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import unittest
from urllib3.connectionpool import connection_from_url, HTTPConnectionPool
from urllib3.util import get_host, make_headers
from urllib3.exceptions import EmptyPoolError, LocationParseError
class TestConnectionPool(unittest.TestCase):
def test_get_host(self):
url_host_map = {
'http://google.com/mail': ('http', 'google.com', None),
'http://google.com/mail/': ('http', 'google.com', None),
'google.com/mail': ('http', 'google.com', None),
'http://google.com/': ('http', 'google.com', None),
'http://google.com': ('http', 'google.com', None),
'http://www.google.com': ('http', 'www.google.com', None),
'http://mail.google.com': ('http', 'mail.google.com', None),
'http://google.com:8000/mail/': ('http', 'google.com', 8000),
'http://google.com:8000': ('http', 'google.com', 8000),
'https://google.com': ('https', 'google.com', None),
'https://google.com:8000': ('https', 'google.com', 8000),
'http://user:password@127.0.0.1:1234': ('http', '127.0.0.1', 1234),
}
for url, expected_host in url_host_map.items():
returned_host = get_host(url)
self.assertEquals(returned_host, expected_host)
def test_same_host(self):
same_host = [
('http://google.com/', '/'),
('http://google.com/', 'http://google.com/'),
('http://google.com/', 'http://google.com'),
('http://google.com/', 'http://google.com/abra/cadabra'),
('http://google.com:42/', 'http://google.com:42/abracadabra'),
]
for a, b in same_host:
c = connection_from_url(a)
self.assertTrue(c.is_same_host(b), "%s =? %s" % (a, b))
not_same_host = [
('https://google.com/', 'http://google.com/'),
('http://google.com/', 'https://google.com/'),
('http://yahoo.com/', 'http://google.com/'),
('http://google.com:42', 'https://google.com/abracadabra'),
('http://google.com', 'https://google.net/'),
]
for a, b in not_same_host:
c = connection_from_url(a)
self.assertFalse(c.is_same_host(b), "%s =? %s" % (a, b))
def test_invalid_host(self):
# TODO: Add more tests
invalid_host = [
'http://google.com:foo',
]
for location in invalid_host:
self.assertRaises(LocationParseError, get_host, location)
def test_make_headers(self):
self.assertEqual(
make_headers(accept_encoding=True),
{'accept-encoding': 'gzip,deflate'})
self.assertEqual(
make_headers(accept_encoding='foo,bar'),
{'accept-encoding': 'foo,bar'})
self.assertEqual(
make_headers(accept_encoding=['foo', 'bar']),
{'accept-encoding': 'foo,bar'})
self.assertEqual(
make_headers(accept_encoding=True, user_agent='banana'),
{'accept-encoding': 'gzip,deflate', 'user-agent': 'banana'})
self.assertEqual(
make_headers(user_agent='banana'),
{'user-agent': 'banana'})
self.assertEqual(
make_headers(keep_alive=True),
{'connection': 'keep-alive'})
self.assertEqual(
make_headers(basic_auth='foo:bar'),
{'authorization': 'Basic Zm9vOmJhcg=='})
def test_max_connections(self):
pool = HTTPConnectionPool(host='localhost', maxsize=1, block=True)
pool._get_conn(timeout=0.01)
try:
pool._get_conn(timeout=0.01)
self.fail("Managed to get a connection without EmptyPoolError")
except EmptyPoolError:
pass
try:
pool.request('GET', '/', pool_timeout=0.01)
self.fail("Managed to get a connection without EmptyPoolError")
except EmptyPoolError:
pass
self.assertEqual(pool.num_connections, 1)
def test_pool_edgecases(self):
pool = HTTPConnectionPool(host='localhost', maxsize=1, block=False)
conn1 = pool._get_conn()
conn2 = pool._get_conn() # New because block=False
pool._put_conn(conn1)
pool._put_conn(conn2) # Should be discarded
self.assertEqual(conn1, pool._get_conn())
self.assertNotEqual(conn2, pool._get_conn())
self.assertEqual(pool.num_connections, 3)
def test_exception_str(self):
self.assertEqual(
str(EmptyPoolError(HTTPConnectionPool(host='localhost'), "Test.")),
"HTTPConnectionPool(host='localhost', port=None): Test.")
if __name__ == '__main__':
unittest.main()
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