Index: tests/test_io.py
--- tests/test_io.py.orig
+++ tests/test_io.py
@@ -116,7 +116,7 @@ def _file_descriptor_is_open(
 
 
 def _skip_file_descriptor_checks_if_not_supported():
-    if sys.platform == 'win32' or sys.platform.startswith('freebsd'):
+    if sys.platform == 'win32' or sys.platform.startswith('freebsd') or sys.platform.startswith('openbsd'):
         pytest.skip(
             "psutil documentation warns that .open_files() has problems on these"
         )