def ensure_non_empty(self):
"""
Makes sure that the directory exists and is non-empty.
"""
self.ensure_present()
if not os.listdir(self.root):
raise CommandError(
'Directory %s is empty. Use --allowEmptySource to sync anyway.'
% (self.root, ))
def test_command_error(self):
try:
raise CommandError('foo')
except CommandError as e:
assert str(e) == 'foo', str(e)