diff -r fcc467ca740e -r 20a3b0b27bfe tests/test-evolve.t
--- a/tests/test-evolve.t	Tue Jun 23 15:26:51 2015 -0700
+++ b/tests/test-evolve.t	Mon Jun 22 12:44:21 2015 -0700
@@ -1239,3 +1239,61 @@
   [255]
   $ hg fold --exact "19::"
   2 changesets folded
+
+Check that evolve shows error while handling split commits
+--------------------------------------
+
+  $ cat >> $HGRCPATH <<EOF
+  > [experimental]
+  > evolution=all
+  > EOF
+
+  $ glog -r "18::"
+  o  31:5cc6eda0f00d@default(draft) add gg
+  |
+  | @  30:30ecefd67c0a@default(draft) add unstableifparentisfolded
+  |/
+  | o  20:db3d894869b0@default(draft) add gh
+  |/
+  o  18:0bb66d4c1968@default(draft) a3
+  |
+
+Create a split commit
+  $ printf "oo" > oo;
+  $ printf "pp" > pp;
+  $ hg add oo pp
+  $ hg commit -m "oo+pp"
+  $ mkcommit uu
+  $ hg up 30
+  0 files updated, 0 files merged, 3 files removed, 0 files unresolved
+  $ printf "oo" > oo;
+  $ hg add oo
+  $ hg commit -m "_oo"
+  created new head
+  $ printf "pp" > pp;
+  $ hg add pp
+  $ hg commit -m "_pp"
+  $ hg prune --succ "desc(_oo) + desc(_pp)" -r "desc('oo+pp')"
+  1 changesets pruned
+  1 new unstable changesets
+  $ glog -r "18::"
+  @  35:072908d77206@default(draft) _pp
+  |
+  o  34:68e429987343@default(draft) _oo
+  |
+  | o  33:030868870864@default(draft) add uu
+  | |
+  | x  32:7e9688cf0a1b@default(draft) oo+pp
+  |/
+  | o  31:5cc6eda0f00d@default(draft) add gg
+  | |
+  o |  30:30ecefd67c0a@default(draft) add unstableifparentisfolded
+  |/
+  | o  20:db3d894869b0@default(draft) add gh
+  |/
+  o  18:0bb66d4c1968@default(draft) a3
+  |
+  $ hg evolve --rev "18::"
+  does not handle split parents yet
+
+