Hi all!
I'm working in a little Python exercise with testing since the beginning. So
far I'm with my first end to end test (not even finished yet) trying to:
1) Launch a development web server linked to a demo app that just returns
'Hello World!'
2) Make a GET request successfully
I can't understand very well what's happening. It seems that the main thread
gets blocked listening to the web server. My intent was to spawn another
process for the server independent of the test. Obviously I'm doing something
wrong. I've made several guesses commenting pieces of code (tearDown method for
example) but I didn't manage to solve the problem(s).
I'm running the test through PyCharm. Python version = 3.4.3
Here it's the code:
test_forecast_end_to_end.py
===========================
import unittest
from tests.end_to_end.forecastserver import ForecastServer
import src.forecast.webservice as webservice
import requests
class TestForecastEndToEnd(unittest.TestCase):
def setUp(self):
# Start the forecast server
self.server = ForecastServer()
self.server.start(webservice.app)
def tearDown(self):
# Stop the forecast server
self.server.stop()
def test_webservice_receives_a_request(self):
response = requests.get('http://localhost:8000')
print(response.text)
if __name__ == '__main__':
unittest.main()
forecastserver.py
=================
from wsgiref.simple_server import make_server
import multiprocessing
class ForecastServer:
def __init__(self):
self._httpd_process = None
def start(self, webservice):
if not self._httpd_process:
httpd = make_server('localhost', 8000, webservice)
self._httpd_process = multiprocessing.Process(
target=httpd.serve_forever)
self._httpd_process.start()
def stop(self):
if self._httpd_process:
self._httpd_process.join()
self._httpd_process.terminate()
del self._httpd_process
webservice.py
=============
def app(environ, start_response):
status = '200 OK'
headers = [('Content-type', 'text/plain')]
start_response(status, headers)
return ['Hello World!']
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