From c010be1a0296640878a3d0d1b8285c09e3fae5ce Mon Sep 17 00:00:00 2001
From: grossmj <grossmj@gns3.net>
Date: Thu, 23 Jul 2026 18:00:11 +0200
Subject: [PATCH] feat(tests): increase maximum open file descriptors for test
 runs on Unix

---
 tests/conftest.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/tests/conftest.py b/tests/conftest.py
index 4c6ba0525..7271179a0 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -8,6 +8,8 @@ import uuid
 import configparser
 import base64
 import stat
+import resource
+import platform
 
 from fastapi import FastAPI
 from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine
@@ -35,6 +37,19 @@ sys._called_from_test = True
 sys.original_platform = sys.platform
 
 
+def pytest_configure(config):
+    """
+    Increases the maximum number of open file descriptors before running tests (Unix only).
+    """
+
+    if platform.system() != "Windows":
+        soft, hard = resource.getrlimit(resource.RLIMIT_NOFILE)
+        # Set soft limit to hard limit, or a safe high number like 4096
+        new_soft = min(4096, hard)
+        if soft < new_soft:
+            resource.setrlimit(resource.RLIMIT_NOFILE, (new_soft, hard))
+
+
 @pytest_asyncio.fixture(loop_scope="class", scope="class")
 async def app() -> AsyncGenerator[Any, Any]: