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cache kernel_info reply for protocol adaptation...
cache kernel_info reply for protocol adaptation WebSocket connections will not open until kernel_info is retrieved, removing a race condition waiting for the reply to indicate adaptation, which could result in a v5 message being sent to a v4 kernel. The reply is cached, so that it need not be requested on each new connection.
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test_kernelmanager.py
54 lines | 1.5 KiB | text/x-python | PythonLexer
/ IPython / kernel / tests / test_kernelmanager.py
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"""Tests for the notebook kernel and session manager"""
from subprocess import PIPE
import time
from unittest import TestCase
from IPython.testing import decorators as dec
from IPython.config.loader import Config
from IPython.kernel import KernelManager
class TestKernelManager(TestCase):
def _get_tcp_km(self):
c = Config()
km = KernelManager(config=c)
return km
def _get_ipc_km(self):
c = Config()
c.KernelManager.transport = 'ipc'
c.KernelManager.ip = 'test'
km = KernelManager(config=c)
return km
def _run_lifecycle(self, km):
km.start_kernel(stdout=PIPE, stderr=PIPE)
self.assertTrue(km.is_alive())
km.restart_kernel(now=True)
self.assertTrue(km.is_alive())
km.interrupt_kernel()
self.assertTrue(isinstance(km, KernelManager))
km.shutdown_kernel(now=True)
def test_tcp_lifecycle(self):
km = self._get_tcp_km()
self._run_lifecycle(km)
@dec.skip_win32
def test_ipc_lifecycle(self):
km = self._get_ipc_km()
self._run_lifecycle(km)
def test_get_connect_info(self):
km = self._get_tcp_km()
cinfo = km.get_connection_info()
keys = sorted(cinfo.keys())
expected = sorted([
'ip', 'transport',
'hb_port', 'shell_port', 'stdin_port', 'iopub_port', 'control_port',
'key', 'signature_scheme',
])
self.assertEqual(keys, expected)