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# 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 os
import subprocess
import sys
import unittest
from time import sleep
import requests
from requests.adapters import HTTPAdapter
from requests.packages.urllib3.util.retry import ( # pylint: disable=import-error
Retry,
)
class TestFlask(unittest.TestCase):
def test_flask(self):
dirpath = os.path.dirname(os.path.realpath(__file__))
server_script = f"{dirpath}/../flask_example.py"
server = subprocess.Popen( # pylint: disable=consider-using-with
[sys.executable, server_script],
stdout=subprocess.PIPE,
)
retry_strategy = Retry(total=10, backoff_factor=1)
adapter = HTTPAdapter(max_retries=retry_strategy)
http = requests.Session()
http.mount("http://", adapter)
try:
result = http.get("http://localhost:5000")
self.assertEqual(result.status_code, 200)
sleep(5)
finally:
server.terminate()
output = str(server.stdout.read())
self.assertIn('"name": "GET"', output)
self.assertIn('"name": "example-request"', output)
self.assertIn('"name": "GET /"', output)
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