diff -r 1b23aaf5eb7b -r f9a52a9603f9 tests/test-storage.py
--- a/tests/test-storage.py	Fri Oct 20 09:12:22 2023 +0200
+++ b/tests/test-storage.py	Tue Oct 31 17:34:31 2023 +0100
@@ -15,6 +15,17 @@
 from mercurial.testing import storage as storagetesting
 
 try:
+    from mercurial import rustext
+
+    rustext.__name__
+    # Does not pass with pure Rust index
+    import sys
+
+    sys.exit(80)
+except ImportError:
+    pass
+
+try:
     from hgext import sqlitestore
 except ImportError:
     sqlitestore = None