test_129_resource_templates.py•1.59 kB
import pytest
from mcp import types
from mcp.server.fastmcp import FastMCP
@pytest.mark.anyio
async def test_resource_templates():
# Create an MCP server
mcp = FastMCP("Demo")
# Add a dynamic greeting resource
@mcp.resource("greeting://{name}")
def get_greeting(name: str) -> str:
"""Get a personalized greeting"""
return f"Hello, {name}!"
@mcp.resource("users://{user_id}/profile")
def get_user_profile(user_id: str) -> str:
"""Dynamic user data"""
return f"Profile data for user {user_id}"
# Get the list of resource templates using the underlying server
# Note: list_resource_templates() returns a decorator that wraps the handler
# The handler returns a ServerResult with a ListResourceTemplatesResult inside
result = await mcp._mcp_server.request_handlers[types.ListResourceTemplatesRequest](
types.ListResourceTemplatesRequest(params=None)
)
assert isinstance(result.root, types.ListResourceTemplatesResult)
templates = result.root.resourceTemplates
# Verify we get both templates back
assert len(templates) == 2
# Verify template details
greeting_template = next(t for t in templates if t.name == "get_greeting")
assert greeting_template.uriTemplate == "greeting://{name}"
assert greeting_template.description == "Get a personalized greeting"
profile_template = next(t for t in templates if t.name == "get_user_profile")
assert profile_template.uriTemplate == "users://{user_id}/profile"
assert profile_template.description == "Dynamic user data"