class TestDeviceServerClientIntegrated(unittest.TestCase, TestUtilMixin):
BLACKLIST = ("version-connect", "version", "build-state")
def setUp(self):
self.server = DeviceTestServer('', 0)
self.server.start(timeout=0.1)
host, port = self.server._sock.getsockname()
self.server_addr = (host, port)
self.client = BlockingTestClient(self, host, port)
self.client.start(timeout=0.1)
self.assertTrue(self.client.wait_protocol(timeout=0.1))
def tearDown(self):
if self.client.running():
self.client.stop()
self.client.join()
if self.server.running():
self.server.stop()
self.server.join()
def test_log(self):
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST,
replies=True)
with mock.patch('katcp.server.time.time') as m_time:
m_time.return_value = 1234
self.server.log.error('An error')
get_msgs.wait_number(1)
self._assert_msgs_equal(
get_msgs(), [r"#log error 1234.000000 root An\_error"])
def test_simple_connect(self):
"""Test a simple server setup and teardown with client connect."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST,
replies=True)
# basic send
self.client.request(katcp.Message.request("foo"), use_mid=False)
# pipe-lined send
self.client.raw_send("?bar-boom\r\n?baz\r")
# broken up sends
self.client.raw_send("?boo")
self.client.raw_send("m arg1 arg2")
self.client.raw_send("\n")
time.sleep(0.1)
self._assert_msgs_equal(get_msgs(), [
r"!foo invalid Unknown\_request.",
r"!bar-boom invalid Unknown\_request.",
r"!baz invalid Unknown\_request.",
r"!boom invalid Unknown\_request.",
])
def test_bad_requests(self):
"""Test request failure paths in device server."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.client.raw_send("bad msg\n")
# wait for reply
self.client.blocking_request(
katcp.Message.request("watchdog"), use_mid=False)
self._assert_msgs_like(get_msgs(), [
(r"#log error", "KatcpSyntaxError:"
"\_Bad\_type\_character\_'b'.\\n"),
(r"!watchdog ok", ""),
])
def test_slow_client(self):
# Test that server does not choke sending messages to slow clients
self.server.send_timeout = 0.1 # Set a short sending timeout
self.client.wait_protocol(1)
slow_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
slow_sock.connect(self.server_addr)
slow_sock.settimeout(0.1)
# Send a bunch of request to the server, but don't read anything from
# the server
try:
slow_sock.sendall('?help\n'*100000)
except socket.timeout:
pass
t0 = time.time()
# Request should not have taken a very long time.
self.client.assert_request_succeeds('help', informs_count=NO_HELP_MESSAGES)
self.assertTrue(time.time() - t0 < 1)
def test_server_ignores_informs_and_replies(self):
"""Test server ignores informs and replies."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.client.raw_send("#some inform\n")
self.client.raw_send("!some reply\n")
time.sleep(0.1)
self.assertFalse(get_msgs())
def test_standard_requests(self):
"""Test standard request and replies."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
nomid_req = partial(self.client.request, use_mid=False)
nomid_req(katcp.Message.request("watchdog"), use_mid=False)
nomid_req(katcp.Message.request("restart"))
nomid_req(katcp.Message.request("log-level"))
nomid_req(katcp.Message.request("log-level", "trace"))
nomid_req(katcp.Message.request("log-level", "unknown"))
nomid_req(katcp.Message.request("help"))
nomid_req(katcp.Message.request("help", "watchdog"))
nomid_req(katcp.Message.request("help", "unknown-request"))
nomid_req(katcp.Message.request("client-list"))
nomid_req(katcp.Message.request("version-list"))
nomid_req(katcp.Message.request("sensor-list"))
nomid_req(katcp.Message.request("sensor-list", "an.int"))
nomid_req(katcp.Message.request("sensor-list", "an.unknown"))
nomid_req(katcp.Message.request("sensor-value"))
nomid_req(katcp.Message.request("sensor-value", "an.int"))
nomid_req(katcp.Message.request("sensor-value",
"an.unknown"))
nomid_req(katcp.Message.request("sensor-sampling", "an.int"))
nomid_req(katcp.Message.request("sensor-sampling", "an.int",
"differential", "2"))
nomid_req(katcp.Message.request("sensor-sampling", "an.int",
"event-rate", "2", "3"))
nomid_req(katcp.Message.request("sensor-sampling"))
nomid_req(katcp.Message.request("sensor-sampling",
"an.unknown", "auto"))
self.client.blocking_request(katcp.Message.request(
"sensor-sampling", "an.int", "unknown"), use_mid=False)
time.sleep(0.1)
self.server.log.trace("trace-msg")
self.server.log.debug("debug-msg")
self.server.log.info("info-msg")
self.server.log.warn("warn-msg")
self.server.log.error("error-msg")
self.server.log.fatal("fatal-msg")
time.sleep(0.1)
self.assertEqual(self.server.restart_queue.get_nowait(), self.server)
self._assert_msgs_like(get_msgs(), [
(r"!watchdog ok", ""),
(r"!restart ok", ""),
(r"!log-level ok warn", ""),
(r"!log-level ok trace", ""),
(r"!log-level fail Unknown\_logging\_level\_name\_'unknown'", ""),
(r"#help cancel-slow-command Cancel\_slow\_command\_request,\_"
"resulting\_in\_it\_replying\_immediately", ""),
(r"#help client-list", ""),
(r"#help halt", ""),
(r"#help help", ""),
(r"#help log-level", ""),
(r"#help new-command", ""),
(r"#help raise-exception", ""),
(r"#help raise-fail", ""),
(r"#help restart", ""),
(r"#help sensor-list", ""),
(r"#help sensor-sampling", ""),
(r"#help sensor-sampling-clear", ""),
(r"#help sensor-value", ""),
(r"#help slow-command", ""),
(r"#help version-list", ""),
(r"#help watchdog", ""),
(r"!help ok %d" % NO_HELP_MESSAGES, ""),
(r"#help watchdog", ""),
(r"!help ok 1", ""),
(r"!help fail", ""),
(r"#client-list", ""),
(r"!client-list ok 1", ""),
(r"#version-list katcp-protocol", ""),
(r"#version-list katcp-library", ""),
(r"#version-list katcp-device", ""),
(r"!version-list ok 3", ""),
(r"#sensor-list an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list ok 1", ""),
(r"#sensor-list an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list ok 1", ""),
(r"!sensor-list fail", ""),
(r"#sensor-value 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-value ok 1", ""),
(r"#sensor-value 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-value ok 1", ""),
(r"!sensor-value fail", ""),
(r"!sensor-sampling ok an.int none", ""),
(r"#sensor-status 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-sampling ok an.int differential 2", ""),
(r"#sensor-status 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-sampling ok an.int event-rate 2 3", ""),
(r"!sensor-sampling fail No\_sensor\_name\_given.", ""),
(r"!sensor-sampling fail Unknown\_sensor\_name:\_an.unknown.", ""),
(r"!sensor-sampling fail Unknown\_strategy\_name:\_unknown.", ""),
(r"#log trace", r"root trace-msg"),
(r"#log debug", r"root debug-msg"),
(r"#log info", r"root info-msg"),
