code: def test_invalid_request(BaseTestHandler):
      from tvm.micro import project_api
  
      fixture = ClientServerFixture(BaseTestHandler())
  
      # Invalid JSON does not get a reply.
      fixture.client_to_server.write(b"foobar\n")
      assert fixture.server.serve_one_request() == False
      assert fixture.server_to_client.read() == b""
  
      # EOF causes a clean return
      assert fixture.server.serve_one_request() == False
      assert fixture.server_to_client.read() == b""
  
      def _request_reply(request):
          fixture.client_to_server.write(request + b"\n")
          assert fixture.server.serve_one_request() == False
          return json.loads(fixture.server_to_client.read())
  
      # Parseable JSON with the wrong schema gets a reply.
      assert _request_reply(b"1") == {
          "error": {
              "code": project_api.server.ErrorCode.INVALID_REQUEST,
              "data": None,
              "message": "request: want dict; got 1",
          },
          "id": None,
          "jsonrpc": "2.0",
      }
  
      # Incorrect JSON-RPC spec version.
      assert _request_reply(b'{"jsonrpc": 1.0}') == {
          "error": {
              "code": project_api.server.ErrorCode.INVALID_REQUEST,
              "data": None,
              "message": 'request["jsonrpc"]: want "2.0"; got 1.0',
          },
          "id": None,
          "jsonrpc": "2.0",
      }
  
      # Method not a str
      assert _request_reply(b'{"jsonrpc": "2.0", "method": 123}') == {
          "error": {
              "code": project_api.server.ErrorCode.INVALID_REQUEST,
              "data": None,
              "message": 'request["method"]: want str; got 123',
          },
          "id": None,
          "jsonrpc": "2.0",
      }
  
      # Method name has invalid characters
      assert _request_reply(
          b'{"jsonrpc": "2.0", "method": "bar!"}'
      ) == {
          "error": {
              "code": project_api.server.ErrorCode.INVALID_REQUEST,
              "data": None,
              "message": "request[\"method\"]: should match regex ^[a-zA-Z0-9_]+$; got 'bar!'",
          },
          "id": None,
          "jsonrpc": "2.0",
      }
  
      # params not a dict
      assert _request_reply(
          b'{"jsonrpc": "2.0", "method": "bar", "params": 123}'
      ) == {
          "error": {
              "code": project_api.server.ErrorCode.INVALID_REQUEST,
              "data": None,
              "message": "request[\"params\"]: want dict; got <class 'int'>",
          },
          "id": None,
          "jsonrpc": "2.0",
      }
  
      # id not valid
      assert _request_reply(
          b'{"jsonrpc": "2.0", "method": "bar", "params": {}, "id": {}}'
      ) == {
          "error": {
              "code": project_api.server.ErrorCode.INVALID_REQUEST,
              "data": None,
              "message": 'request["id"]: want str, number, null; got {}',
          },
          "id": None,
          "jsonrpc": "2.0",
      }
  
imports: import collections
  import io
  import json
  import sys
  import unittest
  from unittest import mock
  import pytest
  import tvm
  import tvm.testing
label_desc: Use image node_id 17 for calling a global function with example usage: test_invalid_request(BaseTestHandler) and returns: json