def test_close_connection(self):
nc = Client()
options = {
"dont_randomize": True,
"servers": [
"nats://*****:*****@127.0.0.1:4223",
"nats://*****:*****@127.0.0.1:4224"
],
"io_loop": self.io_loop
}
yield nc.connect(**options)
self.assertEqual(True, nc._server_info["auth_required"])
log = Log()
sid_1 = yield nc.subscribe("foo", "", log.persist)
self.assertEqual(sid_1, 1)
sid_2 = yield nc.subscribe("bar", "", log.persist)
self.assertEqual(sid_2, 2)
sid_3 = yield nc.subscribe("quux", "", log.persist)
self.assertEqual(sid_3, 3)
yield nc.publish("foo", "hello")
yield tornado.gen.sleep(1.0)
# Done
yield nc.close()
orig_gnatsd = self.server_pool.pop(0)
orig_gnatsd.finish()
try:
a = nc._current_server
# Wait and assert that we don't reconnect.
yield tornado.gen.sleep(3)
finally:
b = nc._current_server
self.assertEqual(a.uri, b.uri)
self.assertFalse(nc.is_connected())
self.assertFalse(nc.is_reconnecting())
self.assertTrue(nc.is_closed())
with(self.assertRaises(ErrConnectionClosed)):
yield nc.publish("hello", "world")
with(self.assertRaises(ErrConnectionClosed)):
yield nc.flush()
with(self.assertRaises(ErrConnectionClosed)):
yield nc.subscribe("hello", "worker")
with(self.assertRaises(ErrConnectionClosed)):
yield nc.publish_request("hello", "inbox", "world")
with(self.assertRaises(ErrConnectionClosed)):
yield nc.request("hello", "world")
with(self.assertRaises(ErrConnectionClosed)):
yield nc.timed_request("hello", "world")
def test_custom_ping_interval(self):
class Parser():
def __init__(self, nc, t):
self.nc = nc
self.t = t
def read(self, data=''):
self.t.assertEqual(1, len(self.nc._pongs))
self.nc._process_pong()
self.t.assertEqual(0, len(self.nc._pongs))
nc = Client()
nc._ps = Parser(nc, self)
yield nc.connect(io_loop=self.io_loop, ping_interval=0.01)
yield tornado.gen.sleep(1)
self.assertEqual(3, nc._pings_outstanding)
self.assertFalse(nc.is_connected())
self.assertTrue(nc.is_reconnecting())
def test_auth_pending_bytes_handling(self):
nc = Client()
class Component:
def __init__(self, nc):
self.nc = nc
self.errors = []
self.written = 0
self.max_messages = 2000
self.disconnected_at = 0
self.pending_bytes_when_closed = 0
self.pending_bytes_when_reconnected = 0
def error_cb(self, err):
self.errors.append(err)
def disconnected_cb(self):
self.disconnected_at = self.written
self.pending_bytes_when_closed = len(self.nc._pending)
def reconnected_cb(self):
self.pending_bytes_when_reconnected = len(self.nc._pending)
@tornado.gen.coroutine
def publisher(self):
for i in range(0, self.max_messages):
yield self.nc.publish("foo", "{0},".format(i))
# yield self.nc.flush()
self.written += 1
yield tornado.gen.sleep(0.0001)
c = Component(nc)
options = {
"dont_randomize": True,
"servers": [
"nats://*****:*****@127.0.0.1:4223",
"nats://*****:*****@127.0.0.1:4224"
],
"io_loop": self.io_loop,
"reconnected_cb": c.reconnected_cb,
"disconnected_cb": c.disconnected_cb,
"error_cb": c.error_cb,
}
yield c.nc.connect(**options)
self.assertEqual(True, nc._server_info["auth_required"])
log = Log()
yield c.nc.subscribe("foo", "", log.persist)
self.io_loop.spawn_callback(c.publisher)
yield tornado.gen.sleep(0.5)
orig_gnatsd = self.server_pool.pop(0)
orig_gnatsd.finish()
try:
a = nc._current_server
# Wait for reconnect logic kick in...
yield tornado.gen.sleep(5)
finally:
b = nc._current_server
self.assertNotEqual(a.uri, b.uri)
# Should have reconnected already
self.assertTrue(nc.is_connected())
self.assertFalse(nc.is_reconnecting())
# Wait a bit until it flushes all...
yield tornado.gen.sleep(1)
http = tornado.httpclient.AsyncHTTPClient()
response = yield http.fetch('http://127.0.0.1:8224/connz')
result = json.loads(response.body.decode("utf-8"))
connz = result['connections'][0]
self.assertEqual(c.max_messages - c.disconnected_at, connz['in_msgs'])
self.assertTrue(c.pending_bytes_when_reconnected > c.pending_bytes_when_closed)
def test_auth_connect(self):
nc = Client()
options = {
"dont_randomize": True,
"servers": [
"nats://*****:*****@127.0.0.1:4223",
"nats://*****:*****@127.0.0.1:4224"
],
"io_loop": self.io_loop
}
yield nc.connect(**options)
self.assertEqual(True, nc._server_info["auth_required"])
log = Log()
sid_1 = yield nc.subscribe("foo", "", log.persist)
self.assertEqual(sid_1, 1)
sid_2 = yield nc.subscribe("bar", "", log.persist)
self.assertEqual(sid_2, 2)
sid_3 = yield nc.subscribe("quux", "", log.persist)
self.assertEqual(sid_3, 3)
yield nc.publish("foo", "hello")
yield tornado.gen.sleep(1.0)
http = tornado.httpclient.AsyncHTTPClient()
response = yield http.fetch('http://127.0.0.1:8223/connz')
result = json.loads(response.body.decode("utf-8"))
connz = result['connections'][0]
self.assertEqual(3, connz['subscriptions'])
self.assertEqual(1, connz['in_msgs'])
self.assertEqual(5, connz['in_bytes'])
yield nc.publish("foo", "world")
yield tornado.gen.sleep(0.5)
response = yield http.fetch('http://127.0.0.1:8223/connz')
result = json.loads(response.body.decode("utf-8"))
connz = result['connections'][0]
self.assertEqual(3, connz['subscriptions'])
self.assertEqual(2, connz['in_msgs'])
self.assertEqual(10, connz['in_bytes'])
orig_gnatsd = self.server_pool.pop(0)
orig_gnatsd.finish()
try:
a = nc._current_server
# Wait for reconnect logic kick in...
yield tornado.gen.sleep(5)
finally:
b = nc._current_server
self.assertNotEqual(a.uri, b.uri)
self.assertTrue(nc.is_connected())
self.assertFalse(nc.is_reconnecting())
http = tornado.httpclient.AsyncHTTPClient()
response = yield http.fetch('http://127.0.0.1:8224/connz')
result = json.loads(response.body.decode("utf-8"))
connz = result['connections'][0]
self.assertEqual(3, connz['subscriptions'])
self.assertEqual(0, connz['in_msgs'])
self.assertEqual(0, connz['in_bytes'])
yield nc.publish("foo", "!!!")
yield tornado.gen.sleep(0.5)
response = yield http.fetch('http://127.0.0.1:8224/connz')
result = json.loads(response.body.decode("utf-8"))
connz = result['connections'][0]
self.assertEqual(3, connz['subscriptions'])
self.assertEqual(1, connz['in_msgs'])
self.assertEqual(3, connz['in_bytes'])
full_msg = ''
for msg in log.records[b'foo']:
full_msg += msg.data.decode("utf-8")
self.assertEqual('helloworld!!!', full_msg)