import json

from ansible.compat.tests.mock import patch
from ansible.module_utils import basic
from ansible.module_utils.six.moves import xmlrpc_client
from ansible.module_utils._text import to_bytes


def get_method_name(request_body):
    return xmlrpc_client.loads(request_body)[1]


def mock_request(responses, module_name):
    def transport_request(host, handler, request_body, verbose=0):
        """Fake request"""
        method_name = get_method_name(request_body)
        excepted_name, response = responses.pop(0)
        if method_name == excepted_name:
            if isinstance(response, Exception):
                raise response
            else:
                return response
        else:
            raise Exception('Expected call: %r, called with: %r' % (excepted_name, method_name))

    target = '{0}.xmlrpc_client.Transport.request'.format(module_name)
    return patch(target, side_effect=transport_request)