def test_yarn_config(self):
with patch("subprocess.check_output") as check_output:
yarn_registry = "https://private.yarn/manager"
check_output.return_value = b"\n".join([
b'{"type":"info","data":"yarn config"}',
b'{"type":"inspect","data":{"registry":"' +
bytes(yarn_registry, "utf-8") + b'"}}',
b'{"type":"info","data":"npm config"}',
b'{"type":"inspect","data":{"registry":"' +
bytes(yarn_registry, "utf-8") + b'"}}',
])
logger = logging.getLogger("jupyterlab")
config = commands._yarn_config(logger)
self.assertDictEqual(
config,
{
"yarn config": {
"registry": yarn_registry
},
"npm config": {
"registry": yarn_registry
},
},
)
def test_yarn_config_failure(self):
with patch("subprocess.check_output") as check_output:
check_output.side_effect = subprocess.CalledProcessError(
1, ['yarn', 'config', 'list'], stderr=b"yarn config failed.")
logger = logging.getLogger('jupyterlab')
config = commands._yarn_config(logger)
self.assertDictEqual(config, {"yarn config": {}, "npm config": {}})
def test_node_not_available(self):
# patch should be applied on `jupyterlab.commands` and not on `jupyterlab_server.process`
# See https://docs.python.org/3/library/unittest.mock.html#where-to-patch
with patch("jupyterlab.commands.which") as which:
which.side_effect = ValueError("Command not found")
logger = logging.getLogger("jupyterlab")
config = commands._yarn_config(logger)
which.assert_called_once_with("node")
self.assertDictEqual(config, {"yarn config": {}, "npm config": {}})
