powerline/tests/test_lib_config.py

53 lines
1.1 KiB
Python

# vim:fileencoding=utf-8:noet
from __future__ import (unicode_literals, division, absolute_import, print_function)
import os
from powerline.lib.config import ConfigLoader
from tests import TestCase
from tests.lib.fsconfig import FSTree
FILE_ROOT = os.path.join(os.path.dirname(__file__), 'cfglib')
class LoadedList(list):
def pop_all(self):
try:
return self[:]
finally:
self[:] = ()
loaded = LoadedList()
def on_load(key):
loaded.append(key)
def check_file(path):
if os.path.exists(path):
return path
else:
raise IOError
class TestLoaderCondition(TestCase):
def test_update_missing(self):
loader = ConfigLoader(run_once=True)
fpath = os.path.join(FILE_ROOT, 'file.json')
self.assertRaises(IOError, loader.load, fpath)
loader.register_missing(check_file, on_load, fpath)
loader.update() # This line must not raise IOError
with FSTree({'file': {'test': 1}}, root=FILE_ROOT):
loader.update()
self.assertEqual(loader.load(fpath), {'test': 1})
self.assertEqual(loaded.pop_all(), [fpath])
if __name__ == '__main__':
from tests import main
main()