(r"#log warn", r"root warn-msg"),
(r"#log error", r"root error-msg"),
(r"#log fatal", r"root fatal-msg"),
])
def test_standard_requests_with_ids(self):
"""Test standard request and replies with message ids."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
current_id = [0]
def mid():
current_id[0] += 1
return str(current_id[0])
def mid_req(*args):
return katcp.Message.request(*args, mid=mid())
self.client.request(mid_req("watchdog"))
self.client.request(mid_req("restart"))
self.client.request(mid_req("log-level"))
self.client.request(mid_req("log-level", "trace"))
self.client.request(mid_req("log-level", "unknown"))
self.client.request(mid_req("help"))
self.client.request(mid_req("help", "watchdog"))
self.client.request(mid_req("help", "unknown-request"))
self.client.request(mid_req("client-list"))
self.client.request(mid_req("version-list"))
self.client.request(mid_req("sensor-list"))
self.client.request(mid_req("sensor-list", "an.int"))
self.client.request(mid_req("sensor-list", "an.unknown"))
self.client.request(mid_req("sensor-value"))
self.client.request(mid_req("sensor-value", "an.int"))
self.client.request(mid_req("sensor-value", "an.unknown"))
self.client._next_id = mid # mock our mid generator for testing
self.client.blocking_request(mid_req("sensor-sampling", "an.int"))
self.client.blocking_request(mid_req(
"sensor-sampling", "an.int", "differential", "2"))
self.client.blocking_request(mid_req(
"sensor-sampling", "an.int", "event-rate", "2", "3")),
self.client.blocking_request(mid_req("sensor-sampling"))
self.client.blocking_request(mid_req(
"sensor-sampling", "an.unknown", "auto"))
self.client.blocking_request(mid_req(
"sensor-sampling", "an.int", "unknown"))
self.server.log.trace("trace-msg")
self.server.log.debug("debug-msg")
self.server.log.info("info-msg")
self.server.log.warn("warn-msg")
self.server.log.error("error-msg")
self.server.log.fatal("fatal-msg")
time.sleep(0.1)
self.assertEqual(self.server.restart_queue.get_nowait(), self.server)
self._assert_msgs_like(get_msgs(), [
(r"!watchdog[1] ok", ""),
(r"!restart[2] ok", ""),
(r"!log-level[3] ok warn", ""),
(r"!log-level[4] ok trace", ""),
(r"!log-level[5] fail Unknown\_logging\_level\_name\_'unknown'",
""),
(r"#help[6] cancel-slow-command Cancel\_slow\_command\_request,\_"
"resulting\_in\_it\_replying\_immediately", ""),
(r"#help[6] client-list", ""),
(r"#help[6] halt", ""),
(r"#help[6] help", ""),
(r"#help[6] log-level", ""),
(r"#help[6] new-command", ""),
(r"#help[6] raise-exception", ""),
(r"#help[6] raise-fail", ""),
(r"#help[6] restart", ""),
(r"#help[6] sensor-list", ""),
(r"#help[6] sensor-sampling", ""),
(r"#help[6] sensor-sampling-clear", ""),
(r"#help[6] sensor-value", ""),
(r"#help[6] slow-command", ""),
(r"#help[6] version-list", ""),
(r"#help[6] watchdog", ""),
(r"!help[6] ok %d" % NO_HELP_MESSAGES, ""),
(r"#help[7] watchdog", ""),
(r"!help[7] ok 1", ""),
(r"!help[8] fail", ""),
(r"#client-list[9]", ""),
(r"!client-list[9] ok 1", ""),
(r"#version-list[10] katcp-protocol", ""),
(r"#version-list[10] katcp-library", ""),
(r"#version-list[10] katcp-device", ""),
(r"!version-list[10] ok 3", ""),
(r"#sensor-list[11] an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list[11] ok 1", ""),
(r"#sensor-list[12] an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list[12] ok 1", ""),
(r"!sensor-list[13] fail", ""),
(r"#sensor-value[14] 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-value[14] ok 1", ""),
(r"#sensor-value[15] 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-value[15] ok 1", ""),
(r"!sensor-value[16] fail", ""),
(r"!sensor-sampling[17] ok an.int none", ""),
(r"#sensor-status 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-sampling[18] ok an.int differential 2", ""),
(r"#sensor-status 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-sampling[19] ok an.int event-rate 2 3", ""),
(r"!sensor-sampling[20] fail No\_sensor\_name\_given.", ""),
(r"!sensor-sampling[21] fail Unknown\_sensor\_name:\_an.unknown.", ""),
(r"!sensor-sampling[22] fail Unknown\_strategy\_name:\_unknown.", ""),
(r"#log trace", r"root trace-msg"),
(r"#log debug", r"root debug-msg"),
(r"#log info", r"root info-msg"),
(r"#log warn", r"root warn-msg"),
(r"#log error", r"root error-msg"),
(r"#log fatal", r"root fatal-msg"),
])
def test_sensor_list_regex(self):
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-list", "/a.*/"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"#sensor-list an.int An\_Integer. count integer -5 5",
r"!sensor-list ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-list", "//"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"#sensor-list an.int An\_Integer. count integer -5 5",
r"!sensor-list ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-list", "/^int/"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"!sensor-list ok 0",
])
def test_sensor_value_regex(self):
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-value", "/a.*/"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"#sensor-value 12345.000000 1 an.int nominal 3",
r"!sensor-value ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-value", "//"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"#sensor-value 12345.000000 1 an.int nominal 3",
r"!sensor-value ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-value", "/^int/"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"!sensor-value ok 0",
])
def test_client_list(self):
reply, informs = self.client.blocking_request(
katcp.Message.request('client-list'), use_mid=False)
self.assertEqual(str(reply), '!client-list ok 1')
self.assertEqual(len(informs), 1)
inform = str(informs[0])
self.assertTrue(inform.startswith('#client-list 127.0.0.1:'))
_, addr = inform.split()
host, port = addr.split(':')
port = int(port)
self.assertEqual((host, port), self.client._sock.getsockname())
def test_halt_request(self):
"""Test halt request."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.client.request(katcp.Message.request("halt"))
# hack to hide re-connect exception
self.client.connect = lambda: None
self.server.join()
time.sleep(0.1)
self._assert_msgs_equal(get_msgs(), [
r"!halt[1] ok",
r"#disconnect Device\_server\_shutting\_down.",
])
def test_bad_handlers(self):
"""Test that bad request and inform handlers are picked up."""
try:
class BadServer(katcp.DeviceServer):
def request_baz(self, req, msg):
pass
except AssertionError:
pass
else:
self.fail("Server metaclass accepted missing request_ docstring.")
try:
class BadServer(katcp.DeviceServer):
def inform_baz(self, req, msg):
pass
except AssertionError:
pass
else:
self.fail("Server metaclass accepted missing inform_ docstring.")
