def test_connection_with_running_server(self):
server_started = multiprocessing.Event()
cb_called = multiprocessing.Event()
def test_connection(s):
msg_buf = []
msg = read_msg_from_socket(s, msg_buf)
exp_msg = '{"signal": {"sdkclient": {"name": "testapp", "status": "connected", "version": "%s"}}}' % iottly.__version__
self.assertEqual(exp_msg, msg.decode())
cb_called.set()
server = UDSStubServer(self.socket_path,
on_bind=server_started.set,
on_connect=test_connection)
server.start()
try:
server_started.wait(2)
except OSError as e:
if e.errno == errno.ETIMEDOUT:
pass
self.assertTrue(os.path.exists(self.socket_path))
sdk = iottly.IottlySDK('testapp', self.socket_path)
sdk.start()
try:
cb_called.wait(1.0)
self.assertTrue(cb_called.is_set())
except OSError as e:
if e.errno == errno.ETIMEDOUT:
self.fail('Server doesn\'t received any connection')
finally:
sdk.stop()
server.stop()
def test_call_agent(self):
cb_called = multiprocessing.Event()
def read_msg(s):
msg_buf = []
_ = read_msg_from_socket(s, msg_buf) # 1st msg in signal
msg = read_msg_from_socket(s, msg_buf)
self.assertEqual(
'{"signal": {"sdkclient": {"name": "testapp", "call": {"user_cmd": {"arg1": "foo"}}}}}',
msg.decode())
cb_called.set()
server = UDSStubServer(self.socket_path, on_connect=read_msg)
server.start()
sdk = iottly.IottlySDK('testapp', self.socket_path)
sdk.start()
sdk._agent_version = '1.8.0'
# This sleep guarantee that the call_agent sends data through the socket
# after the initial version hand-shake. This is not required at runtime
# because `call_agent` required the agent version to be set.
time.sleep(0.5)
sdk.call_agent('user_cmd', {'arg1': 'foo'})
sdk.send({'test': 'foo'})
if not cb_called.wait(1.0):
server.stop()
self.fail('Server doesn\'t received any connection')
sdk.stop()
server.stop()
def test_callback_invoked_only_if_registered(self):
server_started = multiprocessing.Event()
client_connected = multiprocessing.Event()
def on_connect(s):
s.send(
b'{"data": {"non_echo":{"content":"IOTTLY hello world!!!!"}}}\n'
)
client_connected.set()
server = UDSStubServer(self.socket_path,
on_bind=server_started.set,
on_connect=on_connect)
server.start()
try:
server_started.wait(2.0)
except OSError as e:
if e.errno == errno.ETIMEDOUT:
self.fail('cannot start server')
cmd_cb = Mock(name='cmd_cb')
sdk = iottly.IottlySDK('testapp', self.socket_path)
sdk.subscribe('echo', cmd_cb)
sdk.start()
client_connected.wait(2.0)
server.stop()
time.sleep(0.6) # give some time
try:
cmd_cb.assert_not_called()
finally:
sdk.stop()
def test_call_agent_with_disconnected_sdk(self):
sdk = iottly.IottlySDK('testapp', self.socket_path)
sdk.start()
sdk._agent_version = '1.8.6'
with self.assertRaises(DisconnectedSDK):
sdk.call_agent('echo')
def test_sending_msg_to_agent_with_channel(self):
cb_called = multiprocessing.Event()
def read_msg(s):
msg_buf = []
_ = read_msg_from_socket(s, msg_buf) # 1st msg in signal
msg = read_msg_from_socket(s, msg_buf)
expected_msg = '{"data": {"sdkclient": {"name": "testapp"}, "payload": {"test_metric": "test data"}, "channel": "test"}}'
self.assertEqual(expected_msg, msg.decode())
cb_called.set()
server = UDSStubServer(self.socket_path, on_connect=read_msg)
server.start()
sdk = iottly.IottlySDK('testapp', self.socket_path)
sdk.start()
time.sleep(0.7)
sdk.send({'test_metric': 'test data'}, channel='test')
try:
cb_called.wait(1.0)
self.assertTrue(cb_called.is_set())
