--- a/tests/test-evolve-phase-divergence.t	Sun Nov 10 18:08:57 2019 +0530
+++ b/tests/test-evolve-phase-divergence.t	Sun Nov 10 16:32:34 2019 +0530
@@ -2032,4 +2032,13 @@
   1 changesets pruned
 
   $ hg touch --hidden -r 2
-  1 new phase-divergent changesets
+  abort: touch of 603041d63ba0 creates phase-divergence with 7c3bad9141dc
+  (add --verbose for details or see 'hg help evolution.instability')
+  [255]
+  $ hg touch --hidden -r 2 --verbose
+  abort: touch of 603041d63ba0 creates phase-divergence with 7c3bad9141dc
+      changeset 603041d63ba0 has a public predecessor as 7c3bad9141dc
+      rewritting changeset 603041d63ba0 would create phase-divergence
+      set experimental.evolution.allowdivergence=True to overwrite this check
+  (see 'hg help evolution.instability' for details on phase-divergence)
+  [255]