class SortOfOkayServer(katcp.DeviceServer):
request_bar = 1
inform_baz = 2
assert("bar" not in SortOfOkayServer._request_handlers)
assert("baz" not in SortOfOkayServer._inform_handlers)
def test_handler_exceptions(self):
"""Test handling of failure replies and other exceptions."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.assertTrue(self.client.wait_protocol(timeout=1))
self.client.request(katcp.Message.request("raise-exception"))
self.client.request(katcp.Message.request("raise-fail"))
time.sleep(0.1)
self._assert_msgs_like(get_msgs(), [
(r"!raise-exception[1] fail Traceback", ""),
(r"!raise-fail[2] fail There\_was\_a\_problem\_with\_your\_request.",
""),
])
def test_stop_and_restart(self):
"""Test stopping and restarting the device server."""
self.server.stop(timeout=0.1)
self.server.join(timeout=1.0)
self.assertEqual(self.server._thread, None)
self.assertFalse(self.server._running.isSet())
self.server.start(timeout=1.0)
def test_bad_client_socket(self):
"""Test what happens when select is called on a dead client socket."""
# wait for client to arrive
time.sleep(0.1)
# close socket while the server isn't looking
# then wait for the server to notice
sock = self.server._socks[0]
sock.close()
time.sleep(0.75)
# check that client was removed
self.assertTrue(sock not in self.server._socks,
"Expected %r to not be in %r" %
(sock, self.server._socks))
def test_bad_server_socket(self):
"""Test what happens when select is called on a dead server socket."""
# wait for client to arrive
time.sleep(0.1)
# close socket while the server isn't looking
# then wait for the server to notice
sock = self.server._sock
sockname = sock.getsockname()
sock.close()
time.sleep(0.75)
# check that server restarted
self.assertTrue(sock is not self.server._sock,
"Expected %r to not be %r" % (sock, self.server._sock))
self.assertEqual(sockname, self.server._sock.getsockname())
def test_daemon_value(self):
"""Test passing in a daemon value to server start method."""
self.server.stop(timeout=0.1)
self.server.join(timeout=1.0)
self.server.start(timeout=0.1, daemon=True)
self.assertTrue(self.server._thread.isDaemon())
def test_excepthook(self):
"""Test passing in an excepthook to server start method."""
exceptions = []
except_event = threading.Event()
def excepthook(etype, value, traceback):
"""Keep track of exceptions."""
exceptions.append(etype)
except_event.set()
self.server.stop(timeout=0.1)
self.server.join(timeout=1.5)
self.server.start(timeout=0.1, excepthook=excepthook)
# force exception by deleteing _running
old_running = self.server._running
try:
del self.server._running
except_event.wait(1.5)
self.assertEqual(exceptions, [AttributeError])
finally:
self.server._running = old_running
# close socket -- server didn't shut down correctly
self.server._sock.close()
self.server.stop(timeout=0.1)
self.server.join(timeout=1.5)
except_event.clear()
del exceptions[:]
self.server.start(timeout=0.1, excepthook=excepthook)
# force exception in sample reactor and check that it makes
# it back up
reactor = self.server._reactor
old_stop = reactor._stopEvent
try:
del reactor._stopEvent
reactor._wakeEvent.set()
except_event.wait(0.1)
self.assertEqual(exceptions, [AttributeError])
finally:
reactor._stopEvent = old_stop
# close socket -- server didn't shut down correctly
self.server._sock.close()
def test_sampling(self):
"""Test sensor sampling."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.client.wait_protocol(timeout=1)
self.client.request(katcp.Message.request(
"sensor-sampling", "an.int", "period", 1/32.))
# Wait for the request reply and for the sensor update messages to
# arrive. We expect update one the moment the sensor-sampling request is
# made, then four more over 4/32. of a second, resutling in 6
# messages. Wait half a period longer just to be sure we get everything.
self.assertTrue(get_msgs.wait_number(6, timeout=4.5/32.))
self.client.assert_request_succeeds("sensor-sampling", "an.int", "none")
# Wait for reply to above request
get_msgs.wait_number(7)
msgs = get_msgs()
updates = [x for x in msgs if x.name == "sensor-status"]
others = [x for x in msgs if x.name != "sensor-status"]
self.assertTrue(abs(len(updates) - 5) < 2,
"Expected 5 informs, saw %d." % len(updates))
self._assert_msgs_equal(others, [
r"!sensor-sampling[1] ok an.int period %s" % (1/32.),
r"!sensor-sampling[2] ok an.int none",
])
self.assertEqual(updates[0].arguments[1:],
["1", "an.int", "nominal", "3"])
## Now clear the strategies on this sensor
# There should only be on connection to the server, so it should be
# the test client
client_conn = self.server._sock_connections.values()[0]
self.server.clear_strategies(client_conn)
self.client.assert_request_succeeds("sensor-sampling", "an.int",
args_equal=["an.int", "none"])
# Check that we did not accidentally clobber the strategy datastructure
# in the proccess
self.client.assert_request_succeeds(
"sensor-sampling", "an.int", "period", 0.125)
def test_add_remove_sensors(self):
"""Test adding and removing sensors from a running device."""
an_int = self.server._sensors["an.int"]
self.server.remove_sensor(an_int)
self.server.add_sensor(an_int)
self.test_sampling()
class TestDeviceServerClientIntegrated(unittest.TestCase, TestUtilMixin):
BLACKLIST = ("version-connect", "version", "build-state")
def setUp(self):
self.server = DeviceTestServer('', 0)
self.server.start(timeout=0.1)
host, port = self.server._sock.getsockname()
self.server_addr = (host, port)
self.client = BlockingTestClient(self, host, port)
self.client.start(timeout=0.1)
self.assertTrue(self.client.wait_protocol(timeout=0.1))
def tearDown(self):
if self.client.running():
self.client.stop()
self.client.join()
if self.server.running():
self.server.stop()
self.server.join()
def test_log(self):
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST,
replies=True)
with mock.patch('katcp.server.time.time') as m_time:
m_time.return_value = 1234
self.server.log.error('An error')
get_msgs.wait_number(1)
self._assert_msgs_equal(
get_msgs(), [r"#log error 1234.000000 root An\_error"])
def test_simple_connect(self):
"""Test a simple server setup and teardown with client connect."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST,
replies=True)
# basic send
self.client.request(katcp.Message.request("foo"), use_mid=False)
# pipe-lined send
self.client.raw_send("?bar-boom\r\n?baz\r")
# broken up sends
self.client.raw_send("?boo")
self.client.raw_send("m arg1 arg2")
self.client.raw_send("\n")
time.sleep(0.1)
self._assert_msgs_equal(get_msgs(), [
r"!foo invalid Unknown\_request.",
r"!bar-boom invalid Unknown\_request.",
r"!baz invalid Unknown\_request.",
r"!boom invalid Unknown\_request.",
])
def test_bad_requests(self):
"""Test request failure paths in device server."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.client.raw_send("bad msg\n")
# wait for reply
self.client.blocking_request(
katcp.Message.request("watchdog"), use_mid=False)
self._assert_msgs_like(get_msgs(), [
(r"#log error", "KatcpSyntaxError:"
"\_Bad\_type\_character\_'b'.\\n"),
(r"!watchdog ok", ""),
])
def test_slow_client(self):
# Test that server does not choke sending messages to slow clients
self.server.send_timeout = 0.1 # Set a short sending timeout
self.client.wait_protocol(1)
slow_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
slow_sock.connect(self.server_addr)
slow_sock.settimeout(0.1)
# Send a bunch of request to the server, but don't read anything from
# the server
try:
slow_sock.sendall('?help\n'*100000)
except socket.timeout:
pass
t0 = time.time()
