Parallelizing unit tests

Author: jc

pyproject.toml

@@ -42,6 +42,7 @@ dev = [
     "pytest>=8.4.2",
     "pytest-asyncio>=1.2.0",
     "pytest-cov>=4.0.0",
+    "pytest-xdist>=3.5.0",
     "ruff>=0.1.0",
     "mypy>=1.0.0",
     "types-authlib>=1.6.2.20250914",
@@ -96,7 +97,7 @@ disallow_incomplete_defs = false
 
 [tool.pytest.ini_options]
 minversion = "7.0"
-addopts = "-q --tb=short"
+addopts = "-q --tb=short -n auto --dist=loadgroup"
 python_files = "tests.py test_*.py *_tests.py"
 pythonpath = ["."]
 testpaths = ["tests"]
@@ -105,4 +106,5 @@ markers = [
     "manual: marks tests as requiring manual intervention (deselect with '-m \"not manual\"')",
     "slow: marks tests as slow (deselect with '-m \"not slow\"')",
     "k8s: marks tests that require Kubernetes cluster",
+    "serial: marks tests that must run serially (not in parallel)",
 ]

tests/unit/app/api/test_ratelimit.py

@@ -21,6 +21,9 @@
     not REDIS_AVAILABLE, reason="Redis is not running or not accessible"
 )
 
+# Mark Redis tests to run in same xdist group to avoid shared state issues
+redis_xdist_group = pytest.mark.xdist_group("redis_rate_limiter")
+
 
 class TestRateLimiting:
     """Test rate limiting functionality."""
@@ -37,7 +40,7 @@ def test_config(self) -> ConfigData:
             "local",
             pytest.param(
                 "redis",
-                marks=requires_redis,
+                marks=[requires_redis, redis_xdist_group],
             ),
         ]
     )