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test: isolate MCP reconnect DNS transport

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Maintainer edit: the real MCP reconnect regression test can bind the class-level PinnedDNSAsyncTransport lock to its pytest event loop. Patch the MCP module to use a test-local transport subclass so later async tests do not inherit that loop-bound lock.
This commit is contained in:
chengyongru 2026-07-09 16:25:04 +08:00 committed by Xubin Ren
parent 469d004773
commit bd0dd85f44
1 changed files with 4 additions and 0 deletions
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4
tests/agent/test_mcp_reconnect_crash.py
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@ -128,6 +128,10 @@ def _make_loop(tmp_path, *, mcp_servers: dict) -> AgentLoop:
@pytest.fixture(autouse=True)
def allow_loopback_mcp_urls(monkeypatch: pytest.MonkeyPatch):
"""The repro server runs on 127.0.0.1; allow nanobot to talk to it."""
class TestPinnedDNSAsyncTransport(security_network.PinnedDNSAsyncTransport):
_resolver_lock = asyncio.Lock()
monkeypatch.setattr(mcp_module, "PinnedDNSAsyncTransport", TestPinnedDNSAsyncTransport)
monkeypatch.setattr(
mcp_module,
"validate_url_target",