# Request should not have taken a very long time.
self.client.assert_request_succeeds('help', informs_count=NO_HELP_MESSAGES)
self.assertTrue(time.time() - t0 < 1)
def test_server_ignores_informs_and_replies(self):
"""Test server ignores informs and replies."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.client.raw_send("#some inform\n")
self.client.raw_send("!some reply\n")
time.sleep(0.1)
self.assertFalse(get_msgs())
def test_standard_requests(self):
"""Test standard request and replies."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
nomid_req = partial(self.client.request, use_mid=False)
nomid_req(katcp.Message.request("watchdog"), use_mid=False)
nomid_req(katcp.Message.request("restart"))
nomid_req(katcp.Message.request("log-level"))
nomid_req(katcp.Message.request("log-level", "trace"))
nomid_req(katcp.Message.request("log-level", "unknown"))
nomid_req(katcp.Message.request("help"))
nomid_req(katcp.Message.request("help", "watchdog"))
nomid_req(katcp.Message.request("help", "unknown-request"))
nomid_req(katcp.Message.request("client-list"))
nomid_req(katcp.Message.request("version-list"))
nomid_req(katcp.Message.request("sensor-list"))
nomid_req(katcp.Message.request("sensor-list", "an.int"))
nomid_req(katcp.Message.request("sensor-list", "an.unknown"))
nomid_req(katcp.Message.request("sensor-value"))
nomid_req(katcp.Message.request("sensor-value", "an.int"))
nomid_req(katcp.Message.request("sensor-value",
"an.unknown"))
nomid_req(katcp.Message.request("sensor-sampling", "an.int"))
nomid_req(katcp.Message.request("sensor-sampling", "an.int",
"differential", "2"))
nomid_req(katcp.Message.request("sensor-sampling", "an.int",
"event-rate", "2", "3"))
nomid_req(katcp.Message.request("sensor-sampling"))
nomid_req(katcp.Message.request("sensor-sampling",
"an.unknown", "auto"))
self.client.blocking_request(katcp.Message.request(
"sensor-sampling", "an.int", "unknown"), use_mid=False)
time.sleep(0.1)
self.server.log.trace("trace-msg")
self.server.log.debug("debug-msg")
self.server.log.info("info-msg")
self.server.log.warn("warn-msg")
self.server.log.error("error-msg")
self.server.log.fatal("fatal-msg")
time.sleep(0.1)
self.assertEqual(self.server.restart_queue.get_nowait(), self.server)
self._assert_msgs_like(get_msgs(), [
(r"!watchdog ok", ""),
(r"!restart ok", ""),
(r"!log-level ok warn", ""),
(r"!log-level ok trace", ""),
(r"!log-level fail Unknown\_logging\_level\_name\_'unknown'", ""),
(r"#help cancel-slow-command Cancel\_slow\_command\_request,\_"
"resulting\_in\_it\_replying\_immediately", ""),
(r"#help client-list", ""),
(r"#help halt", ""),
(r"#help help", ""),
(r"#help log-level", ""),
(r"#help new-command", ""),
(r"#help raise-exception", ""),
(r"#help raise-fail", ""),
(r"#help restart", ""),
(r"#help sensor-list", ""),
(r"#help sensor-sampling", ""),
(r"#help sensor-sampling-clear", ""),
(r"#help sensor-value", ""),
(r"#help slow-command", ""),
(r"#help version-list", ""),
(r"#help watchdog", ""),
(r"!help ok %d" % NO_HELP_MESSAGES, ""),
(r"#help watchdog", ""),
(r"!help ok 1", ""),
(r"!help fail", ""),
(r"#client-list", ""),
(r"!client-list ok 1", ""),
(r"#version-list katcp-protocol", ""),
(r"#version-list katcp-library", ""),
(r"#version-list katcp-device", ""),
(r"!version-list ok 3", ""),
(r"#sensor-list an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list ok 1", ""),
(r"#sensor-list an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list ok 1", ""),
(r"!sensor-list fail", ""),
(r"#sensor-value 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-value ok 1", ""),
(r"#sensor-value 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-value ok 1", ""),
(r"!sensor-value fail", ""),
(r"!sensor-sampling ok an.int none", ""),
(r"#sensor-status 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-sampling ok an.int differential 2", ""),
(r"#sensor-status 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-sampling ok an.int event-rate 2 3", ""),
(r"!sensor-sampling fail No\_sensor\_name\_given.", ""),
(r"!sensor-sampling fail Unknown\_sensor\_name:\_an.unknown.", ""),
(r"!sensor-sampling fail Unknown\_strategy\_name:\_unknown.", ""),
(r"#log trace", r"root trace-msg"),
(r"#log debug", r"root debug-msg"),
(r"#log info", r"root info-msg"),
(r"#log warn", r"root warn-msg"),
(r"#log error", r"root error-msg"),
(r"#log fatal", r"root fatal-msg"),
])
def test_standard_requests_with_ids(self):
"""Test standard request and replies with message ids."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
current_id = [0]
def mid():
current_id[0] += 1
return str(current_id[0])
def mid_req(*args):
return katcp.Message.request(*args, mid=mid())
self.client.request(mid_req("watchdog"))
self.client.request(mid_req("restart"))
self.client.request(mid_req("log-level"))
self.client.request(mid_req("log-level", "trace"))
self.client.request(mid_req("log-level", "unknown"))
self.client.request(mid_req("help"))
self.client.request(mid_req("help", "watchdog"))
self.client.request(mid_req("help", "unknown-request"))
self.client.request(mid_req("client-list"))
self.client.request(mid_req("version-list"))
self.client.request(mid_req("sensor-list"))
self.client.request(mid_req("sensor-list", "an.int"))
self.client.request(mid_req("sensor-list", "an.unknown"))
self.client.request(mid_req("sensor-value"))
self.client.request(mid_req("sensor-value", "an.int"))
self.client.request(mid_req("sensor-value", "an.unknown"))
self.client._next_id = mid # mock our mid generator for testing
self.client.blocking_request(mid_req("sensor-sampling", "an.int"))
self.client.blocking_request(mid_req(
"sensor-sampling", "an.int", "differential", "2"))
self.client.blocking_request(mid_req(
"sensor-sampling", "an.int", "event-rate", "2", "3")),
self.client.blocking_request(mid_req("sensor-sampling"))
self.client.blocking_request(mid_req(
"sensor-sampling", "an.unknown", "auto"))
self.client.blocking_request(mid_req(
"sensor-sampling", "an.int", "unknown"))
self.server.log.trace("trace-msg")
self.server.log.debug("debug-msg")
self.server.log.info("info-msg")
self.server.log.warn("warn-msg")
self.server.log.error("error-msg")
self.server.log.fatal("fatal-msg")
time.sleep(0.1)
