--- a/tests/test-revset.t	Thu Aug 25 05:12:25 2022 +0200
+++ b/tests/test-revset.t	Mon Jul 25 05:30:06 2022 +0200
@@ -2974,6 +2974,25 @@
   1 b11  m12  u111 112 7200
   0 b12  m111 u112 111 10800
 
+random sort
+
+  $ hg log --rev 'sort(all(), "random")' | wc -l
+  \s*8 (re)
+  $ hg log --rev 'sort(all(), "-random")' | wc -l
+  \s*8 (re)
+  $ hg log --rev 'sort(all(), "random", random.seed=celeste)'
+  6 b111 t2   tu   130 0
+  7 b111 t3   tu   130 0
+  4 b111 m112 u111 110 14400
+  3 b112 m111 u11  120 0
+  5 b111 t1   tu   130 0
+  0 b12  m111 u112 111 10800
+  1 b11  m12  u111 112 7200
+  2 b111 m11  u12  111 3600
+  $ hg log --rev 'first(sort(all(), "random", random.seed=celeste))'
+  6 b111 t2   tu   130 0
+
+
 topographical sorting can't be combined with other sort keys, and you can't
 use the topo.firstbranch option when topo sort is not active: