()
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self.engine.dispose()
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SQLAlchemyInstrumentor().uninstrument()
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def test_engine_traced(self):
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# ensures that the engine is traced
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rows = self.conn.execute("SELECT 1").fetchall()
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self.assertEqual(len(rows), 1)
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traces = self.memory_exporter.get_finished_spans()
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# trace composition
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self.assertEqual(len(traces), 1)
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span = traces[0]
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# check subset of span fields
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self.assertEqual(span.name, "postgres.query")
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self.assertEqual(span.attributes.get("service"), "postgres")
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self.assertIs(span.status.status_code, trace.status.StatusCode.UNSET)
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self.assertGreater((span.end_time - span.start_time), 0)
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