/usr/lib/python3/dist-packages/jupyter_client/tests/test_kernelspec.py is in python3-jupyter-client 4.4.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | """Tests for the KernelSpecManager"""
# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.
import io
import json
from logging import StreamHandler
import os
from os.path import join as pjoin
from subprocess import Popen, PIPE, STDOUT
import sys
import unittest
if str is bytes: # py2
StringIO = io.BytesIO
else:
StringIO = io.StringIO
from ipython_genutils.testing.decorators import onlyif
from ipython_genutils.tempdir import TemporaryDirectory
from jupyter_client import kernelspec
from jupyter_core import paths
from .utils import test_env
sample_kernel_json = {'argv':['cat', '{connection_file}'],
'display_name':'Test kernel',
}
class KernelSpecTests(unittest.TestCase):
def _install_sample_kernel(self, kernels_dir):
"""install a sample kernel in a kernels directory"""
sample_kernel_dir = pjoin(kernels_dir, 'sample')
os.makedirs(sample_kernel_dir)
json_file = pjoin(sample_kernel_dir, 'kernel.json')
with open(json_file, 'w') as f:
json.dump(sample_kernel_json, f)
return sample_kernel_dir
def setUp(self):
self.env_patch = test_env()
self.env_patch.start()
self.sample_kernel_dir = self._install_sample_kernel(
pjoin(paths.jupyter_data_dir(), 'kernels'))
self.ksm = kernelspec.KernelSpecManager()
td2 = TemporaryDirectory()
self.addCleanup(td2.cleanup)
self.installable_kernel = td2.name
with open(pjoin(self.installable_kernel, 'kernel.json'), 'w') as f:
json.dump(sample_kernel_json, f)
def tearDown(self):
self.env_patch.stop()
def test_find_kernel_specs(self):
kernels = self.ksm.find_kernel_specs()
self.assertEqual(kernels['sample'], self.sample_kernel_dir)
def test_get_kernel_spec(self):
ks = self.ksm.get_kernel_spec('SAMPLE') # Case insensitive
self.assertEqual(ks.resource_dir, self.sample_kernel_dir)
self.assertEqual(ks.argv, sample_kernel_json['argv'])
self.assertEqual(ks.display_name, sample_kernel_json['display_name'])
self.assertEqual(ks.env, {})
def test_find_all_specs(self):
kernels = self.ksm.get_all_specs()
self.assertEqual(kernels['sample']['resource_dir'], self.sample_kernel_dir)
self.assertIsNotNone(kernels['sample']['spec'])
def test_kernel_spec_priority(self):
td = TemporaryDirectory()
self.addCleanup(td.cleanup)
sample_kernel = self._install_sample_kernel(td.name)
self.ksm.kernel_dirs.append(td.name)
kernels = self.ksm.find_kernel_specs()
self.assertEqual(kernels['sample'], self.sample_kernel_dir)
self.ksm.kernel_dirs.insert(0, td.name)
kernels = self.ksm.find_kernel_specs()
self.assertEqual(kernels['sample'], sample_kernel)
def test_install_kernel_spec(self):
self.ksm.install_kernel_spec(self.installable_kernel,
kernel_name='tstinstalled',
user=True)
self.assertIn('tstinstalled', self.ksm.find_kernel_specs())
# install again works
self.ksm.install_kernel_spec(self.installable_kernel,
kernel_name='tstinstalled',
user=True)
def test_install_kernel_spec_prefix(self):
td = TemporaryDirectory()
self.addCleanup(td.cleanup)
capture = StringIO()
handler = StreamHandler(capture)
self.ksm.log.addHandler(handler)
self.ksm.install_kernel_spec(self.installable_kernel,
kernel_name='tstinstalled',
prefix=td.name)
captured = capture.getvalue()
self.ksm.log.removeHandler(handler)
self.assertIn("may not be found", captured)
self.assertNotIn('tstinstalled', self.ksm.find_kernel_specs())
# add prefix to path, so we find the spec
self.ksm.kernel_dirs.append(pjoin(td.name, 'share', 'jupyter', 'kernels'))
self.assertIn('tstinstalled', self.ksm.find_kernel_specs())
# Run it again, no warning this time because we've added it to the path
capture = StringIO()
handler = StreamHandler(capture)
self.ksm.log.addHandler(handler)
self.ksm.install_kernel_spec(self.installable_kernel,
kernel_name='tstinstalled',
prefix=td.name)
captured = capture.getvalue()
self.ksm.log.removeHandler(handler)
self.assertNotIn("may not be found", captured)
@onlyif(os.name != 'nt' and not os.access('/usr/local/share', os.W_OK), "needs Unix system without root privileges")
def test_cant_install_kernel_spec(self):
with self.assertRaises(OSError):
self.ksm.install_kernel_spec(self.installable_kernel,
kernel_name='tstinstalled',
user=False)
def test_remove_kernel_spec(self):
path = self.ksm.remove_kernel_spec('sample')
self.assertEqual(path, self.sample_kernel_dir)
def test_remove_kernel_spec_app(self):
p = Popen(
[sys.executable, '-m', 'jupyter_client.kernelspecapp', 'remove', 'sample', '-f'],
stdout=PIPE, stderr=STDOUT,
env=os.environ,
)
out, _ = p.communicate()
self.assertEqual(p.returncode, 0, out.decode('utf8', 'replace'))
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