You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
232 lines
9.3 KiB
232 lines
9.3 KiB
3 years ago
|
import unittest
|
||
|
|
from test import support
|
||
|
|
from test.support import os_helper
|
||
|
|
from test.support import socket_helper
|
||
|
|
|
||
|
|
import contextlib
|
||
|
|
import socket
|
||
|
|
import urllib.parse
|
||
|
|
import urllib.request
|
||
|
|
import os
|
||
|
|
import email.message
|
||
|
|
import time
|
||
|
|
|
||
|
|
|
||
|
|
support.requires('network')
|
||
|
|
|
||
|
|
|
||
|
|
class URLTimeoutTest(unittest.TestCase):
|
||
|
|
# XXX this test doesn't seem to test anything useful.
|
||
|
|
|
||
|
|
def setUp(self):
|
||
|
|
socket.setdefaulttimeout(support.INTERNET_TIMEOUT)
|
||
|
|
|
||
|
|
def tearDown(self):
|
||
|
|
socket.setdefaulttimeout(None)
|
||
|
|
|
||
|
|
def testURLread(self):
|
||
|
|
# clear _opener global variable
|
||
|
|
self.addCleanup(urllib.request.urlcleanup)
|
||
|
|
|
||
|
|
domain = urllib.parse.urlparse(support.TEST_HTTP_URL).netloc
|
||
|
|
with socket_helper.transient_internet(domain):
|
||
|
|
f = urllib.request.urlopen(support.TEST_HTTP_URL)
|
||
|
|
f.read()
|
||
|
|
|
||
|
|
|
||
|
|
class urlopenNetworkTests(unittest.TestCase):
|
||
|
|
"""Tests urllib.request.urlopen using the network.
|
||
|
|
|
||
|
|
These tests are not exhaustive. Assuming that testing using files does a
|
||
|
|
good job overall of some of the basic interface features. There are no
|
||
|
|
tests exercising the optional 'data' and 'proxies' arguments. No tests
|
||
|
|
for transparent redirection have been written.
|
||
|
|
|
||
|
|
setUp is not used for always constructing a connection to
|
||
|
|
http://www.pythontest.net/ since there a few tests that don't use that address
|
||
|
|
and making a connection is expensive enough to warrant minimizing unneeded
|
||
|
|
connections.
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
url = 'http://www.pythontest.net/'
|
||
|
|
|
||
|
|
def setUp(self):
|
||
|
|
# clear _opener global variable
|
||
|
|
self.addCleanup(urllib.request.urlcleanup)
|
||
|
|
|
||
|
|
@contextlib.contextmanager
|
||
|
|
def urlopen(self, *args, **kwargs):
|
||
|
|
resource = args[0]
|
||
|
|
with socket_helper.transient_internet(resource):
|
||
|
|
r = urllib.request.urlopen(*args, **kwargs)
|
||
|
|
try:
|
||
|
|
yield r
|
||
|
|
finally:
|
||
|
|
r.close()
|
||
|
|
|
||
|
|
def test_basic(self):
|
||
|
|
# Simple test expected to pass.
|
||
|
|
with self.urlopen(self.url) as open_url:
|
||
|
|
for attr in ("read", "readline", "readlines", "fileno", "close",
|
||
|
|
"info", "geturl"):
|
||
|
|
self.assertTrue(hasattr(open_url, attr), "object returned from "
|
||
|
|
"urlopen lacks the %s attribute" % attr)
|
||
|
|
self.assertTrue(open_url.read(), "calling 'read' failed")
|
||
|
|
|
||
|
|
def test_readlines(self):
|
||
|
|
# Test both readline and readlines.
|
||
|
|
with self.urlopen(self.url) as open_url:
|
||
|
|
self.assertIsInstance(open_url.readline(), bytes,
|
||
|
|
"readline did not return a string")
|
||
|
|
self.assertIsInstance(open_url.readlines(), list,
|
||
|
|
"readlines did not return a list")
|
||
|
|
|
||
|
|
def test_info(self):
