def test_connections_arent_released(self):
MAXSIZE = 5
pool = HTTPConnectionPool(self.host, self.port, maxsize=MAXSIZE)
self.assertEqual(pool.pool.qsize(), MAXSIZE)
pool.request('GET', '/', preload_content=False)
self.assertEqual(pool.pool.qsize(), MAXSIZE-1)
def test_bad_connect(self):
pool = HTTPConnectionPool('badhost.invalid', self.port)
try:
pool.request('GET', '/', retries=5)
self.fail("should raise timeout exception here")
except MaxRetryError as e:
self.assertEqual(type(e.reason), NewConnectionError)
def test_connection_error_retries(self):
""" ECONNREFUSED error should raise a connection error, with retries """
port = find_unused_port()
pool = HTTPConnectionPool(self.host, port)
try:
pool.request('GET', '/', retries=Retry(connect=3))
self.fail("Should have failed with a connection error.")
except MaxRetryError as e:
self.assertEqual(type(e.reason), NewConnectionError)
def test_create_connection_timeout(self):
timeout = Timeout(connect=SHORT_TIMEOUT, total=LONG_TIMEOUT)
pool = HTTPConnectionPool(TARPIT_HOST, self.port, timeout=timeout, retries=False)
self.addCleanup(pool.close)
conn = pool._new_conn()
self.assertRaises(
ConnectTimeoutError,
conn.connect,
connect_timeout=timeout.connect_timeout
)
def test_keepalive(self):
pool = HTTPConnectionPool(self.host, self.port, block=True, maxsize=1)
self.addCleanup(pool.close)
r = pool.request('GET', '/keepalive?close=0')
r = pool.request('GET', '/keepalive?close=0')
self.assertEqual(r.status, 200)
self.assertEqual(pool.num_connections, 1)
self.assertEqual(pool.num_requests, 2)
def test_partial_response(self):
pool = HTTPConnectionPool(self.host, self.port, maxsize=1)
self.addCleanup(pool.close)
req_data = {'lol': 'cat'}
resp_data = urlencode(req_data).encode('utf-8')
r = pool.request('GET', '/echo', fields=req_data, preload_content=False)
self.assertEqual(r.read(5), resp_data[:5])
self.assertEqual(r.read(), resp_data[5:])
def test_disable_default_socket_options(self):
"""Test that passing None disables all socket options."""
# This test needs to be here in order to be run. socket.create_connection actually tries
# to connect to the host provided so we need a dummyserver to be running.
pool = HTTPConnectionPool(self.host, self.port, socket_options=None)
conn = pool._new_conn()
conn.connect()
s = conn._sock
using_nagle = s.getsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY) == 0
self.assertTrue(using_nagle)
s.close()
def test_nagle(self):
""" Test that connections have TCP_NODELAY turned on """
# This test needs to be here in order to be run. socket.create_connection actually tries
# to connect to the host provided so we need a dummyserver to be running.
pool = HTTPConnectionPool(self.host, self.port)
self.addCleanup(pool.close)
conn = pool._get_conn()
self.addCleanup(conn.close)
pool._make_request(conn, 'GET', '/')
tcp_nodelay_setting = conn._sock.getsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY)
self.assertTrue(tcp_nodelay_setting)
def test_source_address(self):
for addr, is_ipv6 in VALID_SOURCE_ADDRESSES:
if is_ipv6 and not HAS_IPV6_AND_DNS:
warnings.warn("No IPv6 support: skipping.",
NoIPv6Warning)
continue
pool = HTTPConnectionPool(self.host, self.port,
source_address=addr, retries=False)
self.addCleanup(pool.close)
r = pool.request('GET', '/source_address')
self.assertEqual(r.data, b(addr[0]))
def test_provides_default_host_header(self):
self.start_chunked_handler()
chunks = [b'foo', b'bar', b'', b'bazzzzzzzzzzzzzzzzzzzzzz']
pool = HTTPConnectionPool(self.host, self.port, retries=False)
self.addCleanup(pool.close)
pool.urlopen('GET', '/', chunks)
header_block = self.buffer.split(b'\r\n\r\n', 1)[0].lower()
header_lines = header_block.split(b'\r\n')[1:]
host_headers = [x for x in header_lines if x.startswith(b'host')]
self.assertEqual(len(host_headers), 1)
def test_socket_options(self):
"""Test that connections accept socket options."""
