fastmcp/tests/server/test_context.py
2025-05-06 22:24:26 -04:00

59 lines
2.3 KiB
Python

import warnings
from unittest.mock import MagicMock, patch
import pytest
from starlette.requests import Request
from fastmcp.server.context import Context
class TestContextDeprecations:
def test_get_http_request_deprecation_warning(self):
"""Test that using Context.get_http_request() raises a deprecation warning."""
# Create a mock FastMCP instance
mock_fastmcp = MagicMock()
context = Context(fastmcp=mock_fastmcp)
# Patch the dependency function to return a mock request
mock_request = MagicMock(spec=Request)
with patch(
"fastmcp.server.dependencies.get_http_request", return_value=mock_request
):
# Check that the deprecation warning is raised
with pytest.warns(
DeprecationWarning, match="Context.get_http_request\\(\\) is deprecated"
):
request = context.get_http_request()
# Verify the function still works and returns the request
assert request is mock_request
def test_get_http_request_deprecation_message(self):
"""Test that the deprecation warning has the correct message with guidance."""
# Create a mock FastMCP instance
mock_fastmcp = MagicMock()
context = Context(fastmcp=mock_fastmcp)
# Patch the dependency function to return a mock request
mock_request = MagicMock(spec=Request)
with patch(
"fastmcp.server.dependencies.get_http_request", return_value=mock_request
):
# Capture and check the specific warning message
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
context.get_http_request()
assert len(w) == 1
warning = w[0]
assert issubclass(warning.category, DeprecationWarning)
assert "Context.get_http_request() is deprecated" in str(
warning.message
)
assert (
"Use get_http_request() from fastmcp.server.dependencies instead"
in str(warning.message)
)
assert "https://gofastmcp.com/patterns/http-requests" in str(
warning.message
)