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9d0f2daddb
* refactor: improve typing with memory stream type aliases Move memory stream type definitions to models.py and use them throughout the codebase for better type safety and maintainability. GitHub-Issue:#201 * refactor: move streams to ParsedMessage * refactor: update test files to use ParsedMessage Updates test files to work with the ParsedMessage stream type aliases and fixes a line length issue in test_201_client_hangs_on_logging.py. Github-Issue:#201 * refactor: rename ParsedMessage to MessageFrame for clarity 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com> * refactor: move MessageFrame class to types.py for better code organization 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com> * fix pyright * refactor: update websocket client to use MessageFrame Modified the websocket client to work with the new MessageFrame type, preserving raw message text and properly extracting the root JSON-RPC message when sending. Github-Issue:#204 * fix: use NoneType instead of None for type parameters in MessageFrame 🤖 Generated with [Claude Code](https://claude.ai/code) * refactor: rename root to message
78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
import io
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import anyio
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import pytest
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from mcp.server.stdio import stdio_server
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from mcp.types import JSONRPCMessage, JSONRPCRequest, JSONRPCResponse, MessageFrame
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@pytest.mark.anyio
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async def test_stdio_server():
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stdin = io.StringIO()
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stdout = io.StringIO()
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messages = [
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JSONRPCRequest(jsonrpc="2.0", id=1, method="ping"),
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JSONRPCResponse(jsonrpc="2.0", id=2, result={}),
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]
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for message in messages:
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stdin.write(message.model_dump_json(by_alias=True, exclude_none=True) + "\n")
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stdin.seek(0)
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async with stdio_server(
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stdin=anyio.AsyncFile(stdin), stdout=anyio.AsyncFile(stdout)
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) as (read_stream, write_stream):
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received_messages = []
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async with read_stream:
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async for message in read_stream:
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if isinstance(message, Exception):
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raise message
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received_messages.append(message)
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if len(received_messages) == 2:
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break
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# Verify received messages
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assert len(received_messages) == 2
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assert isinstance(received_messages[0].message, JSONRPCMessage)
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assert isinstance(received_messages[0].message.root, JSONRPCRequest)
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assert received_messages[0].message.root.id == 1
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assert received_messages[0].message.root.method == "ping"
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assert isinstance(received_messages[1].message, JSONRPCMessage)
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assert isinstance(received_messages[1].message.root, JSONRPCResponse)
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assert received_messages[1].message.root.id == 2
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# Test sending responses from the server
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responses = [
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MessageFrame(
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message=JSONRPCMessage(
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root=JSONRPCRequest(jsonrpc="2.0", id=3, method="ping")
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),
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raw=None,
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),
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MessageFrame(
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message=JSONRPCMessage(
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root=JSONRPCResponse(jsonrpc="2.0", id=4, result={})
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),
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raw=None,
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),
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]
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async with write_stream:
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for response in responses:
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await write_stream.send(response)
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stdout.seek(0)
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output_lines = stdout.readlines()
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assert len(output_lines) == 2
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# Parse and verify the JSON responses directly
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request_json = JSONRPCRequest.model_validate_json(output_lines[0].strip())
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response_json = JSONRPCResponse.model_validate_json(output_lines[1].strip())
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assert request_json.id == 3
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assert request_json.method == "ping"
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assert response_json.id == 4
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