# This test needs to be here in order to be run. socket.create_connection actually tries to
# connect to the host provided so we need a dummyserver to be running.
pool = HTTPConnectionPool(self.host, self.port, socket_options=[
(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
])
conn = pool._new_conn()
conn.connect()
s = conn._sock
using_keepalive = s.getsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE) > 0
self.assertTrue(using_keepalive)
s.close()
def test_connect_timeout(self):
url = '/'
host, port = TARPIT_HOST, 80
timeout = Timeout(connect=SHORT_TIMEOUT)
# Pool-global timeout
pool = HTTPConnectionPool(host, port, timeout=timeout)
self.addCleanup(pool.close)
conn = pool._get_conn()
self.assertRaises(ConnectTimeoutError, pool._make_request, conn, 'GET', url)
# Retries
retries = Retry(connect=0)
self.assertRaises(MaxRetryError, pool.request, 'GET', url, retries=retries)
# Request-specific connection timeouts
big_timeout = Timeout(read=LONG_TIMEOUT, connect=LONG_TIMEOUT)
pool = HTTPConnectionPool(host, port, timeout=big_timeout, retries=False)
self.addCleanup(pool.close)
conn = pool._get_conn()
self.assertRaises(ConnectTimeoutError,
pool._make_request,
conn, 'GET', url,
timeout=timeout)
pool._put_conn(conn)
self.assertRaises(ConnectTimeoutError, pool.request, 'GET', url, timeout=timeout)
def test_chunks(self):
self.start_chunked_handler()
chunks = [b'foo', b'bar', b'', b'bazzzzzzzzzzzzzzzzzzzzzz']
pool = HTTPConnectionPool(self.host, self.port, retries=False)
pool.urlopen('GET', '/', chunks, headers=dict(DNT='1'))
self.addCleanup(pool.close)
self.assertTrue(b'transfer-encoding' in self.buffer)
body = self.buffer.split(b'\r\n\r\n', 1)[1]
lines = body.split(b'\r\n')
# Empty chunks should have been skipped, as this could not be distinguished
# from terminating the transmission
for i, chunk in enumerate([c for c in chunks if c]):
self.assertEqual(lines[i * 2], hex(len(chunk))[2:].encode('utf-8'))
self.assertEqual(lines[i * 2 + 1], chunk)
def test_timeout_float(self):
block_event = Event()
ready_event = self.start_basic_handler(block_send=block_event, num=2)
# Pool-global timeout
pool = HTTPConnectionPool(self.host, self.port, timeout=SHORT_TIMEOUT, retries=False)
self.addCleanup(pool.close)
wait_for_socket(ready_event)
self.assertRaises(ReadTimeoutError, pool.request, 'GET', '/')
block_event.set() # Release block
# Shouldn't raise this time
wait_for_socket(ready_event)
block_event.set() # Pre-release block
pool.request('GET', '/')
def test_source_address_error(self):
for addr in INVALID_SOURCE_ADDRESSES:
pool = HTTPConnectionPool(self.host, self.port, source_address=addr, retries=False)
# FIXME: This assert flakes sometimes. Not sure why.
self.assertRaises(NewConnectionError,
pool.request,
'GET', '/source_address?{0}'.format(addr))
def test_lazy_load_twice(self):
