Adding client tests for streamable http against official GitHub Remote MCP Server

[didier-durand]

Hi,

Github released a few days ago in Preview its official Remote MCP Server working on streamable http: https://github.blog/changelog/2025-06-12-remote-github-mcp-server-is-now-available-in-public-preview/

Tech details at https://docs.github.com/en/copilot/customizing-copilot/using-model-context-protocol/using-the-github-mcp-server

So, we built some tests against this remote MCP server to validate fastmcp streamable http client against the independent implementation. They can be run on a basis of continuous testing.

To run them on the fastmcp repo, a Github PAT (Personal Access Token) has to be added [I don't have credentials to do it on fastmcp repo ]with name MCP_GITHUB_PAT to match code. It is converted to a corresponding env var by the Github action: see my own Github workflow runnning those tests as well on my Strands Agents repo: https://github.com/didier-durand/strands-serverless/blob/5b1d087fef53fa8df4b2278f825a1c1551262fc7/.github/workflows/build_python.yaml#L28

Those tests work fine on my laptop and fine on GithHub with PAT added

Testing started at 17:53 ...
Launching pytest with arguments /Users/didduran/dev/fastmcp/tests/client/test_github_mcp_remote.py --no-header --no-summary -q in /Users/didduran/dev/fastmcp/tests/client

============================= test session starts ==============================
collecting ... collected 7 items

test_github_mcp_remote.py::test_connect_disconnect 
test_github_mcp_remote.py::test_ping 
test_github_mcp_remote.py::test_list_tools 
test_github_mcp_remote.py::test_list_resources 
test_github_mcp_remote.py::test_list_prompts 
test_github_mcp_remote.py::test_call_tool_ko 
test_github_mcp_remote.py::test_call_tool_list_commits 

======================== 7 passed, 2 warnings in 7.01s =========================
PASSED                [ 14%]PASSED                              [ 28%]PASSED                        [ 42%]PASSED                    [ 57%]PASSED                      [ 71%]PASSED                      [ 85%]PASSED            [100%]
Process finished with exit code 0

[Copilot]

Pull Request Overview

Adds a suite of asynchronous pytest tests to validate the StreamableHttpTransport client against GitHub’s new Remote MCP Server.

• Introduces a fixture to configure the client with a GitHub PAT and base URL.
• Covers connect/disconnect, ping, listing tools/resources/prompts, and tool invocation success/failure.

[didier-durand]

@jlowin :
Hi,
let me know:

1. if you want me to apply to Copilot suggestions. I am happy to do it.
2. if you want some additional tests to be added for other client features to be tested against the Github MCP server. Give me your list and I'll write them

[didier-durand]

Applied remaining changes from review and updated branch. Can be merged now.

[didier-durand]

Hi, what's blocking this merge?
it looks good to me.