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# Copyright (c) 2015 Hewlett-Packard Development Company, L.P. (HP)
#
# 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 re
import subprocess
import sys
try:
# python 2
from urllib2 import urlopen
except ImportError:
# python 3
from urllib.request import urlopen
from pbr.tests import base
class TestWsgiScripts(base.BaseTestCase):
cmd_names = ('pbr_test_wsgi', 'pbr_test_wsgi_with_class')
def _get_path(self):
if os.path.isdir("%s/lib64" % self.temp_dir):
path = "%s/lib64" % self.temp_dir
elif os.path.isdir("%s/lib" % self.temp_dir):
path = "%s/lib" % self.temp_dir
elif os.path.isdir("%s/site-packages" % self.temp_dir):
return ".:%s/site-packages" % self.temp_dir
else:
raise Exception("Could not determine path for test")
return ".:%s/python%s.%s/site-packages" % (
path,
sys.version_info[0],
sys.version_info[1])
def test_wsgi_script_install(self):
"""Test that we install a non-pkg-resources wsgi script."""
if os.name == 'nt':
self.skipTest('Windows support is passthrough')
stdout, _, return_code = self.run_setup(
'install', '--prefix=%s' % self.temp_dir)
self._check_wsgi_install_content(stdout)
def test_wsgi_script_run(self):
"""Test that we install a runnable wsgi script.
This test actually attempts to start and interact with the
wsgi script in question to demonstrate that it's a working
wsgi script using simple server.
"""
self.skipTest('Not working on Debian')
if os.name == 'nt':
self.skipTest('Windows support is passthrough')
stdout, _, return_code = self.run_setup(
'install', '--prefix=%s' % self.temp_dir)
self._check_wsgi_install_content(stdout)
# Live test run the scripts and see that they respond to wsgi
# requests.
for cmd_name in self.cmd_names:
self._test_wsgi(cmd_name, b'Hello World')
def _test_wsgi(self, cmd_name, output, extra_args=None):
cmd = os.path.join(self.temp_dir, 'bin', cmd_name)
print("Running %s -p 0" % cmd)
popen_cmd = [cmd, '-p', '0']
if extra_args:
popen_cmd.extend(extra_args)
env = {'PYTHONPATH': self._get_path()}
p = subprocess.Popen(popen_cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, cwd=self.temp_dir,
env=env)
self.addCleanup(p.kill)
stdoutdata = p.stdout.readline() # ****...
stdoutdata = p.stdout.readline() # STARTING test server...
self.assertIn(
b"STARTING test server pbr_testpackage.wsgi",
stdoutdata)
stdoutdata = p.stdout.readline() # Available at ...
print(stdoutdata)
m = re.search(b'(http://[^:]+:\d+)/', stdoutdata)
self.assertIsNotNone(m, "Regex failed to match on %s" % stdoutdata)
stdoutdata = p.stdout.readline() # DANGER! ...
self.assertIn(
b"DANGER! For testing only, do not use in production",
stdoutdata)
stdoutdata = p.stdout.readline() # ***...
f = urlopen(m.group(1).decode('utf-8'))
self.assertEqual(output, f.read())
# Request again so that the application can force stderr.flush(),
# otherwise the log is buffered and the next readline() will hang.
urlopen(m.group(1).decode('utf-8'))
stdoutdata = p.stderr.readline()
# we should have logged an HTTP request, return code 200, that
# returned the right amount of bytes
status = '"GET / HTTP/1.1" 200 %d' % len(output)
self.assertIn(status.encode('utf-8'), stdoutdata)
def _check_wsgi_install_content(self, install_stdout):
for cmd_name in self.cmd_names:
install_txt = 'Installing %s script to %s' % (cmd_name,
self.temp_dir)
self.assertIn(install_txt, install_stdout)
cmd_filename = os.path.join(self.temp_dir, 'bin', cmd_name)
script_txt = open(cmd_filename, 'r').read()
self.assertNotIn('pkg_resources', script_txt)
main_block = """if __name__ == "__main__":
import argparse
import socket
import sys
import wsgiref.simple_server as wss"""
if cmd_name == 'pbr_test_wsgi':
app_name = "main"
else:
app_name = "WSGI.app"
starting_block = ("STARTING test server pbr_testpackage.wsgi."
"%s" % app_name)
else_block = """else:
application = None"""
self.assertIn(main_block, script_txt)
self.assertIn(starting_block, script_txt)
self.assertIn(else_block, script_txt)
def test_with_argument(self):
self.skipTest('Not working on Debian')
if os.name == 'nt':
self.skipTest('Windows support is passthrough')
stdout, _, return_code = self.run_setup(
'install', '--prefix=%s' % self.temp_dir)
self._test_wsgi('pbr_test_wsgi', b'Foo Bar', ["--", "-c", "Foo Bar"])
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