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227 lines
8.2 KiB
227 lines
8.2 KiB
import unittest
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from test import test_support
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import socket
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import urllib
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import sys
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import os
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import time
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try:
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import ssl
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except ImportError:
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ssl = None
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here = os.path.dirname(__file__)
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# Self-signed cert file for self-signed.pythontest.net
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CERT_selfsigned_pythontestdotnet = os.path.join(here, 'selfsigned_pythontestdotnet.pem')
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mimetools = test_support.import_module("mimetools", deprecated=True)
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def _open_with_retry(func, host, *args, **kwargs):
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# Connecting to remote hosts is flaky. Make it more robust
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# by retrying the connection several times.
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for i in range(3):
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try:
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return func(host, *args, **kwargs)
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except IOError, last_exc:
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continue
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except:
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raise
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raise last_exc
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class URLTimeoutTest(unittest.TestCase):
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TIMEOUT = 10.0
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def setUp(self):
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socket.setdefaulttimeout(self.TIMEOUT)
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def tearDown(self):
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socket.setdefaulttimeout(None)
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def testURLread(self):
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f = _open_with_retry(urllib.urlopen, "http://www.example.com/")
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x = f.read()
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class urlopenNetworkTests(unittest.TestCase):
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"""Tests urllib.urlopen using the network.
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These tests are not exhaustive. Assuming that testing using files does a
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good job overall of some of the basic interface features. There are no
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tests exercising the optional 'data' and 'proxies' arguments. No tests
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for transparent redirection have been written.
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setUp is not used for always constructing a connection to
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http://www.example.com/ since there a few tests that don't use that address
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and making a connection is expensive enough to warrant minimizing unneeded
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connections.
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"""
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def urlopen(self, *args):
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return _open_with_retry(urllib.urlopen, *args)
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def test_basic(self):
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# Simple test expected to pass.
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open_url = self.urlopen("http://www.example.com/")
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for attr in ("read", "readline", "readlines", "fileno", "close",
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"info", "geturl"):
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self.assertTrue(hasattr(open_url, attr), "object returned from "
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"urlopen lacks the %s attribute" % attr)
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try:
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self.assertTrue(open_url.read(), "calling 'read' failed")
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finally:
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open_url.close()
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def test_readlines(self):
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# Test both readline and readlines.
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open_url = self.urlopen("http://www.example.com/")
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try:
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self.assertIsInstance(open_url.readline(), basestring,
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"readline did not return a string")
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self.assertIsInstance(open_url.readlines(), list,
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"readlines did not return a list")
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finally:
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open_url.close()
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def test_info(self):
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# Test 'info'.
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open_url = self.urlopen("http://www.example.com/")
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try:
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info_obj = open_url.info()
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finally:
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open_url.close()
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self.assertIsInstance(info_obj, mimetools.Message,
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"object returned by 'info' is not an "
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"instance of mimetools.Message")
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self.assertEqual(info_obj.getsubtype(), "html")
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def test_geturl(self):
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# Make sure same URL as opened is returned by geturl.
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URL = "http://www.example.com/"
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open_url = self.urlopen(URL)
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try:
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gotten_url = open_url.geturl()
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finally:
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open_url.close()
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self.assertEqual(gotten_url, URL)
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def test_getcode(self):
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# test getcode() with the fancy opener to get 404 error codes
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URL = "http://www.pythontest.net/XXXinvalidXXX"
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open_url = urllib.FancyURLopener().open(URL)
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try:
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code = open_url.getcode()
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finally:
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open_url.close()
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self.assertEqual(code, 404)
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@unittest.skipIf(sys.platform in ('win32',), 'not appropriate for Windows')
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@unittest.skipUnless(hasattr(os, 'fdopen'), 'os.fdopen not available')
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def test_fileno(self):
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# Make sure fd returned by fileno is valid.
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open_url = self.urlopen("http://www.example.com/")
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fd = open_url.fileno()
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FILE = os.fdopen(fd)
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try:
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self.assertTrue(FILE.read(), "reading from file created using fd "
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"returned by fileno failed")
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finally:
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FILE.close()
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def test_bad_address(self):
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# Make sure proper exception is raised when connecting to a bogus
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# address.
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bogus_domain = "sadflkjsasf.i.nvali.d"
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try:
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socket.gethostbyname(bogus_domain)
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except socket.gaierror:
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pass
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else:
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# This happens with some overzealous DNS providers such as OpenDNS
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self.skipTest("%r should not resolve for test to work" % bogus_domain)
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self.assertRaises(IOError,
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# SF patch 809915: In Sep 2003, VeriSign started
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# highjacking invalid .com and .net addresses to
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# boost traffic to their own site. This test
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# started failing then. One hopes the .invalid
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# domain will be spared to serve its defined
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# purpose.
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# urllib.urlopen, "http://www.sadflkjsasadf.com/")
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urllib.urlopen, "http://sadflkjsasf.i.nvali.d/")
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class urlretrieveNetworkTests(unittest.TestCase):
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"""Tests urllib.urlretrieve using the network."""
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def urlretrieve(self, *args):
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return _open_with_retry(urllib.urlretrieve, *args)
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def test_basic(self):
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# Test basic functionality.
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file_location,info = self.urlretrieve("http://www.example.com/")
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self.assertTrue(os.path.exists(file_location), "file location returned by"
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" urlretrieve is not a valid path")
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FILE = file(file_location)
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try:
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self.assertTrue(FILE.read(), "reading from the file location returned"
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" by urlretrieve failed")
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finally:
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FILE.close()
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os.unlink(file_location)
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def test_specified_path(self):
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# Make sure that specifying the location of the file to write to works.
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file_location,info = self.urlretrieve("http://www.example.com/",
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test_support.TESTFN)
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self.assertEqual(file_location, test_support.TESTFN)
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self.assertTrue(os.path.exists(file_location))
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FILE = file(file_location)
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try:
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self.assertTrue(FILE.read(), "reading from temporary file failed")
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finally:
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FILE.close()
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os.unlink(file_location)
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def test_header(self):
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# Make sure header returned as 2nd value from urlretrieve is good.
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file_location, header = self.urlretrieve("http://www.example.com/")
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os.unlink(file_location)
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self.assertIsInstance(header, mimetools.Message,
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"header is not an instance of mimetools.Message")
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def test_data_header(self):
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logo = "http://www.example.com/"
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file_location, fileheaders = self.urlretrieve(logo)
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os.unlink(file_location)
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datevalue = fileheaders.getheader('Date')
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dateformat = '%a, %d %b %Y %H:%M:%S GMT'
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try:
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time.strptime(datevalue, dateformat)
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except ValueError:
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self.fail('Date value not in %r format', dateformat)
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@unittest.skipIf(ssl is None, "requires ssl")
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class urlopen_HttpsTests(unittest.TestCase):
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def test_context_argument(self):
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context = ssl.create_default_context(cafile=CERT_selfsigned_pythontestdotnet)
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response = urllib.urlopen("https://self-signed.pythontest.net", context=context)
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self.assertIn("Python", response.read())
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def test_main():
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test_support.requires('network')
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with test_support.check_py3k_warnings(
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("urllib.urlopen.. has been removed", DeprecationWarning)):
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test_support.run_unittest(URLTimeoutTest,
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urlopenNetworkTests,
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urlretrieveNetworkTests,
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urlopen_HttpsTests)
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if __name__ == "__main__":
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test_main()
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