tests/utils/test_serve_logs.py

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import os
import unittest
from multiprocessing import Process
from os.path import basename
from tempfile import NamedTemporaryFile
from time import sleep

import requests

from airflow.configuration import conf
from airflow.utils.serve_logs import serve_logs

LOG_DATA = "Airflow log data" * 20


class TestServeLogs(unittest.TestCase):
    def test_should_serve_file(self):
        log_dir = os.path.expanduser(conf.get('logging', 'BASE_LOG_FOLDER'))
        log_port = conf.get('celery', 'WORKER_LOG_SERVER_PORT')
        with NamedTemporaryFile(dir=log_dir) as f:
            f.write(LOG_DATA.encode())
            f.flush()
            sub_proc = Process(target=serve_logs)
            sub_proc.start()
            sleep(1)
            log_url = f"http://localhost:{log_port}/log/{basename(f.name)}"
            self.assertEqual(LOG_DATA, requests.get(log_url).content.decode())
            sub_proc.terminate()