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Don't use fork to start the notebook in js tests...
Don't use fork to start the notebook in js tests It can encounter a weird segfault on OS X with sqlite when Qt is present (?!) The main reason to use the fork was to get the port number, but this is easy now that notebooks write a server-info file. Further advantage is that the symptom of a failed server start is no longer silence and hanging tests, but an actual failure with the server's log output.
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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)