From ada3ade843bb0f03b0ca274698ea0f6e13bf1033 Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Wed, 9 Aug 2023 06:07:33 -0400
Subject: [PATCH] test(build): PytestCollectionWarning should be an error

---
 pyproject.toml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pyproject.toml b/pyproject.toml
index cf9c2c0e4..268573082 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,6 +40,8 @@ filterwarnings = [
     "ignore:the imp module is deprecated in favour of importlib:DeprecationWarning",
     "ignore:distutils Version classes are deprecated:DeprecationWarning",
     "ignore:The distutils package is deprecated and slated for removal in Python 3.12:DeprecationWarning",
+    # Pytest warns if it can't collect things that seem to be tests. This should be an error.
+    "error::pytest.PytestCollectionWarning",
 ]
 
 # xfail tests that pass should fail the test suite