|
||
|
|
# Test 'info'.
|
||
|
|
with self.urlopen(self.url) as open_url:
|
||
|
|
info_obj = open_url.info()
|
||
|
|
self.assertIsInstance(info_obj, email.message.Message,
|
||
|
|
"object returned by 'info' is not an "
|
||
|
|
"instance of email.message.Message")
|
||
|
|
self.assertEqual(info_obj.get_content_subtype(), "html")
|
||
|
|
|
||
|
|
def test_geturl(self):
|
||
|
|
# Make sure same URL as opened is returned by geturl.
|
||
|
|
with self.urlopen(self.url) as open_url:
|
||
|
|
gotten_url = open_url.geturl()
|
||
|
|
self.assertEqual(gotten_url, self.url)
|
||
|
|
|
||
|
|
def test_getcode(self):
|
||
|
|
# test getcode() with the fancy opener to get 404 error codes
|
||
|
|
URL = self.url + "XXXinvalidXXX"
|
||
|
|
with socket_helper.transient_internet(URL):
|
||
|
|
with self.assertWarns(DeprecationWarning):
|
||
|
|
open_url = urllib.request.FancyURLopener().open(URL)
|
||
|
|
try:
|
||
|
|
code = open_url.getcode()
|
||
|
|
finally:
|
||
|
|
open_url.close()
|
||
|
|
self.assertEqual(code, 404)
|
||
|
|
|
||
|
|
def test_bad_address(self):
|
||
|
|
# Make sure proper exception is raised when connecting to a bogus
|
||
|
|
# address.
|
||
|
|
|
||
|
|
# Given that both VeriSign and various ISPs have in
|
||
|
|
# the past or are presently hijacking various invalid
|
||
|
|
# domain name requests in an attempt to boost traffic
|
||
|
|
# to their own sites, finding a domain name to use
|
||
|
|
# for this test is difficult. RFC2606 leads one to
|
||
|
|
# believe that '.invalid' should work, but experience
|
||
|
|
# seemed to indicate otherwise. Single character
|
||
|
|
# TLDs are likely to remain invalid, so this seems to
|
||
|
|
# be the best choice. The trailing '.' prevents a
|
||
|
|
# related problem: The normal DNS resolver appends
|
||
|
|
# the domain names from the search path if there is
|
||
|
|
# no '.' the end and, and if one of those domains
|
||
|
|
# implements a '*' rule a result is returned.
|
||
|
|
# However, none of this will prevent the test from
|
||
|
|
# failing if the ISP hijacks all invalid domain
|
||
|
|
# requests. The real solution would be to be able to
|
||
|
|
# parameterize the framework with a mock resolver.
|
||
|
|
bogus_domain = "sadflkjsasf.i.nvali.d."
|
||
|
|
try:
|
||
|
|
socket.gethostbyname(bogus_domain)
|
||
|
|
except OSError:
|
||
|
|
# socket.gaierror is too narrow, since getaddrinfo() may also
|
||
|
|
# fail with EAI_SYSTEM and ETIMEDOUT (seen on Ubuntu 13.04),
|
||
|
|
# i.e. Python's TimeoutError.
|
||
|
|
pass
|
||
|
|
else:
|
||
|
|
# This happens with some overzealous DNS providers such as OpenDNS
|
||
|
|
self.skipTest("%r should not resolve for test to work" % bogus_domain)
|
||
|
|
failure_explanation = ('opening an invalid URL did not raise OSError; '
|
||
|
|
'can be caused by a broken DNS server '
|
||
|
|
'(e.g. returns 404 or hijacks page)')
|
||
|
|
with self.assertRaises(OSError, msg=failure_explanation):
|
||
|
|
urllib.request.urlopen("http://{}/".format(bogus_domain))
|
||
|
|
|
||
|
|
|
||
|
|
class urlretrieveNetworkTests(unittest.TestCase):
|
||
|
|
"""Tests urllib.request.urlretrieve using the network."""