self.assertEqual(self.server.restart_queue.get_nowait(), self.server)
self._assert_msgs_like(get_msgs(), [
(r"!watchdog[1] ok", ""),
(r"!restart[2] ok", ""),
(r"!log-level[3] ok warn", ""),
(r"!log-level[4] ok trace", ""),
(r"!log-level[5] fail Unknown\_logging\_level\_name\_'unknown'",
""),
(r"#help[6] cancel-slow-command Cancel\_slow\_command\_request,\_"
"resulting\_in\_it\_replying\_immediately", ""),
(r"#help[6] client-list", ""),
(r"#help[6] halt", ""),
(r"#help[6] help", ""),
(r"#help[6] log-level", ""),
(r"#help[6] new-command", ""),
(r"#help[6] raise-exception", ""),
(r"#help[6] raise-fail", ""),
(r"#help[6] restart", ""),
(r"#help[6] sensor-list", ""),
(r"#help[6] sensor-sampling", ""),
(r"#help[6] sensor-sampling-clear", ""),
(r"#help[6] sensor-value", ""),
(r"#help[6] slow-command", ""),
(r"#help[6] version-list", ""),
(r"#help[6] watchdog", ""),
(r"!help[6] ok %d" % NO_HELP_MESSAGES, ""),
(r"#help[7] watchdog", ""),
(r"!help[7] ok 1", ""),
(r"!help[8] fail", ""),
(r"#client-list[9]", ""),
(r"!client-list[9] ok 1", ""),
(r"#version-list[10] katcp-protocol", ""),
(r"#version-list[10] katcp-library", ""),
(r"#version-list[10] katcp-device", ""),
(r"!version-list[10] ok 3", ""),
(r"#sensor-list[11] an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list[11] ok 1", ""),
(r"#sensor-list[12] an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list[12] ok 1", ""),
(r"!sensor-list[13] fail", ""),
(r"#sensor-value[14] 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-value[14] ok 1", ""),
(r"#sensor-value[15] 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-value[15] ok 1", ""),
(r"!sensor-value[16] fail", ""),
(r"!sensor-sampling[17] ok an.int none", ""),
(r"#sensor-status 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-sampling[18] ok an.int differential 2", ""),
(r"#sensor-status 12345.000000 1 an.int nominal 3", ""),
(r"!sensor-sampling[19] ok an.int event-rate 2 3", ""),
(r"!sensor-sampling[20] fail No\_sensor\_name\_given.", ""),
(r"!sensor-sampling[21] fail Unknown\_sensor\_name:\_an.unknown.", ""),
(r"!sensor-sampling[22] fail Unknown\_strategy\_name:\_unknown.", ""),
(r"#log trace", r"root trace-msg"),
(r"#log debug", r"root debug-msg"),
(r"#log info", r"root info-msg"),
(r"#log warn", r"root warn-msg"),
(r"#log error", r"root error-msg"),
(r"#log fatal", r"root fatal-msg"),
])
def test_sensor_list_regex(self):
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-list", "/a.*/"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"#sensor-list an.int An\_Integer. count integer -5 5",
r"!sensor-list ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-list", "//"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"#sensor-list an.int An\_Integer. count integer -5 5",
r"!sensor-list ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-list", "/^int/"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"!sensor-list ok 0",
])
def test_sensor_value_regex(self):
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-value", "/a.*/"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"#sensor-value 12345.000000 1 an.int nominal 3",
r"!sensor-value ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-value", "//"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"#sensor-value 12345.000000 1 an.int nominal 3",
r"!sensor-value ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request(
"sensor-value", "/^int/"), use_mid=False)
self._assert_msgs_equal(informs + [reply], [
r"!sensor-value ok 0",
])
def test_client_list(self):
reply, informs = self.client.blocking_request(
katcp.Message.request('client-list'), use_mid=False)
self.assertEqual(str(reply), '!client-list ok 1')
self.assertEqual(len(informs), 1)
inform = str(informs[0])
self.assertTrue(inform.startswith('#client-list 127.0.0.1:'))
_, addr = inform.split()
host, port = addr.split(':')
port = int(port)
self.assertEqual((host, port), self.client._sock.getsockname())
def test_halt_request(self):
"""Test halt request."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.client.request(katcp.Message.request("halt"))
# hack to hide re-connect exception
self.client.connect = lambda: None
self.server.join()
time.sleep(0.1)
self._assert_msgs_equal(get_msgs(), [
r"!halt[1] ok",
r"#disconnect Device\_server\_shutting\_down.",
])
def test_bad_handlers(self):
"""Test that bad request and inform handlers are picked up."""
try:
class BadServer(katcp.DeviceServer):
def request_baz(self, req, msg):
pass
except AssertionError:
pass
else:
self.fail("Server metaclass accepted missing request_ docstring.")
try:
class BadServer(katcp.DeviceServer):
def inform_baz(self, req, msg):
pass
except AssertionError:
pass
else:
self.fail("Server metaclass accepted missing inform_ docstring.")
class SortOfOkayServer(katcp.DeviceServer):
request_bar = 1
inform_baz = 2
assert("bar" not in SortOfOkayServer._request_handlers)
assert("baz" not in SortOfOkayServer._inform_handlers)
def test_handler_exceptions(self):
"""Test handling of failure replies and other exceptions."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.assertTrue(self.client.wait_protocol(timeout=1))
self.client.request(katcp.Message.request("raise-exception"))
self.client.request(katcp.Message.request("raise-fail"))
time.sleep(0.1)
self._assert_msgs_like(get_msgs(), [
(r"!raise-exception[1] fail Traceback", ""),
(r"!raise-fail[2] fail There\_was\_a\_problem\_with\_your\_request.",
""),
])
def test_stop_and_restart(self):
"""Test stopping and restarting the device server."""
self.server.stop(timeout=0.1)
self.server.join(timeout=1.0)
self.assertEqual(self.server._thread, None)
self.assertFalse(self.server._running.isSet())
self.server.start(timeout=1.0)
def test_bad_client_socket(self):
"""Test what happens when select is called on a dead client socket."""
# wait for client to arrive
time.sleep(0.1)
# close socket while the server isn't looking
# then wait for the server to notice
sock = self.server._socks[0]
sock.close()
time.sleep(0.75)
# check that client was removed
self.assertTrue(sock not in self.server._socks,
"Expected %r to not be in %r" %
(sock, self.server._socks))
def test_bad_server_socket(self):
"""Test what happens when select is called on a dead server socket."""
