Enable pytest xfail_strict

adamchainz · adamchainz · commit 9ca4b218e173 · 2024-08-06T15:06:29.000+01:00
diff --git a/pyproject.toml b/pyproject.toml
@@ -62,6 +62,7 @@ addopts = """\
     --strict-config
     --strict-markers
     """
+xfail_strict = true
 
 [tool.coverage.run]
 branch = true
