Cannot put if the server storage starts empty.

[fiendish]

pytest-sftpserver/pytest_sftpserver/sftp/content_provider.py

Lines 75 to 77 in 8f90e80

	def _find_object_for_path(self, path):
	if not self.content_object:
	return None

makes it impossible to create things starting from scratch using SFTPServer(content_object={}) because e.g. mkdir('test') invokes self._get_path_components('test') which returns ('', 'test') and then self._find_object_for_path('') returns None instead of the global storage object.

(the default content_object should be {} and not None too)

Fixed ContentProvider is

class FixedContentProvider(ContentProvider):  # fixes default content_object
    def __init__(self, content_object=None):
        self.content_object = content_object or {}

    def is_dir(self, path):  # fixes wrong mode attr on binary uploads
        return not isinstance(self.get(path), (bytes, str, int))

    def _find_object_for_path(self, path):  # fixes adding to empty storage
        if path == '':
            return self.content_object
        else:
            return super()._find_object_for_path(path)