|
||
|
|
|
||
|
|
def setUp(self):
|
||
|
|
# remove temporary files created by urlretrieve()
|
||
|
|
self.addCleanup(urllib.request.urlcleanup)
|
||
|
|
|
||
|
|
@contextlib.contextmanager
|
||
|
|
def urlretrieve(self, *args, **kwargs):
|
||
|
|
resource = args[0]
|
||
|
|
with socket_helper.transient_internet(resource):
|
||
|
|
file_location, info = urllib.request.urlretrieve(*args, **kwargs)
|
||
|
|
try:
|
||
|
|
yield file_location, info
|
||
|
|
finally:
|
||
|
|
os_helper.unlink(file_location)
|
||
|
|
|
||
|
|
def test_basic(self):
|
||
|
|
# Test basic functionality.
|
||
|
|
with self.urlretrieve(self.logo) as (file_location, info):
|
||
|
|
self.assertTrue(os.path.exists(file_location), "file location returned by"
|
||
|
|
" urlretrieve is not a valid path")
|
||
|
|
with open(file_location, 'rb') as f:
|
||
|
|
self.assertTrue(f.read(), "reading from the file location returned"
|
||
|
|
" by urlretrieve failed")
|
||
|
|
|
||
|
|
def test_specified_path(self):
|
||
|
|
# Make sure that specifying the location of the file to write to works.
|
||
|
|
with self.urlretrieve(self.logo,
|
||
|
|
os_helper.TESTFN) as (file_location, info):
|
||
|
|
self.assertEqual(file_location, os_helper.TESTFN)
|
||
|
|
self.assertTrue(os.path.exists(file_location))
|
||
|
|
with open(file_location, 'rb') as f:
|
||
|
|
self.assertTrue(f.read(), "reading from temporary file failed")
|
||
|
|
|
||
|
|
def test_header(self):
|
||
|
|
# Make sure header returned as 2nd value from urlretrieve is good.
|
||
|
|
with self.urlretrieve(self.logo) as (file_location, info):
|
||
|
|
self.assertIsInstance(info, email.message.Message,
|
||
|
|
"info is not an instance of email.message.Message")
|
||
|
|
|
||
|
|
logo = "http://www.pythontest.net/"
|
||
|
|
|
||
|
|
def test_data_header(self):
|
||
|
|
with self.urlretrieve(self.logo) as (file_location, fileheaders):
|
||
|
|
datevalue = fileheaders.get('Date')
|
||
|
|
dateformat = '%a, %d %b %Y %H:%M:%S GMT'
|
||
|
|
try:
|
||
|
|
time.strptime(datevalue, dateformat)
|
||
|
|
except ValueError:
|
||
|
|
self.fail('Date value not in %r format' % dateformat)
|
||
|
|
|
||
|
|
def test_reporthook(self):
|
||
|
|
records = []
|
||
|
|
|
||
|
|
def recording_reporthook(blocks, block_size, total_size):
|
||
|
|
records.append((blocks, block_size, total_size))
|
||
|
|
|
||
|
|
with self.urlretrieve(self.logo, reporthook=recording_reporthook) as (
|
||
|
|
file_location, fileheaders):
|
||
|
|
expected_size = int(fileheaders['Content-Length'])
|
||
|
|
|
||
|
|
records_repr = repr(records) # For use in error messages.
|
||
|
|
self.assertGreater(len(records), 1, msg="There should always be two "
|
||
|
|
"calls; the first one before the transfer starts.")
|
||
|
|
self.assertEqual(records[0][0], 0)
|
||
|
|
self.assertGreater(records[0][1], 0,
|
||
|
|
msg="block size can't be 0 in %s" % records_repr)
|
||
|
|
self.assertEqual(records[0][2], expected_size)
|
||
|
|
self.assertEqual(records[-1][2], expected_size)
|
||
|
|
|
||
|
|
block_sizes = {block_size for _, block_size, _ in records}
|
||
|
|
self.assertEqual({records[0][1]}, block_sizes,
|
||
|
|
msg="block sizes in %s must be equal" % records_repr)
|
||
|
|
self.assertGreaterEqual(records[-1][0]*records[0][1], expected_size,
|
||
|
|
msg="number of blocks * block size must be"
|
||
|
|
" >= total size in %s" % records_repr)
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
unittest.main()
|