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test_scm_app_http_chunking.py
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/ rhodecode / tests / lib / middleware / utils / test_scm_app_http_chunking.py
project: added all source files and assets
r1 # -*- coding: utf-8 -*-
license: updated copyright year to 2017
r1271 # Copyright (C) 2016-2017 RhodeCode GmbH
project: added all source files and assets
r1 #
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/
"""
Checking the chunked data transfer via HTTP
"""
import os
import time
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subprocess: Change all imports from `subprocess` -> `subprocess32`
r1007 import subprocess32
project: added all source files and assets
r1
import pytest
import requests
from rhodecode.lib.middleware.utils import scm_app_http
from rhodecode.tests.utils import wait_for_url
def test_does_chunked_end_to_end_transfer(scm_app):
response = requests.post(scm_app, data='', stream=True)
assert response.headers['Transfer-Encoding'] == 'chunked'
times = [time.time() for chunk in response.raw.read_chunked()]
assert times[1] - times[0] > 0.1, "Chunks arrived at the same time"
@pytest.fixture
def echo_app_chunking(request, available_port_factory):
"""
Run the EchoApp via Waitress in a subprocess.
Return the URL endpoint to reach the app.
"""
port = available_port_factory()
command = (
'waitress-serve --send-bytes 1 --port {port} --call '
'rhodecode.tests.lib.middleware.utils.test_scm_app_http_chunking'
':create_echo_app')
command = command.format(port=port)
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subprocess: Change all imports from `subprocess` -> `subprocess32`
r1007 proc = subprocess32.Popen(command.split(' '), bufsize=0)
project: added all source files and assets
r1 echo_app_url = 'http://localhost:' + str(port)
@request.addfinalizer
def stop_echo_app():
proc.kill()
return echo_app_url
@pytest.fixture
def scm_app(request, available_port_factory, echo_app_chunking):
"""
Run the scm_app in Waitress.
Returns the URL endpoint where this app can be reached.
"""
port = available_port_factory()
command = (
'waitress-serve --send-bytes 1 --port {port} --call '
'rhodecode.tests.lib.middleware.utils.test_scm_app_http_chunking'
':create_scm_app')
command = command.format(port=port)
env = os.environ.copy()
env["RC_ECHO_URL"] = echo_app_chunking
Martin Bornhold
subprocess: Change all imports from `subprocess` -> `subprocess32`
r1007 proc = subprocess32.Popen(command.split(' '), bufsize=0, env=env)
project: added all source files and assets
r1 scm_app_url = 'http://localhost:' + str(port)
wait_for_url(scm_app_url)
@request.addfinalizer
def stop_echo_app():
proc.kill()
return scm_app_url
class EchoApp(object):
"""
Stub WSGI application which returns a chunked response to every request.
"""
def __init__(self, repo_path, repo_name, config):
self._repo_path = repo_path
def __call__(self, environ, start_response):
environ['wsgi.input'].read()
status = '200 OK'
headers = []
start_response(status, headers)
return result_generator()
def result_generator():
"""
Simulate chunked results.
The intended usage is to simulate a chunked response as we would get it
out of a vcs operation during a call to "hg clone".
"""
yield 'waiting 2 seconds'
# Wait long enough so that the first chunk can go out
time.sleep(2)
yield 'final chunk'
# Another small wait, otherwise they go together
time.sleep(0.1)
def create_echo_app():
"""
Create EchoApp filled with stub data.
"""
return EchoApp('stub_path', 'repo_name', {})
def create_scm_app():
"""
Create a scm_app hooked up to speak to EchoApp.
"""
echo_app_url = os.environ["RC_ECHO_URL"]
return scm_app_http.VcsHttpProxy(
Martin Bornhold
vcs: Do not pass the backend key into the scm app instances....
r951 echo_app_url, 'stub_path', 'stub_name', None)