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fix: wait for HTTP server readiness via httpx request

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This commit is contained in:
Chris Guidry 2025-12-05 12:33:29 -05:00
commit bc587208aa
1 changed files with 9 additions and 2 deletions
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11
src/fastmcp/utilities/tests.py
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@ -212,8 +212,15 @@ async def run_server_async(
# Wait for server lifespan to be ready
await server._started.wait()
# Give uvicorn a moment to bind the port after lifespan is ready
await asyncio.sleep(0.1)
# Wait for HTTP server to be ready by making a request
url = f"http://{host}:{port}{path}"
async with httpx.AsyncClient() as client:
for _ in range(50): # 50 * 0.1s = 5s timeout
try:
await client.get(url, timeout=0.1)
break
except (httpx.ConnectError, httpx.TimeoutException):
await asyncio.sleep(0.1)
try:
yield f"http://{host}:{port}{path}"