diff -r 68282a7b29a7 -r 0cb3e02e1d1b tests/simplestorerepo.py
--- a/tests/simplestorerepo.py	Wed Sep 19 11:20:02 2018 -0700
+++ b/tests/simplestorerepo.py	Wed Sep 19 11:22:56 2018 -0700
@@ -422,10 +422,6 @@
 
         return [b'/'.join((self._storepath, f)) for f in entries]
 
-    # Required by verify.
-    def checksize(self):
-        return 0, 0
-
     def add(self, text, meta, transaction, linkrev, p1, p2):
         if meta or text.startswith(b'\1\n'):
             text = revlog.packmeta(meta, text)