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#-------------------------------------------------------------------------------
# Copyright (C) 2012 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-------------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from __future__ import print_function
# Standard library imports
import unittest
# Local imports
from IPython.kernel.inprocess.blocking import BlockingInProcessKernelClient
from IPython.kernel.inprocess.manager import InProcessKernelManager
#-----------------------------------------------------------------------------
# Test case
#-----------------------------------------------------------------------------
class InProcessKernelManagerTestCase(unittest.TestCase):
def test_interface(self):
""" Does the in-process kernel manager implement the basic KM interface?
"""
km = InProcessKernelManager()
self.assert_(not km.has_kernel)
km.start_kernel()
self.assert_(km.has_kernel)
self.assert_(km.kernel is not None)
kc = BlockingInProcessKernelClient(kernel=km.kernel)
self.assert_(not kc.channels_running)
kc.start_channels()
self.assert_(kc.channels_running)
old_kernel = km.kernel
km.restart_kernel()
self.assert_(km.kernel is not None)
self.assertNotEquals(km.kernel, old_kernel)
km.shutdown_kernel()
self.assert_(not km.has_kernel)
self.assertRaises(NotImplementedError, km.interrupt_kernel)
self.assertRaises(NotImplementedError, km.signal_kernel, 9)
kc.stop_channels()
self.assert_(not kc.channels_running)
def test_execute(self):
""" Does executing code in an in-process kernel work?
"""
km = InProcessKernelManager()
km.start_kernel()
kc = BlockingInProcessKernelClient(kernel=km.kernel)
kc.start_channels()
kc.execute('foo = 1')
self.assertEquals(km.kernel.shell.user_ns['foo'], 1)
def test_complete(self):
""" Does requesting completion from an in-process kernel work?
"""
km = InProcessKernelManager()
km.start_kernel()
kc = BlockingInProcessKernelClient(kernel=km.kernel)
kc.start_channels()
km.kernel.shell.push({'my_bar': 0, 'my_baz': 1})
kc.complete('my_ba', 'my_ba', 5)
msg = kc.get_shell_msg()
self.assertEqual(msg['header']['msg_type'], 'complete_reply')
self.assertEqual(sorted(msg['content']['matches']),
['my_bar', 'my_baz'])
def test_object_info(self):
""" Does requesting object information from an in-process kernel work?
"""
km = InProcessKernelManager()
km.start_kernel()
kc = BlockingInProcessKernelClient(kernel=km.kernel)
kc.start_channels()
km.kernel.shell.user_ns['foo'] = 1
kc.object_info('foo')
msg = kc.get_shell_msg()
self.assertEquals(msg['header']['msg_type'], 'object_info_reply')
self.assertEquals(msg['content']['name'], 'foo')
self.assertEquals(msg['content']['type_name'], 'int')
def test_history(self):
""" Does requesting history from an in-process kernel work?
"""
km = InProcessKernelManager()
km.start_kernel()
kc = BlockingInProcessKernelClient(kernel=km.kernel)
kc.start_channels()
kc.execute('%who')
kc.history(hist_access_type='tail', n=1)
msg = kc.shell_channel.get_msgs()[-1]
self.assertEquals(msg['header']['msg_type'], 'history_reply')
history = msg['content']['history']
self.assertEquals(len(history), 1)
self.assertEquals(history[0][2], '%who')
if __name__ == '__main__':
unittest.main()
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