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Python

# Copyright The OpenTelemetry Authors
#
# 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 flask
from werkzeug.test import Client
from werkzeug.wrappers import Response
from opentelemetry.instrumentation.flask import FlaskInstrumentor
from opentelemetry.test.wsgitestutil import WsgiTestBase
# pylint: disable=import-error
from .base_test import InstrumentationTest
class TestMultiThreading(InstrumentationTest, WsgiTestBase):
def setUp(self):
super().setUp()
FlaskInstrumentor().instrument()
self.app = flask.Flask(__name__)
self._common_initialization()
def tearDown(self):
super().tearDown()
with self.disable_logging():
FlaskInstrumentor().uninstrument()
def test_multithreaded(self):
"""Test that instrumentation tear down does not blow up
when the request thread spawn children threads and the request
context is copied to the children threads
"""
self.app = flask.Flask(__name__)
self.app.route("/multithreaded/<int:count>")(
self._multithreaded_endpoint
)
client = Client(self.app, Response)
count = 5
resp = client.get(f"/multithreaded/{count}")
self.assertEqual(200, resp.status_code)
# Should return the specified number of random integers
self.assertEqual(count, len(resp.text.split(" ")))