--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-rebase-partial.t	Thu May 11 11:37:18 2017 -0700
@@ -0,0 +1,95 @@
+Tests rebasing with part of the rebase set already in the
+destination (issue5422)
+
+  $ cat >> $HGRCPATH <<EOF
+  > [extensions]
+  > rebase=
+  > drawdag=$TESTDIR/drawdag.py
+  > 
+  > [experimental]
+  > evolution=createmarkers,allowunstable
+  > 
+  > [alias]
+  > tglog = log -G --template "{rev}: {desc}"
+  > EOF
+
+  $ rebasewithdag() {
+  >   N=`$PYTHON -c "print($N+1)"`
+  >   hg init repo$N && cd repo$N
+  >   hg debugdrawdag
+  >   hg rebase "$@" > _rebasetmp
+  >   r=$?
+  >   grep -v 'saved backup bundle' _rebasetmp
+  >   [ $r -eq 0 ] && hg tglog
+  >   cd ..
+  >   return $r
+  > }
+
+Rebase two commits, of which one is already in the right place
+
+  $ rebasewithdag -r C+D -d B <<EOF
+  > C
+  > |
+  > B D
+  > |/
+  > A
+  > EOF
+  rebasing 2:b18e25de2cf5 "D" (D)
+  already rebased 3:26805aba1e60 "C" (C tip)
+  o  4: D
+  |
+  | o  3: C
+  |/
+  | x  2: D
+  | |
+  o |  1: B
+  |/
+  o  0: A
+  
+Can collapse commits even if one is already in the right place
+
+  $ rebasewithdag --collapse -r C+D -d B <<EOF
+  > C
+  > |
+  > B D
+  > |/
+  > A
+  > EOF
+  rebasing 2:b18e25de2cf5 "D" (D)
+  rebasing 3:26805aba1e60 "C" (C tip)
+  o  4: Collapsed revision
+  |  * D
+  |  * C
+  | x  3: C
+  |/
+  | x  2: D
+  | |
+  o |  1: B
+  |/
+  o  0: A
+  
+Rebase with "holes". The commits after the hole should end up on the parent of
+the hole (B below), not on top of the destination (A).
+
+  $ rebasewithdag -r B+D -d A <<EOF
+  > D
+  > |
+  > C
+  > |
+  > B
+  > |
+  > A
+  > EOF
+  already rebased 1:112478962961 "B" (B)
+  not rebasing ignored 2:26805aba1e60 "C" (C)
+  rebasing 3:f585351a92f8 "D" (D tip)
+  o  4: D
+  |
+  | x  3: D
+  | |
+  | o  2: C
+  |/
+  o  1: B
+  |
+  o  0: A
+