--- a/tests/simplestorerepo.py	Wed Apr 04 11:31:35 2018 -0700
+++ b/tests/simplestorerepo.py	Wed Apr 04 11:44:38 2018 -0700
@@ -24,6 +24,7 @@
 )
 from mercurial import (
     ancestor,
+    bundlerepo,
     error,
     filelog,
     mdiff,
@@ -587,6 +588,9 @@
     if not repo.local():
         return
 
+    if isinstance(repo, bundlerepo.bundlerepository):
+        raise error.Abort(_('cannot use simple store with bundlerepo'))
+
     class simplestorerepo(repo.__class__):
         def file(self, f):
             return filestorage(self.svfs, f)