# wait for client to arrive
time.sleep(0.1)
# close socket while the server isn't looking
# then wait for the server to notice
sock = self.server._sock
sockname = sock.getsockname()
sock.close()
time.sleep(0.75)
# check that server restarted
self.assertTrue(sock is not self.server._sock,
"Expected %r to not be %r" % (sock, self.server._sock))
self.assertEqual(sockname, self.server._sock.getsockname())
def test_daemon_value(self):
"""Test passing in a daemon value to server start method."""
self.server.stop(timeout=0.1)
self.server.join(timeout=1.0)
self.server.start(timeout=0.1, daemon=True)
self.assertTrue(self.server._thread.isDaemon())
def test_excepthook(self):
"""Test passing in an excepthook to server start method."""
exceptions = []
except_event = threading.Event()
def excepthook(etype, value, traceback):
"""Keep track of exceptions."""
exceptions.append(etype)
except_event.set()
self.server.stop(timeout=0.1)
self.server.join(timeout=1.5)
self.server.start(timeout=0.1, excepthook=excepthook)
# force exception by deleteing _running
old_running = self.server._running
try:
del self.server._running
except_event.wait(1.5)
self.assertEqual(exceptions, [AttributeError])
finally:
self.server._running = old_running
# close socket -- server didn't shut down correctly
self.server._sock.close()
self.server.stop(timeout=0.1)
self.server.join(timeout=1.5)
except_event.clear()
del exceptions[:]
self.server.start(timeout=0.1, excepthook=excepthook)
# force exception in sample reactor and check that it makes
# it back up
reactor = self.server._reactor
old_stop = reactor._stopEvent
try:
del reactor._stopEvent
reactor._wakeEvent.set()
except_event.wait(0.1)
self.assertEqual(exceptions, [AttributeError])
finally:
reactor._stopEvent = old_stop
# close socket -- server didn't shut down correctly
self.server._sock.close()
def test_sampling(self):
"""Test sensor sampling."""
get_msgs = self.client.message_recorder(
blacklist=self.BLACKLIST, replies=True)
self.client.wait_protocol(timeout=1)
self.client.request(katcp.Message.request(
"sensor-sampling", "an.int", "period", 1/32.))
# Wait for the request reply and for the sensor update messages to
# arrive. We expect update one the moment the sensor-sampling request is
# made, then four more over 4/32. of a second, resutling in 6
# messages. Wait half a period longer just to be sure we get everything.
self.assertTrue(get_msgs.wait_number(6, timeout=4.5/32.))
self.client.assert_request_succeeds("sensor-sampling", "an.int", "none")
# Wait for reply to above request
get_msgs.wait_number(7)
msgs = get_msgs()
updates = [x for x in msgs if x.name == "sensor-status"]
others = [x for x in msgs if x.name != "sensor-status"]
self.assertTrue(abs(len(updates) - 5) < 2,
"Expected 5 informs, saw %d." % len(updates))
self._assert_msgs_equal(others, [
r"!sensor-sampling[1] ok an.int period %s" % (1/32.),
r"!sensor-sampling[2] ok an.int none",
])
self.assertEqual(updates[0].arguments[1:],
["1", "an.int", "nominal", "3"])
## Now clear the strategies on this sensor
# There should only be on connection to the server, so it should be
# the test client
client_conn = self.server._sock_connections.values()[0]
self.server.clear_strategies(client_conn)
self.client.assert_request_succeeds("sensor-sampling", "an.int",
args_equal=["an.int", "none"])
# Check that we did not accidentally clobber the strategy datastructure
# in the proccess
self.client.assert_request_succeeds(
"sensor-sampling", "an.int", "period", 0.125)
def test_add_remove_sensors(self):
"""Test adding and removing sensors from a running device."""
an_int = self.server._sensors["an.int"]
self.server.remove_sensor(an_int)
self.server.add_sensor(an_int)
self.test_sampling()
class TestDeviceServer(unittest.TestCase, TestUtilMixin):
def setUp(self):
self.server = DeviceTestServer('', 0)
self.server.start(timeout=0.1)
host, port = self.server._sock.getsockname()
self.client = BlockingTestClient(self, host, port)
self.client.start(timeout=0.1)
def tearDown(self):
if self.client.running():
self.client.stop()
self.client.join()
if self.server.running():
self.server.stop()
self.server.join()
def test_simple_connect(self):
"""Test a simple server setup and teardown with client connect."""
# basic send
self.client.request(katcp.Message.request("foo"))
# pipe-lined send
self.client.raw_send("?bar-boom\r\n?baz\r")
# broken up sends
self.client.raw_send("?boo")
self.client.raw_send("m arg1 arg2")
self.client.raw_send("\n")
time.sleep(0.1)
msgs = self.client.messages()
self._assert_msgs_equal(msgs, [
r"#version device_stub-0.1",
r"#build-state name-0.1",
r"!foo invalid Unknown\_request.",
r"!bar-boom invalid Unknown\_request.",
r"!baz invalid Unknown\_request.",
r"!boom invalid Unknown\_request.",
])
def test_bad_requests(self):
"""Test request failure paths in device server."""
self.client.raw_send("bad msg\n")
# wait for reply
self.client.blocking_request(katcp.Message.request("watchdog"))
msgs = self.client.messages()
self._assert_msgs_like(msgs, [
(r"#version device_stub-0.1", ""),
(r"#build-state name-0.1", ""),
(r"#log error", "KatcpSyntaxError:\_Bad\_type\_character\_'b'.\\n"),
(r"!watchdog ok", ""),
])
def test_server_ignores_informs_and_replies(self):
"""Test server ignores informs and replies."""
self.client.raw_send("#some inform\n")
self.client.raw_send("!some reply\n")
time.sleep(0.1)
msgs = self.client.messages()
self._assert_msgs_like(msgs, [
(r"#version device_stub-0.1", ""),
(r"#build-state name-0.1", ""),
])
def test_standard_requests(self):
"""Test standard request and replies."""