# This test is sad and confusing. Need to figure out what's
# going on with partial reads and socket reuse.
pool = HTTPConnectionPool(self.host, self.port, block=True, maxsize=1, timeout=2)
payload_size = 1024 * 2
first_chunk = 512
boundary = 'foo'
req_data = {'count': 'a' * payload_size}
resp_data = encode_multipart_formdata(req_data, boundary=boundary)[0]
req2_data = {'count': 'b' * payload_size}
resp2_data = encode_multipart_formdata(req2_data, boundary=boundary)[0]
r1 = pool.request('POST', '/echo',
fields=req_data,
multipart_boundary=boundary,
preload_content=False)
first_data = r1.read(first_chunk)
self.assertGreater(len(first_data), 0)
self.assertEqual(first_data, resp_data[:len(first_data)])
try:
r2 = pool.request('POST', '/echo', fields=req2_data, multipart_boundary=boundary,
preload_content=False, pool_timeout=0.001)
# This branch should generally bail here, but maybe someday it will
# work? Perhaps by some sort of magic. Consider it a TODO.
second_data = r2.read(first_chunk)
self.assertGreater(len(second_data), 0)
self.assertEqual(second_data, resp2_data[:len(second_data)])
self.assertEqual(r1.read(), resp_data[len(first_data):])
self.assertEqual(r2.read(), resp2_data[len(second_data):])
self.assertEqual(pool.num_requests, 2)
except EmptyPoolError:
self.assertEqual(r1.read(), resp_data[len(first_data):])
self.assertEqual(pool.num_requests, 1)
self.assertEqual(pool.num_connections, 1)
def test_defaults_are_applied(self):
"""Test that modifying the default socket options works."""
# This test needs to be here in order to be run. socket.create_connection actually tries
# to connect to the host provided so we need a dummyserver to be running.
pool = HTTPConnectionPool(self.host, self.port)
self.addCleanup(pool.close)
# Get the HTTPConnection instance
conn = pool._new_conn()
self.addCleanup(conn.close)
# Update the default socket options
conn.default_socket_options += [(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)]
conn.connect()
s = conn._sock
self.addCleanup(s.close)
nagle_disabled = s.getsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY) > 0
using_keepalive = s.getsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE) > 0
self.assertTrue(nagle_disabled)
self.assertTrue(using_keepalive)
def test_total_timeout(self):
block_event = Event()
ready_event = self.start_basic_handler(block_send=block_event, num=2)
wait_for_socket(ready_event)
# This will get the socket to raise an EAGAIN on the read
timeout = Timeout(connect=3, read=SHORT_TIMEOUT)
pool = HTTPConnectionPool(self.host, self.port, timeout=timeout, retries=False)
self.addCleanup(pool.close)
self.assertRaises(ReadTimeoutError, pool.request, 'GET', '/')
block_event.set()
wait_for_socket(ready_event)
block_event.clear()
# The connect should succeed and this should hit the read timeout
timeout = Timeout(connect=3, read=5, total=SHORT_TIMEOUT)
pool = HTTPConnectionPool(self.host, self.port, timeout=timeout, retries=False)
self.addCleanup(pool.close)
self.assertRaises(ReadTimeoutError, pool.request, 'GET', '/')
def _test_body(self, data):
self.start_chunked_handler()
pool = HTTPConnectionPool(self.host, self.port, retries=False)
self.addCleanup(pool.close)
pool.urlopen('GET', '/', data)
header, body = self.buffer.split(b'\r\n\r\n', 1)
self.assertTrue(b'transfer-encoding: chunked' in header.split(b'\r\n'))
if data:
bdata = data if isinstance(
data, six.binary_type) else data.encode('utf-8')
self.assertTrue(b'\r\n' + bdata + b'\r\n' in body)
self.assertTrue(body.endswith(b'\r\n0\r\n\r\n'))
len_str = body.split(b'\r\n', 1)[0]
stated_len = int(len_str, 16)
self.assertEqual(stated_len, len(bdata))
else:
self.assertEqual(body, b'0\r\n\r\n')
def test_conn_closed(self):
block_event = Event()
self.start_basic_handler(block_send=block_event, num=1)
pool = HTTPConnectionPool(self.host, self.port, timeout=SHORT_TIMEOUT, retries=False)
self.addCleanup(pool.close)
conn = pool._get_conn()
pool._put_conn(conn)
try:
pool.urlopen('GET', '/')
self.fail("The request should fail with a timeout error.")
