Function try_rpc

test/functional/test_framework/util.py:174–193

Tries to run an rpc command. Test against error code and message if the rpc fails. Returns whether a JSONRPCException was raised.

(code, message, fun, *args, **kwds)

def try_rpc(code, message, fun, *args, **kwds):
    """Tries to run an rpc command.

    Test against error code and message if the rpc fails.
    Returns whether a JSONRPCException was raised."""
    try:
        fun(*args, **kwds)
    except JSONRPCException as e:
        # JSONRPCException was thrown as expected. Check the message and code values are correct.
        if (message is not None) and (message not in e.error['message']):
            raise AssertionError(
                "Expected substring not found in error message:\nsubstring: '{}'\nerror message: '{}'.".format(
                    message, e.error['message']))
        if (code is not None) and (code != e.error["code"]):
            raise AssertionError("Unexpected JSONRPC error code %i" % e.error["code"])
        return True
    except Exception as e:
        raise AssertionError("Unexpected exception raised: " + type(e).__name__)
    else:
        return False


def assert_is_hex_string(string):