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3959209 c29318c 3959209 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | from collections.abc import Generator
from urllib.parse import urlparse
import httpx
import pytest
from fastmcp.client import Client
from fastmcp.client.transports import StreamableHttpTransport
from fastmcp.server.auth.auth import ClientRegistrationOptions
from fastmcp.server.auth.providers.in_memory import InMemoryOAuthProvider
from fastmcp.server.server import FastMCP
from fastmcp.utilities.tests import HeadlessOAuth, run_server_in_process
def fastmcp_server(issuer_url: str):
"""Create a FastMCP server with OAuth authentication."""
server = FastMCP(
"TestServer",
auth=InMemoryOAuthProvider(
base_url=issuer_url,
client_registration_options=ClientRegistrationOptions(enabled=True),
),
)
@server.tool
def add(a: int, b: int) -> int:
"""Add two numbers together."""
return a + b
@server.resource("resource://test")
def get_test_resource() -> str:
"""Get a test resource."""
return "Hello from authenticated resource!"
return server
def run_server(host: str, port: int, **kwargs) -> None:
fastmcp_server(f"http://{host}:{port}").run(host=host, port=port, **kwargs)
@pytest.fixture(scope="module")
def streamable_http_server() -> Generator[str, None, None]:
with run_server_in_process(run_server, transport="http") as url:
yield f"{url}/mcp"
@pytest.fixture()
def client_unauthorized(streamable_http_server: str) -> Client:
return Client(transport=StreamableHttpTransport(streamable_http_server))
@pytest.fixture()
def client_with_headless_oauth(
streamable_http_server: str,
) -> Generator[Client, None, None]:
"""Client with headless OAuth that bypasses browser interaction."""
client = Client(
transport=StreamableHttpTransport(streamable_http_server),
auth=HeadlessOAuth(mcp_url=streamable_http_server),
)
yield client
async def test_unauthorized(client_unauthorized: Client):
"""Test that unauthenticated requests are rejected."""
with pytest.raises(httpx.HTTPStatusError, match="401 Unauthorized"):
async with client_unauthorized:
pass
async def test_ping(client_with_headless_oauth: Client):
"""Test that we can ping the server."""
async with client_with_headless_oauth:
assert await client_with_headless_oauth.ping()
async def test_list_tools(client_with_headless_oauth: Client):
"""Test that we can list tools."""
async with client_with_headless_oauth:
tools = await client_with_headless_oauth.list_tools()
tool_names = [tool.name for tool in tools]
assert "add" in tool_names
async def test_call_tool(client_with_headless_oauth: Client):
"""Test that we can call a tool."""
async with client_with_headless_oauth:
result = await client_with_headless_oauth.call_tool("add", {"a": 5, "b": 3})
# The add tool returns int which gets wrapped as structured output
# Client unwraps it and puts the actual int in the data field
assert result.data == 8
async def test_list_resources(client_with_headless_oauth: Client):
"""Test that we can list resources."""
async with client_with_headless_oauth:
resources = await client_with_headless_oauth.list_resources()
resource_uris = [str(resource.uri) for resource in resources]
assert "resource://test" in resource_uris
async def test_read_resource(client_with_headless_oauth: Client):
"""Test that we can read a resource."""
async with client_with_headless_oauth:
resource = await client_with_headless_oauth.read_resource("resource://test")
assert resource[0].text == "Hello from authenticated resource!" # type: ignore[attr-defined]
async def test_oauth_server_metadata_discovery(streamable_http_server: str):
"""Test that we can discover OAuth metadata from the running server."""
parsed_url = urlparse(streamable_http_server)
server_base_url = f"{parsed_url.scheme}://{parsed_url.netloc}"
async with httpx.AsyncClient() as client:
# Test OAuth discovery endpoint
metadata_url = f"{server_base_url}/.well-known/oauth-authorization-server"
response = await client.get(metadata_url)
assert response.status_code == 200
metadata = response.json()
assert "authorization_endpoint" in metadata
assert "token_endpoint" in metadata
assert "registration_endpoint" in metadata
# The endpoints should be properly formed URLs
assert metadata["authorization_endpoint"].startswith(server_base_url)
assert metadata["token_endpoint"].startswith(server_base_url)
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