except ReadTimeoutError:
if conn._sock:
self.assertRaises(socket.error, conn.sock.recv, 1024)
finally:
pool._put_conn(conn)
block_event.set()
def test_connection_count_bigpool(self):
http_pool = HTTPConnectionPool(self.host, self.port, maxsize=16)
self.addCleanup(http_pool.close)
http_pool.request('GET', '/')
http_pool.request('GET', '/')
http_pool.request('GET', '/')
self.assertEqual(http_pool.num_connections, 1)
self.assertEqual(http_pool.num_requests, 3)
def test_connection_count(self):
pool = HTTPConnectionPool(self.host, self.port, maxsize=1)
self.addCleanup(pool.close)
pool.request('GET', '/')
pool.request('GET', '/')
pool.request('GET', '/')
self.assertEqual(pool.num_connections, 1)
self.assertEqual(pool.num_requests, 3)
def test_total_applies_connect(self):
host, port = TARPIT_HOST, 80
timeout = Timeout(total=None, connect=SHORT_TIMEOUT)
pool = HTTPConnectionPool(host, port, timeout=timeout)
self.addCleanup(pool.close)
conn = pool._get_conn()
self.addCleanup(conn.close)
self.assertRaises(ConnectTimeoutError, pool._make_request, conn, 'GET', '/')
timeout = Timeout(connect=3, read=5, total=SHORT_TIMEOUT)
pool = HTTPConnectionPool(host, port, timeout=timeout)
self.addCleanup(pool.close)
conn = pool._get_conn()
self.addCleanup(conn.close)
self.assertRaises(ConnectTimeoutError, pool._make_request, conn, 'GET', '/')
def test_mixed_case_hostname(self):
pool = HTTPConnectionPool("LoCaLhOsT", self.port)
self.addCleanup(pool.close)
response = pool.request('GET', "http://LoCaLhOsT:%d/" % self.port)
self.assertEqual(response.status, 200)
def test_dns_error(self):
pool = HTTPConnectionPool('thishostdoesnotexist.invalid', self.port, timeout=0.001)
self.assertRaises(MaxRetryError, pool.request, 'GET', '/test', retries=2)
def test_for_double_release(self):
MAXSIZE = 5
# Check default state
pool = HTTPConnectionPool(self.host, self.port, maxsize=MAXSIZE)
self.addCleanup(pool.close)
self.assertEqual(pool.num_connections, 0)
self.assertEqual(pool.pool.qsize(), MAXSIZE)
# Make an empty slot for testing
pool.pool.get()
self.assertEqual(pool.pool.qsize(), MAXSIZE-1)
# Check state after simple request
pool.urlopen('GET', '/')
self.assertEqual(pool.pool.qsize(), MAXSIZE-1)
# Check state without release
pool.urlopen('GET', '/', preload_content=False)
self.assertEqual(pool.pool.qsize(), MAXSIZE-2)
pool.urlopen('GET', '/')
self.assertEqual(pool.pool.qsize(), MAXSIZE-2)
# Check state after read
pool.urlopen('GET', '/').data
self.assertEqual(pool.pool.qsize(), MAXSIZE-2)
pool.urlopen('GET', '/')
self.assertEqual(pool.pool.qsize(), MAXSIZE-2)
def test_timeout(self):
# Requests should time out when expected
block_event = Event()
ready_event = self.start_basic_handler(block_send=block_event, num=6)
# Pool-global timeout
timeout = Timeout(read=SHORT_TIMEOUT)
pool = HTTPConnectionPool(self.host, self.port, timeout=timeout, retries=False)
self.addCleanup(pool.close)
wait_for_socket(ready_event)
conn = pool._get_conn()
self.assertRaises(ReadTimeoutError, pool._make_request, conn, 'GET', '/')
pool._put_conn(conn)
block_event.set() # Release request
wait_for_socket(ready_event)
block_event.clear()
self.assertRaises(ReadTimeoutError, pool.request, 'GET', '/')
block_event.set() # Release request
# Request-specific timeouts should raise errors
pool = HTTPConnectionPool(self.host, self.port, timeout=LONG_TIMEOUT, retries=False)
