def test_spawn_server(self):
"""Test the _spawn_server method."""
popen_calls = []
ac = ActivationClient(self.config)
self.patch(tcpactivation.subprocess, "Popen",
lambda *args, **kwargs: popen_calls.append((args, kwargs)))
ac._spawn_server()
self.assertEqual(len(popen_calls), 1)
def test_wait_server_timeouts(self):
"""If the server takes too long to start then timeout."""
ac = ActivationClient(self.config)
clock = task.Clock()
self.patch(twisted.internet, "reactor", clock)
self.patch(ac, "is_already_running", lambda: defer.succeed(False))
d = ac._wait_server_active()
clock.pump([tcpactivation.DELAY_BETWEEN_CHECKS] *
tcpactivation.NUMBER_OF_CHECKS)
return self.assertFailure(d, ActivationTimeoutError)
def test_do_get_active_description_not_running(self):
"""Test _do_get_active_description method when is not running."""
server_spawned = []
ac = ActivationClient(self.config)
self.patch(
ac, "_spawn_server", lambda *args: server_spawned.append(args))
self.patch(ac, "is_already_running", lambda: defer.succeed(False))
self.patch(ac, "_wait_server_active", lambda: defer.succeed(None))
result = yield ac._do_get_active_description()
self.assertEqual(result, self.client_description)
self.assertEqual(len(server_spawned), 1)
def ipc_client_connect(client_factory, reactor=None):
"""Connect the IPC client factory."""
ac = ActivationClient(get_activation_config())
if reactor is None:
from twisted.internet import reactor
description = yield ac.get_active_client_description()
client = endpoints.clientFromString(reactor, description)
port = yield client.connect(client_factory)
defer.returnValue(port)
def test_get_active_description_waits_classwide(self):
"""Test the get_active_description method locks classwide."""
d = defer.Deferred()
ac1 = ActivationClient(self.config)
ac2 = ActivationClient(self.config)
self.patch(ac1, "_do_get_active_description", lambda: d)
self.patch(ac2, "_do_get_active_description",
lambda: defer.succeed(None))
ac1.get_active_client_description()
d2 = ac2.get_active_client_description()
self.assertFalse(d2.called, "The second must wait for the first.")
d.callback(self.client_description)
self.assertTrue(d2.called, "The second can fire after the first.")
def client_connect(client_factory, service_name, activation_cmdline,
description, reactor=None):
"""Connect the IPC client factory."""
config = ActivationConfig(service_name, activation_cmdline, description)
ac = ActivationClient(config)
description = yield ac.get_active_client_description()
if reactor is None:
from twisted.internet import reactor
client = endpoints.clientFromString(reactor, description)
port = yield client.connect(client_factory)
defer.returnValue(port)
def client_test(config):
"""An IRL test of the client."""
from twisted.internet import reactor
print("starting the client.")
ac = ActivationClient(config)
d = ac.get_active_client_description()
def got_description(description):
"""The description was found."""
print("client got server description:", description)
reactor.stop()
d.addCallback(got_description)
reactor.run()
def test_wait_server_active(self):
"""Test the _wait_server_active method."""
ac = ActivationClient(self.config)
clock = task.Clock()
self.patch(twisted.internet, "reactor", clock)
self.patch(ac, "is_already_running", lambda: defer.succeed(False))
d = ac._wait_server_active()
self.assertFalse(d.called, "The deferred should not be fired yet.")
clock.advance(tcpactivation.DELAY_BETWEEN_CHECKS)
self.assertFalse(d.called, "The deferred should not be fired yet.")
self.patch(ac, "is_already_running", lambda: defer.succeed(True))
clock.advance(tcpactivation.DELAY_BETWEEN_CHECKS)
self.assertTrue(d.called, "The deferred should be fired by now.")
def test_do_get_active_description_running(self):
"""Test the _do_get_active_description method when is running."""
ac = ActivationClient(self.config)
self.patch(ac, "is_already_running", lambda: defer.succeed(True))
result = yield ac._do_get_active_description()
self.assertEqual(result, self.client_description)