except OSError as e:
if e.errno == errno.ETIMEDOUT:
self.fail('Server doesn\'t received any connection')
finally:
sdk.stop()
server.stop()
def test_receiving_connection_status_signalling_from_agent(self):
server_started = multiprocessing.Event()
client_connected = multiprocessing.Event()
def on_connect(s):
s.send(b'{"signal": {"connectionstatus": "disconnected"}}\n')
s.send(b'{"signal": {"connectionstatus": "connected"}}\n')
client_connected.set()
server = UDSStubServer(self.socket_path,
on_bind=server_started.set,
on_connect=on_connect)
server.start()
try:
server_started.wait(2.0)
except OSError as e:
if e.errno == errno.ETIMEDOUT:
self.fail('cannot start server')
conn_status_cb = Mock(name='conn_status_cb')
sdk = iottly.IottlySDK('testapp',
self.socket_path,
on_connection_status_changed=conn_status_cb)
sdk.start()
client_connected.wait(2.0)
server.stop()
time.sleep(0.6) # give some time
conn_status_cb.assert_has_calls(
[call('disconnected'), call('connected')])
sdk.stop()
def test_receiving_stopping_signal_from_agent(self):
server_started = multiprocessing.Event()
client_connected = multiprocessing.Event()
def on_connect(s):
# Before sending the stopping signal we let fire
# the started CB timeout.
time.sleep(1.5)
s.send(b'{"signal": {"agentstatus": "stopping"}}\n')
client_connected.set()
server = UDSStubServer(self.socket_path,
on_bind=server_started.set,
on_connect=on_connect)
server.start()
try:
server_started.wait(2.0)
except OSError as e:
if e.errno == errno.ETIMEDOUT:
self.fail('cannot start server')
agent_status_cb = Mock(name='agent_status_cb')
sdk = iottly.IottlySDK('testapp',
self.socket_path,
on_agent_status_changed=agent_status_cb)
sdk.start()
client_connected.wait(2.0)
time.sleep(3.0) # give some time > timeout for deferred callback
server.stop()
agent_status_cb.assert_has_calls(
[call('started'),
call('stopping'),
call('stopped')])
sdk.stop()
def test_connection_callback(self):
server_started = multiprocessing.Event()
client_connected = multiprocessing.Event()
exit_set = multiprocessing.Event()
def on_connect(s):
client_connected.set()
msg_buf = []
s.send(b'filler')
while not exit_set.is_set():
read_msg_from_socket(s, msg_buf)
server = UDSStubServer(self.socket_path,
on_bind=server_started.set,
on_connect=on_connect)
server.start()
try:
server_started.wait(2.0)
except OSError as e:
if e.errno == errno.ETIMEDOUT:
self.fail('cannot start server')
agent_status_cb = Mock(name='agent_status_cb')
sdk = iottly.IottlySDK('testapp',
self.socket_path,
on_agent_status_changed=agent_status_cb)
sdk.start()
client_connected.wait(2.0)
time.sleep(2.0)
sdk.stop()
exit_set.set()
server.stop()
agent_status_cb.assert_has_calls([call('started'), call('stopped')])
def test_call_agent_inside_connection_callback(self):
"""Test issue #5 https://github.com/tomorrowdata/iottly-sdk-python/issues/5
"""
server_started = multiprocessing.Event()
server_accepted_conn = multiprocessing.Event()
server_init_rcvd = multiprocessing.Event()
server_init_sent = multiprocessing.Event()
server_call_agent_rcvd = multiprocessing.Event()
sdk_on_agent_status_changed_called = multiprocessing.Event()
sdk_call_agent_sent = multiprocessing.Event()
def server_script(s):
server_accepted_conn.set()
msg_buf = []
msg = read_msg_from_socket(s, msg_buf)
exp_msg = '{"signal": {"sdkclient": {"name": "testapp", "status": "connected", "version": "%s"}}}' % iottly.__version__
