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53 lines
2.2 KiB
Python
53 lines
2.2 KiB
Python
"""`docs/run/index.md`: every claim the page makes that is observable without a transport."""
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from typing import Any
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import pytest
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from inline_snapshot import snapshot
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from mcp_types import CallToolResult, TextContent
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from docs_src.run import tutorial001, tutorial002, tutorial003
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from mcp import Client
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from mcp.server import MCPServer
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# See test_index.py for why this is a per-module mark and not a conftest hook.
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pytestmark = [pytest.mark.anyio, pytest.mark.filterwarnings("error::mcp.MCPDeprecationWarning")]
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async def test_the_run_call_is_guarded_so_importing_does_not_start_a_server() -> None:
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"""tutorial001: `run()` sits under `__main__`, so the module imports cleanly and serves in-memory."""
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async with Client(tutorial001.mcp) as client:
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result = await client.call_tool("search_books", {"query": "dune"})
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assert result == snapshot(
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CallToolResult(
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content=[TextContent(type="text", text="Found 3 books matching 'dune'.")],
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structured_content={"result": "Found 3 books matching 'dune'."},
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)
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)
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async def test_the_transport_never_changes_what_the_server_is() -> None:
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"""tutorial001/002/003 differ only in how they run: every client sees the identical tool."""
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async with (
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Client(tutorial001.mcp) as stdio_client,
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Client(tutorial002.mcp) as http_client,
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Client(tutorial003.mcp) as configured_client,
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):
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baseline = await stdio_client.list_tools()
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assert baseline == await http_client.list_tools()
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assert baseline == await configured_client.list_tools()
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def test_transport_options_are_not_constructor_options() -> None:
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"""The page's warning: `port=` belongs to `run()`; the constructor rejects it."""
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options: dict[str, Any] = {"port": 3001}
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with pytest.raises(TypeError, match="unexpected keyword argument 'port'"):
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MCPServer("Bookshop", **options)
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def test_settings_are_constructor_arguments_and_land_on_settings() -> None:
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"""tutorial003: `log_level=` ends up on `mcp.settings`; the defaults are INFO and not-debug."""
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assert tutorial001.mcp.settings.log_level == "INFO"
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assert tutorial001.mcp.settings.debug is False
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assert tutorial003.mcp.settings.log_level == "DEBUG"
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