|
|
# Copyright (c) IPython Development Team.
|
|
|
# Distributed under the terms of the Modified BSD License.
|
|
|
|
|
|
from __future__ import print_function
|
|
|
|
|
|
import sys
|
|
|
import unittest
|
|
|
|
|
|
from IPython.kernel.inprocess.blocking import BlockingInProcessKernelClient
|
|
|
from IPython.kernel.inprocess.manager import InProcessKernelManager
|
|
|
from IPython.kernel.inprocess.ipkernel import InProcessKernel
|
|
|
from IPython.kernel.tests.utils import assemble_output
|
|
|
from IPython.testing.decorators import skipif_not_matplotlib
|
|
|
from IPython.utils.io import capture_output
|
|
|
from IPython.utils import py3compat
|
|
|
|
|
|
if py3compat.PY3:
|
|
|
from io import StringIO
|
|
|
else:
|
|
|
from StringIO import StringIO
|
|
|
|
|
|
|
|
|
class InProcessKernelTestCase(unittest.TestCase):
|
|
|
|
|
|
def setUp(self):
|
|
|
self.km = InProcessKernelManager()
|
|
|
self.km.start_kernel()
|
|
|
self.kc = self.km.client()
|
|
|
self.kc.start_channels()
|
|
|
self.kc.wait_for_ready()
|
|
|
|
|
|
@skipif_not_matplotlib
|
|
|
def test_pylab(self):
|
|
|
"""Does %pylab work in the in-process kernel?"""
|
|
|
kc = self.kc
|
|
|
kc.execute('%pylab')
|
|
|
out, err = assemble_output(kc.iopub_channel)
|
|
|
self.assertIn('matplotlib', out)
|
|
|
|
|
|
def test_raw_input(self):
|
|
|
""" Does the in-process kernel handle raw_input correctly?
|
|
|
"""
|
|
|
io = StringIO('foobar\n')
|
|
|
sys_stdin = sys.stdin
|
|
|
sys.stdin = io
|
|
|
try:
|
|
|
if py3compat.PY3:
|
|
|
self.kc.execute('x = input()')
|
|
|
else:
|
|
|
self.kc.execute('x = raw_input()')
|
|
|
finally:
|
|
|
sys.stdin = sys_stdin
|
|
|
self.assertEqual(self.km.kernel.shell.user_ns.get('x'), 'foobar')
|
|
|
|
|
|
def test_stdout(self):
|
|
|
""" Does the in-process kernel correctly capture IO?
|
|
|
"""
|
|
|
kernel = InProcessKernel()
|
|
|
|
|
|
with capture_output() as io:
|
|
|
kernel.shell.run_cell('print("foo")')
|
|
|
self.assertEqual(io.stdout, 'foo\n')
|
|
|
|
|
|
kc = BlockingInProcessKernelClient(kernel=kernel, session=kernel.session)
|
|
|
kernel.frontends.append(kc)
|
|
|
kc.execute('print("bar")')
|
|
|
out, err = assemble_output(kc.iopub_channel)
|
|
|
self.assertEqual(out, 'bar\n')
|
|
|
|
|
|
|