self.addCleanup(pool.close)
conn = pool._get_conn()
wait_for_socket(ready_event)
now = time.time()
self.assertRaises(ReadTimeoutError, pool._make_request, conn, 'GET', '/', timeout=timeout)
delta = time.time() - now
block_event.set() # Release request
message = "timeout was pool-level LONG_TIMEOUT rather than request-level SHORT_TIMEOUT"
self.assertTrue(delta < LONG_TIMEOUT, message)
pool._put_conn(conn)
wait_for_socket(ready_event)
now = time.time()
self.assertRaises(ReadTimeoutError, pool.request, 'GET', '/', timeout=timeout)
delta = time.time() - now
message = "timeout was pool-level LONG_TIMEOUT rather than request-level SHORT_TIMEOUT"
self.assertTrue(delta < LONG_TIMEOUT, message)
block_event.set() # Release request
# Timeout int/float passed directly to request and _make_request should
# raise a request timeout
wait_for_socket(ready_event)
self.assertRaises(ReadTimeoutError, pool.request, 'GET', '/', timeout=SHORT_TIMEOUT)
block_event.set() # Release request
wait_for_socket(ready_event)
conn = pool._new_conn()
# FIXME: This assert flakes sometimes. Not sure why.
self.assertRaises(ReadTimeoutError,
pool._make_request,
conn, 'GET', '/',
timeout=SHORT_TIMEOUT)
block_event.set() # Release request
def test_timeout_success(self):
timeout = Timeout(connect=3, read=5, total=None)
pool = HTTPConnectionPool(self.host, self.port, timeout=timeout)
self.addCleanup(pool.close)
pool.request('GET', '/')
# This should not raise a "Timeout already started" error
pool.request('GET', '/')
pool = HTTPConnectionPool(self.host, self.port, timeout=timeout)
self.addCleanup(pool.close)
# This should also not raise a "Timeout already started" error
pool.request('GET', '/')
timeout = Timeout(total=None)
pool = HTTPConnectionPool(self.host, self.port, timeout=timeout)
self.addCleanup(pool.close)
pool.request('GET', '/')
def test_queue_monkeypatching(self):
with mock.patch.object(queue, 'Empty', BadError):
with HTTPConnectionPool(host="localhost", block=True) as http:
http._get_conn(timeout=1)
with pytest.raises(EmptyPoolError):
http._get_conn(timeout=1)
def test_keepalive_close(self):
pool = HTTPConnectionPool(self.host, self.port,
block=True, maxsize=1, timeout=2)
self.addCleanup(pool.close)
r = pool.request('GET', '/keepalive?close=1', retries=0,
headers={
"Connection": "close",
})
self.assertEqual(pool.num_connections, 1)
# The dummyserver will have responded with Connection:close,
# and httplib will properly cleanup the socket.
# We grab the HTTPConnection object straight from the Queue,
# because _get_conn() is where the check & reset occurs
# pylint: disable-msg=W0212
conn = pool.pool.get()
self.assertEqual(conn._sock, None)
pool._put_conn(conn)
# Now with keep-alive
r = pool.request('GET', '/keepalive?close=0', retries=0,
headers={
"Connection": "keep-alive",
})
# The dummyserver responded with Connection:keep-alive, the connection
# persists.
conn = pool.pool.get()
self.assertNotEqual(conn._sock, None)
pool._put_conn(conn)
# Another request asking the server to close the connection. This one
# should get cleaned up for the next request.
r = pool.request('GET', '/keepalive?close=1', retries=0,
headers={
"Connection": "close",
})
self.assertEqual(r.status, 200)
conn = pool.pool.get()
self.assertEqual(conn._sock, None)
pool._put_conn(conn)
# Next request
r = pool.request('GET', '/keepalive?close=0')