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test_kernelspec.py
65 lines | 2.7 KiB | text/x-python | PythonLexer
import json
import os
from os.path import join as pjoin
import unittest
from IPython.testing.decorators import onlyif
from IPython.utils.tempdir import TemporaryDirectory
from IPython.kernel import kernelspec
sample_kernel_json = {'argv':['cat', '{connection_file}'],
'display_name':'Test kernel',
'language':'bash',
}
class KernelSpecTests(unittest.TestCase):
def setUp(self):
td = TemporaryDirectory()
self.addCleanup(td.cleanup)
self.sample_kernel_dir = pjoin(td.name, 'kernels', 'Sample')
os.makedirs(self.sample_kernel_dir)
json_file = pjoin(self.sample_kernel_dir, 'kernel.json')
with open(json_file, 'w') as f:
json.dump(sample_kernel_json, f)
self.ksm = kernelspec.KernelSpecManager(ipython_dir=td.name)
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 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.language, sample_kernel_json['language'])
self.assertEqual(ks.codemirror_mode, sample_kernel_json['language'])
self.assertEqual(ks.env, {})
def test_install_kernel_spec(self):
self.ksm.install_kernel_spec(self.installable_kernel,
kernel_name='tstinstalled')
self.assertIn('tstinstalled', self.ksm.find_kernel_specs())
with self.assertRaises(OSError):
self.ksm.install_kernel_spec(self.installable_kernel,
kernel_name='tstinstalled')
# Smoketest that this succeeds
self.ksm.install_kernel_spec(self.installable_kernel,
kernel_name='tstinstalled',
replace=True)
@onlyif(os.name != 'nt' and not os.access('/usr/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',
system=True)