--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-absorb-unfinished.t Mon Apr 15 22:13:11 2019 -0700
@@ -0,0 +1,30 @@
+ $ cat >> $HGRCPATH << EOF
+ > [extensions]
+ > absorb=
+ > EOF
+
+Abort absorb if there is an unfinished operation.
+
+ $ hg init abortunresolved
+ $ cd abortunresolved
+
+ $ echo "foo1" > foo.whole
+ $ hg commit -Aqm "foo 1"
+
+ $ hg update null
+ 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+ $ echo "foo2" > foo.whole
+ $ hg commit -Aqm "foo 2"
+
+ $ hg --config extensions.rebase= rebase -r 1 -d 0
+ rebasing 1:c3b6dc0e177a "foo 2" (tip)
+ merging foo.whole
+ warning: conflicts while merging foo.whole! (edit, then use 'hg resolve --mark')
+ unresolved conflicts (see hg resolve, then hg rebase --continue)
+ [1]
+
+ $ hg --config extensions.rebase= absorb
+ abort: rebase in progress
+ (use 'hg rebase --continue' or 'hg rebase --abort')
+ [255]
+