rostrum 14.0.1

An efficient implementation of Electrum Server with token support
Documentation 
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#!/usr/bin/env python3
# Copyright (c) 2023 The Bitcoin Unlimited developers
"""
Tests that user gets an error message when they provide invalid json request.
"""

import socket
import asyncio
from test_framework.electrumutil import ElectrumTestFramework
from test_framework.electrumconnection import ElectrumConnection
from test_framework.portseed import electrum_rpc_port


class FeatureInvalidJson(ElectrumTestFramework):
    async def run_test(self):
        # Use ElectrumConnection to wait for rostrum to start
        async def wait_for_rostrum():
            cli = ElectrumConnection()
            await cli.connect()
            cli.disconnect()

        await wait_for_rostrum()

        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
            s.connect(("127.0.0.1", await electrum_rpc_port(n=0)))
            s.sendall("invalid json\n".encode())

            response = s.recv(1024)
            print(response.decode())
            assert response.decode().startswith(
                '{"error":{"code":-32600,"message":"invalid JSON format"},"id":-1,"jsonrpc":"2.0"}'
            )


if __name__ == "__main__":
    asyncio.run(FeatureInvalidJson().main())