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test_serverextensions.py
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/
test_serverextensions.py
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import os
import site
import sys
from unittest import TestCase
from unittest.mock import patch
from ipython_genutils.tempdir import TemporaryDirectory
from ipython_genutils import py3compat
from notebook.config_manager import BaseJSONConfigManager
from traitlets.tests.utils import check_help_all_output
from jupyter_core import paths
from notebook.serverextensions import toggle_serverextension_python
from notebook import nbextensions, extensions
from notebook.notebookapp import NotebookApp
from notebook.nbextensions import _get_config_dir
from types import SimpleNamespace
from collections import OrderedDict
def test_help_output():
check_help_all_output('notebook.serverextensions')
check_help_all_output('notebook.serverextensions', ['enable'])
check_help_all_output('notebook.serverextensions', ['disable'])
check_help_all_output('notebook.serverextensions', ['install'])
check_help_all_output('notebook.serverextensions', ['uninstall'])
outer_file = __file__
class MockExtensionModule:
__file__ = outer_file
@staticmethod
def _jupyter_server_extension_paths():
return [{
'module': '_mockdestination/index'
}]
loaded = False
def load_jupyter_server_extension(self, app):
self.loaded = True
class MockEnvTestCase(TestCase):
def tempdir(self):
td = TemporaryDirectory()
self.tempdirs.append(td)
return py3compat.cast_unicode(td.name)
def setUp(self):
self.tempdirs = []
self._mock_extensions = []
self.test_dir = self.tempdir()
self.data_dir = os.path.join(self.test_dir, 'data')
self.config_dir = os.path.join(self.test_dir, 'config')
self.system_data_dir = os.path.join(self.test_dir, 'system_data')
self.system_config_dir = os.path.join(self.test_dir, 'system_config')
self.system_path = [self.system_data_dir]
self.system_config_path = [self.system_config_dir]
self.patches = []
p = patch.dict('os.environ', {
'JUPYTER_CONFIG_DIR': self.config_dir,
'JUPYTER_DATA_DIR': self.data_dir,
})
self.patches.append(p)
for mod in (paths, nbextensions):
p = patch.object(mod,
'SYSTEM_JUPYTER_PATH', self.system_path)
self.patches.append(p)
p = patch.object(mod,
'ENV_JUPYTER_PATH', [])
self.patches.append(p)
for mod in (paths, extensions):
p = patch.object(mod,
'SYSTEM_CONFIG_PATH', self.system_config_path)
self.patches.append(p)
p = patch.object(mod,
'ENV_CONFIG_PATH', [])
self.patches.append(p)
# avoid adding the user site to the config paths with jupyter-core >= 4.9
# https://github.com/jupyter/jupyter_core/pull/242
p = patch.object(site,
'ENABLE_USER_SITE', False)
self.patches.append(p)
for p in self.patches:
p.start()
self.addCleanup(p.stop)
# verify our patches
self.assertEqual(paths.jupyter_config_path(), [self.config_dir] + self.system_config_path)
self.assertEqual(extensions._get_config_dir(user=False), self.system_config_dir)
self.assertEqual(paths.jupyter_path(), [self.data_dir] + self.system_path)
def tearDown(self):
for modulename in self._mock_extensions:
sys.modules.pop(modulename)
def _inject_mock_extension(self, modulename='mockextension'):
sys.modules[modulename] = ext = MockExtensionModule()
self._mock_extensions.append(modulename)
return ext
class TestInstallServerExtension(MockEnvTestCase):
def _get_config(self, user=True):
cm = BaseJSONConfigManager(config_dir=_get_config_dir(user))
data = cm.get("jupyter_notebook_config")
return data.get("NotebookApp", {}).get("nbserver_extensions", {})
def test_enable(self):
self._inject_mock_extension()
toggle_serverextension_python('mockextension', True)
config = self._get_config()
assert config['mockextension']
def test_disable(self):
self._inject_mock_extension()
toggle_serverextension_python('mockextension', True)
toggle_serverextension_python('mockextension', False)
config = self._get_config()
assert not config['mockextension']
def test_merge_config(self):
# enabled at sys level
mock_sys = self._inject_mock_extension('mockext_sys')
# enabled at sys, disabled at user
mock_both = self._inject_mock_extension('mockext_both')
# enabled at user
mock_user = self._inject_mock_extension('mockext_user')
# enabled at Python
mock_py = self._inject_mock_extension('mockext_py')
toggle_serverextension_python('mockext_sys', enabled=True, user=False)
toggle_serverextension_python('mockext_user', enabled=True, user=True)
toggle_serverextension_python('mockext_both', enabled=True, user=False)
toggle_serverextension_python('mockext_both', enabled=False, user=True)
app = NotebookApp(nbserver_extensions={'mockext_py': True})
app.init_server_extension_config()
app.init_server_extensions()
assert mock_user.loaded
assert mock_sys.loaded
assert mock_py.loaded
assert not mock_both.loaded
class TestOrderedServerExtension(MockEnvTestCase):
"""
Test that Server Extensions are loaded _in order_
"""
def setUp(self):
super().setUp()
mockextension1 = SimpleNamespace()
mockextension2 = SimpleNamespace()
def load_jupyter_server_extension(obj):
obj.mockI = True
obj.mock_shared = 'I'
mockextension1.load_jupyter_server_extension = load_jupyter_server_extension
def load_jupyter_server_extension(obj):
obj.mockII = True
obj.mock_shared = 'II'
mockextension2.load_jupyter_server_extension = load_jupyter_server_extension
sys.modules['mockextension2'] = mockextension2
sys.modules['mockextension1'] = mockextension1
def tearDown(self):
super().tearDown()
del sys.modules['mockextension2']
del sys.modules['mockextension1']
def test_load_ordered(self):
app = NotebookApp()
app.nbserver_extensions = OrderedDict([('mockextension2',True),('mockextension1',True)])
app.init_server_extensions()
assert app.mockII is True, "Mock II should have been loaded"
assert app.mockI is True, "Mock I should have been loaded"
assert app.mock_shared == 'II', "Mock II should be loaded after Mock I"