self.assertEqual(exp_msg, msg.decode())
server_init_rcvd.set()
s.send(b'{"signal": {"sdkinit": {"version": "1.8.0"}}}\n')
server_init_sent.set()
self.wait_or_fail(sdk_call_agent_sent,
msg='call_agent was not invoked')
call_agent_msg = read_msg_from_socket(s, msg_buf)
self.assertEqual(
b'{"signal": {"sdkclient": {"name": "testapp", "call": {"test_cmd": {}}}}}',
call_agent_msg)
server_call_agent_rcvd.set()
s.close()
def agent_status_cb(status):
sdk_on_agent_status_changed_called.set()
if status == 'started':
sdk.call_agent('test_cmd', {})
sdk_call_agent_sent.set()
server = UDSStubServer(self.socket_path,
on_bind=server_started.set,
on_connect=server_script)
server.start()
self.wait_or_fail(server_started, msg='Cannot start server')
sdk = iottly.IottlySDK('testapp',
self.socket_path,
on_agent_status_changed=agent_status_cb)
sdk.start()
self.wait_or_fail(server_accepted_conn, msg='Client did not connect')
self.wait_or_fail(server_init_rcvd)
self.wait_or_fail(server_init_sent)
self.wait_or_fail(sdk_on_agent_status_changed_called,
msg='Agent status changed CB not invoked')
self.wait_or_fail(sdk_call_agent_sent,
msg='call_agent was not invoked')
self.wait_or_fail(server_call_agent_rcvd,
msg='call_agent was not received')
server.stop()
sdk.stop()
def test_get_version_from_agent(self):
server_started = multiprocessing.Event()
cb_called = multiprocessing.Event()
sdk_linked = multiprocessing.Event()
finished = multiprocessing.Event()
def send_sdkinit_signal(s):
s.send(b'{"signal": {"sdkinit": {"version": "1.8.0"}}}\n')
cb_called.set()
msg_buf = []
read_msg_from_socket(s, msg_buf)
finished.wait(4.0)
server = UDSStubServer(self.socket_path,
on_bind=server_started.set,
on_connect=send_sdkinit_signal)
server.start()
self.wait_or_fail(server_started,
timeout=2.0,
msg='Cannot start mock server')
def agent_status_cb(status):
sdk_linked.set()
sdk = iottly.IottlySDK('testapp',
self.socket_path,
on_agent_status_changed=agent_status_cb)
sdk.start()
self.wait_or_fail(cb_called,
timeout=2.0,
msg='Cannot sent sdkinit from server')
self.wait_or_fail(sdk_linked,
timeout=10.0,
msg='Started CB not called')
self.assertEqual('1.8.0', sdk._agent_version)
finished.set()
server.stop()
sdk.stop()
def test_handling_exception_in_callbacks(self):
server_started = multiprocessing.Event()
client_connected = multiprocessing.Event()
def on_connect(s):
s.send(
b'{"data": {"echo":{"content":"IOTTLY hello world!!!!"}}}\n')
client_connected.set()
msg_buf = []
msg = read_msg_from_socket(s, msg_buf)
self.assertEqual(
'{"signal": {"sdkclient": {"name": "testapp", "error": {"type": "ValueError", "msg": "exception in cb"}}}}',
msg.decode())
server = UDSStubServer(self.socket_path,
on_bind=server_started.set,
on_connect=on_connect)
server.start()
try:
server_started.wait(2.0)
except OSError as e:
if e.errno == errno.ETIMEDOUT:
self.fail('cannot start server')
cmd_cb = Mock(side_effect=ValueError('exception in cb'))
sdk = iottly.IottlySDK('testapp', self.socket_path)
sdk.subscribe('echo', cmd_cb)
sdk.start()
client_connected.wait(2.0)
server.stop()
time.sleep(0.6) # give some time
try:
self.assertEqual(1, cmd_cb.call_count)
finally:
sdk.stop()
def test_call_agent_with_disconnected_sdk_and_unknown_version(self):
sdk = iottly.IottlySDK('testapp', self.socket_path)
sdk.start()
with self.assertRaises(InvalidAgentVersion):
sdk.call_agent('echo')