self.client.request(katcp.Message.request("watchdog"))
self.client.request(katcp.Message.request("restart"))
self.client.request(katcp.Message.request("log-level"))
self.client.request(katcp.Message.request("log-level", "trace"))
self.client.request(katcp.Message.request("log-level", "unknown"))
self.client.request(katcp.Message.request("help"))
self.client.request(katcp.Message.request("help", "watchdog"))
self.client.request(katcp.Message.request("help", "unknown-request"))
self.client.request(katcp.Message.request("client-list"))
self.client.request(katcp.Message.request("sensor-list"))
self.client.request(katcp.Message.request("sensor-list", "an.int"))
self.client.request(katcp.Message.request("sensor-list", "an.unknown"))
self.client.request(katcp.Message.request("sensor-value"))
self.client.request(katcp.Message.request("sensor-value", "an.int"))
self.client.request(katcp.Message.request("sensor-value", "an.unknown"))
self.client.request(katcp.Message.request("sensor-sampling", "an.int"))
self.client.request(katcp.Message.request("sensor-sampling", "an.int", "differential", "2"))
self.client.request(katcp.Message.request("sensor-sampling"))
self.client.request(katcp.Message.request("sensor-sampling", "an.unknown", "auto"))
self.client.blocking_request(katcp.Message.request("sensor-sampling", "an.int", "unknown"))
time.sleep(0.1)
self.server.log.trace("trace-msg")
self.server.log.debug("debug-msg")
self.server.log.info("info-msg")
self.server.log.warn("warn-msg")
self.server.log.error("error-msg")
self.server.log.fatal("fatal-msg")
time.sleep(0.1)
msgs = self.client.messages()
self.assertEqual(self.server.restart_queue.get_nowait(), self.server)
self._assert_msgs_like(msgs, [
(r"#version device_stub-0.1", ""),
(r"#build-state name-0.1", ""),
(r"!watchdog ok", ""),
(r"!restart ok", ""),
(r"!log-level ok warn", ""),
(r"!log-level ok trace", ""),
(r"!log-level fail Unknown\_logging\_level\_name\_'unknown'", ""),
(r"#help client-list", ""),
(r"#help halt", ""),
(r"#help help", ""),
(r"#help log-level", ""),
(r"#help new-command", ""),
(r"#help raise-exception", ""),
(r"#help raise-fail", ""),
(r"#help restart", ""),
(r"#help sensor-list", ""),
(r"#help sensor-sampling", ""),
(r"#help sensor-value", ""),
(r"#help slow-command", ""),
(r"#help watchdog", ""),
(r"!help ok 13", ""),
(r"#help watchdog", ""),
(r"!help ok 1", ""),
(r"!help fail", ""),
(r"#client-list", ""),
(r"!client-list ok 1", ""),
(r"#sensor-list an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list ok 1", ""),
(r"#sensor-list an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list ok 1", ""),
(r"!sensor-list fail", ""),
(r"#sensor-value 12345000 1 an.int nominal 3", ""),
(r"!sensor-value ok 1", ""),
(r"#sensor-value 12345000 1 an.int nominal 3", ""),
(r"!sensor-value ok 1", ""),
(r"!sensor-value fail", ""),
(r"!sensor-sampling ok an.int none", ""),
(r"#sensor-status 12345000 1 an.int nominal 3", ""),
(r"!sensor-sampling ok an.int differential 2", ""),
(r"!sensor-sampling fail No\_sensor\_name\_given.", ""),
(r"!sensor-sampling fail Unknown\_sensor\_name.", ""),
(r"!sensor-sampling fail Unknown\_strategy\_name.", ""),
(r"#log trace", r"root trace-msg"),
(r"#log debug", r"root debug-msg"),
(r"#log info", r"root info-msg"),
(r"#log warn", r"root warn-msg"),
(r"#log error", r"root error-msg"),
(r"#log fatal", r"root fatal-msg"),
])
def test_standard_requests_with_ids(self):
"""Test standard request and replies with message ids."""
current_id = [0]
def mid():
current_id[0] += 1
return current_id[0]
self.client.request(katcp.Message.request("watchdog", mid=mid()))
self.client.request(katcp.Message.request("restart", mid=mid()))
self.client.request(katcp.Message.request("log-level", mid=mid()))
self.client.request(katcp.Message.request("log-level", "trace", mid=mid()))
self.client.request(katcp.Message.request("log-level", "unknown", mid=mid()))
self.client.request(katcp.Message.request("help", mid=mid()))
self.client.request(katcp.Message.request("help", "watchdog", mid=mid()))
self.client.request(katcp.Message.request("help", "unknown-request", mid=mid()))
self.client.request(katcp.Message.request("client-list", mid=mid()))
self.client.request(katcp.Message.request("sensor-list", mid=mid()))
self.client.request(katcp.Message.request("sensor-list", "an.int", mid=mid()))
self.client.request(katcp.Message.request("sensor-list", "an.unknown", mid=mid()))
self.client.request(katcp.Message.request("sensor-value", mid=mid()))
self.client.request(katcp.Message.request("sensor-value", "an.int", mid=mid()))
self.client.request(katcp.Message.request("sensor-value", "an.unknown", mid=mid()))
self.client.blocking_request(katcp.Message.request("sensor-sampling", "an.int", mid=mid()))
self.client.blocking_request(katcp.Message.request("sensor-sampling", "an.int", "differential", "2", mid=mid()))
self.client.blocking_request(katcp.Message.request("sensor-sampling", mid=mid()))
self.client.blocking_request(katcp.Message.request("sensor-sampling", "an.unknown", "auto", mid=mid()))
self.client.blocking_request(katcp.Message.request("sensor-sampling", "an.int", "unknown", mid=mid()))
self.server.log.trace("trace-msg")
self.server.log.debug("debug-msg")
self.server.log.info("info-msg")
self.server.log.warn("warn-msg")
self.server.log.error("error-msg")
self.server.log.fatal("fatal-msg")
time.sleep(0.1)
msgs = self.client.messages()
self.assertEqual(self.server.restart_queue.get_nowait(), self.server)
self._assert_msgs_like(msgs, [
(r"#version device_stub-0.1", ""),
(r"#build-state name-0.1", ""),
(r"!watchdog[1] ok", ""),
(r"!restart[2] ok", ""),
(r"!log-level[3] ok warn", ""),
(r"!log-level[4] ok trace", ""),
(r"!log-level[5] fail Unknown\_logging\_level\_name\_'unknown'", ""),
(r"#help[6] client-list", ""),
(r"#help[6] halt", ""),
(r"#help[6] help", ""),
(r"#help[6] log-level", ""),
(r"#help[6] new-command", ""),
(r"#help[6] raise-exception", ""),
(r"#help[6] raise-fail", ""),
(r"#help[6] restart", ""),
(r"#help[6] sensor-list", ""),
(r"#help[6] sensor-sampling", ""),
(r"#help[6] sensor-value", ""),
(r"#help[6] slow-command", ""),
(r"#help[6] watchdog", ""),
(r"!help[6] ok 13", ""),
(r"#help[7] watchdog", ""),
(r"!help[7] ok 1", ""),
(r"!help[8] fail", ""),
(r"#client-list[9]", ""),
(r"!client-list[9] ok 1", ""),
(r"#sensor-list[10] an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list[10] ok 1", ""),
(r"#sensor-list[11] an.int An\_Integer. count integer -5 5", ""),
(r"!sensor-list[11] ok 1", ""),
(r"!sensor-list[12] fail", ""),
(r"#sensor-value[13] 12345000 1 an.int nominal 3", ""),
(r"!sensor-value[13] ok 1", ""),
(r"#sensor-value[14] 12345000 1 an.int nominal 3", ""),
(r"!sensor-value[14] ok 1", ""),
(r"!sensor-value[15] fail", ""),
(r"!sensor-sampling[16] ok an.int none", ""),
(r"#sensor-status 12345000 1 an.int nominal 3", ""),
(r"!sensor-sampling[17] ok an.int differential 2", ""),
(r"!sensor-sampling[18] fail No\_sensor\_name\_given.", ""),
(r"!sensor-sampling[19] fail Unknown\_sensor\_name.", ""),
(r"!sensor-sampling[20] fail Unknown\_strategy\_name.", ""),
(r"#log trace", r"root trace-msg"),
(r"#log debug", r"root debug-msg"),
(r"#log info", r"root info-msg"),
(r"#log warn", r"root warn-msg"),
(r"#log error", r"root error-msg"),
(r"#log fatal", r"root fatal-msg"),
])
def test_sensor_list_regex(self):
reply, informs = self.client.blocking_request(katcp.Message.request("sensor-list", "/a.*/"))
self._assert_msgs_equal(informs + [reply], [
r"#sensor-list an.int An\_Integer. count integer -5 5",
r"!sensor-list ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request("sensor-list", "//"))
self._assert_msgs_equal(informs + [reply], [
r"#sensor-list an.int An\_Integer. count integer -5 5",
r"!sensor-list ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request("sensor-list", "/^int/"))
self._assert_msgs_equal(informs + [reply], [
r"!sensor-list ok 0",
])
def test_sensor_value_regex(self):
reply, informs = self.client.blocking_request(katcp.Message.request("sensor-value", "/a.*/"))
self._assert_msgs_equal(informs + [reply], [
r"#sensor-value 12345000 1 an.int nominal 3",
r"!sensor-value ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request("sensor-value", "//"))
self._assert_msgs_equal(informs + [reply], [
r"#sensor-value 12345000 1 an.int nominal 3",
r"!sensor-value ok 1",
])
reply, informs = self.client.blocking_request(katcp.Message.request("sensor-value", "/^int/"))
self._assert_msgs_equal(informs + [reply], [
r"!sensor-value ok 0",
])
def test_halt_request(self):
"""Test halt request."""
