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"""Tests for kernel connection utilities
Authors
-------
* MinRK
"""
#-----------------------------------------------------------------------------
# Copyright (c) 2013, the IPython Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file COPYING.txt, distributed with this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
import json
import os
import nose.tools as nt
from IPython.config import Config
from IPython.consoleapp import IPythonConsoleApp
from IPython.core.application import BaseIPythonApplication
from IPython.utils.tempdir import TemporaryDirectory, TemporaryWorkingDirectory
from IPython.utils.py3compat import str_to_bytes
from IPython.kernel import connect
#-----------------------------------------------------------------------------
# Classes and functions
#-----------------------------------------------------------------------------
class DummyConsoleApp(BaseIPythonApplication, IPythonConsoleApp):
def initialize(self, argv=[]):
BaseIPythonApplication.initialize(self, argv=argv)
self.init_connection_file()
sample_info = dict(ip='1.2.3.4', transport='ipc',
shell_port=1, hb_port=2, iopub_port=3, stdin_port=4, control_port=5,
key=b'abc123', signature_scheme='hmac-md5',
)
def test_write_connection_file():
with TemporaryDirectory() as d:
cf = os.path.join(d, 'kernel.json')
connect.write_connection_file(cf, **sample_info)
nt.assert_true(os.path.exists(cf))
with open(cf, 'r') as f:
info = json.load(f)
info['key'] = str_to_bytes(info['key'])
nt.assert_equal(info, sample_info)
def test_app_load_connection_file():
"""test `ipython console --existing` loads a connection file"""
with TemporaryDirectory() as d:
cf = os.path.join(d, 'kernel.json')
connect.write_connection_file(cf, **sample_info)
app = DummyConsoleApp(connection_file=cf)
app.initialize(argv=[])
for attr, expected in sample_info.items():
if attr in ('key', 'signature_scheme'):
continue
value = getattr(app, attr)
nt.assert_equal(value, expected, "app.%s = %s != %s" % (attr, value, expected))
def test_get_connection_file():
cfg = Config()
with TemporaryWorkingDirectory() as d:
cfg.ProfileDir.location = d
cf = 'kernel.json'
app = DummyConsoleApp(config=cfg, connection_file=cf)
app.initialize(argv=[])
profile_cf = os.path.join(app.profile_dir.location, 'security', cf)
nt.assert_equal(profile_cf, app.connection_file)
with open(profile_cf, 'w') as f:
f.write("{}")
nt.assert_true(os.path.exists(profile_cf))
nt.assert_equal(connect.get_connection_file(app), profile_cf)
app.connection_file = cf
nt.assert_equal(connect.get_connection_file(app), profile_cf)
def test_find_connection_file():
cfg = Config()
with TemporaryDirectory() as d:
cfg.ProfileDir.location = d
cf = 'kernel.json'
app = DummyConsoleApp(config=cfg, connection_file=cf)
app.initialize(argv=[])
BaseIPythonApplication._instance = app
profile_cf = os.path.join(app.profile_dir.location, 'security', cf)
with open(profile_cf, 'w') as f:
f.write("{}")
for query in (
'kernel.json',
'kern*',
'*ernel*',
'k*',
):
nt.assert_equal(connect.find_connection_file(query), profile_cf)
BaseIPythonApplication._instance = None
def test_get_connection_info():
with TemporaryDirectory() as d:
cf = os.path.join(d, 'kernel.json')
connect.write_connection_file(cf, **sample_info)
json_info = connect.get_connection_info(cf)
info = connect.get_connection_info(cf, unpack=True)
nt.assert_equal(type(json_info), type(""))
nt.assert_equal(info, sample_info)
info2 = json.loads(json_info)
info2['key'] = str_to_bytes(info2['key'])
nt.assert_equal(info2, sample_info)
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