self.client.request(katcp.Message.request("halt"))
# hack to hide re-connect exception
self.client.connect = lambda: None
self.server.join()
time.sleep(0.1)
msgs = self.client.messages()
self._assert_msgs_equal(msgs, [
r"#version device_stub-0.1",
r"#build-state name-0.1",
r"!halt ok",
r"#disconnect Device\_server\_shutting\_down.",
])
def test_bad_handlers(self):
"""Test that bad request and inform handlers are picked up."""
try:
class BadServer(katcp.DeviceServer):
def request_baz(self, sock, msg):
pass
except AssertionError:
pass
else:
self.fail("Server metaclass accepted missing request_ docstring.")
try:
class BadServer(katcp.DeviceServer):
def inform_baz(self, sock, msg):
pass
except AssertionError:
pass
else:
self.fail("Server metaclass accepted missing inform_ docstring.")
class SortOfOkayServer(katcp.DeviceServer):
request_bar = 1
inform_baz = 2
assert("bar" not in SortOfOkayServer._request_handlers)
assert("baz" not in SortOfOkayServer._inform_handlers)
def test_handler_exceptions(self):
"""Test handling of failure replies and other exceptions."""
self.client.request(katcp.Message.request("raise-exception"))
self.client.request(katcp.Message.request("raise-fail"))
time.sleep(0.1)
msgs = self.client.messages()
self._assert_msgs_like(msgs, [
(r"#version device_stub-0.1", ""),
(r"#build-state name-0.1", ""),
(r"!raise-exception fail Traceback", ""),
(r"!raise-fail fail There\_was\_a\_problem\_with\_your\_request.", ""),
])
def test_stop_and_restart(self):
"""Test stopping and restarting the device server."""
self.server.stop(timeout=0.1)
self.server.join(timeout=1.0)
self.assertEqual(self.server._thread, None)
self.assertFalse(self.server._running.isSet())
self.server.start(timeout=1.0)
def test_bad_client_socket(self):
"""Test what happens when select is called on a dead client socket."""
# wait for client to arrive
time.sleep(0.1)
# close socket while the server isn't looking
# then wait for the server to notice
sock = self.server._socks[0]
sock.close()
time.sleep(0.75)
# check that client was removed
self.assertTrue(sock not in self.server._socks, "Expected %r to not be in %r" % (sock, self.server._socks))
def test_bad_server_socket(self):
"""Test what happens when select is called on a dead server socket."""
# wait for client to arrive
time.sleep(0.1)
# close socket while the server isn't looking
# then wait for the server to notice
sock = self.server._sock
sockname = sock.getsockname()
sock.close()
time.sleep(0.75)
# check that server restarted
self.assertTrue(sock is not self.server._sock, "Expected %r to not be %r" % (sock, self.server._sock))
self.assertEqual(sockname, self.server._sock.getsockname())
def test_daemon_value(self):
"""Test passing in a daemon value to server start method."""
self.server.stop(timeout=0.1)
self.server.join(timeout=1.0)
self.server.start(timeout=0.1, daemon=True)
self.assertTrue(self.server._thread.isDaemon())
def test_excepthook(self):
"""Test passing in an excepthook to server start method."""
exceptions = []
except_event = threading.Event()
def excepthook(etype, value, traceback):
"""Keep track of exceptions."""
exceptions.append(etype)
except_event.set()
self.server.stop(timeout=0.1)
self.server.join(timeout=1.5)
self.server.start(timeout=0.1, excepthook=excepthook)
# force exception by deleteing _running
old_running = self.server._running
try:
del self.server._running
except_event.wait(1.5)
self.assertEqual(exceptions, [AttributeError])
finally:
self.server._running = old_running
# close socket -- server didn't shut down correctly
self.server._sock.close()
self.server.stop(timeout=0.1)
self.server.join(timeout=1.5)
except_event.clear()
del exceptions[:]
self.server.start(timeout=0.1, excepthook=excepthook)
# force exception in sample reactor and check that it makes
# it back up
reactor = self.server._reactor
old_stop = reactor._stopEvent
try:
del reactor._stopEvent
reactor._wakeEvent.set()
except_event.wait(0.1)
self.assertEqual(exceptions, [AttributeError])
finally:
reactor._stopEvent = old_stop
# close socket -- server didn't shut down correctly
self.server._sock.close()
def test_sampling(self):
"""Test sensor sampling."""
self.client.request(katcp.Message.request("sensor-sampling", "an.int", "period", 100))
time.sleep(1.0)
self.client.request(katcp.Message.request("sensor-sampling", "an.int", "none"))
time.sleep(0.5)
msgs = self.client.messages()
updates = [x for x in msgs if x.name == "sensor-status"]
others = [x for x in msgs if x.name != "sensor-status"]
self.assertTrue(abs(len(updates) - 12) < 2, "Expected 12 informs, saw %d." % len(updates))
self._assert_msgs_equal(others, [
r"#version device_stub-0.1",
r"#build-state name-0.1",
r"!sensor-sampling ok an.int period 100",
r"!sensor-sampling ok an.int none",
])
self.assertEqual(updates[0].arguments[1:], ["1", "an.int", "nominal", "3"])
def test_add_remove_sensors(self):
"""Test adding and removing sensors from a running device."""
an_int = self.server._sensors["an.int"]
self.server.remove_sensor(an_int)
self.server.add_sensor(an_int)
self.test_sampling()
