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diff --git a/src/nvim/testdir/test61.in b/src/nvim/testdir/test61.in
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+++ b/src/nvim/testdir/test61.in
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+Tests for undo tree.
+Since this script is sourced we need to explicitly break changes up in
+undo-able pieces.  Do that by setting 'undolevels'.
+Also tests :earlier and :later.
+
+STARTTEST
+:echo undotree().entries
+ENDTEST
+
+STARTTEST
+:" Delete three characters and undo
+Gx:set ul=100
+x:set ul=100
+x:.w! test.out
+g-:.w >>test.out
+g-:.w >>test.out
+g-:.w >>test.out
+g-:.w >>test.out
+:"
+:/^111/w >>test.out
+:" Delete three other characters and go back in time step by step
+$x:set ul=100
+x:set ul=100
+x:.w >>test.out
+:sleep 1
+g-:.w >>test.out
+g-:.w >>test.out
+g-:.w >>test.out
+g-:.w >>test.out
+g-:.w >>test.out
+g-:.w >>test.out
+g-:.w >>test.out
+g-:.w >>test.out
+10g+:.w >>test.out
+:"
+:/^222/w >>test.out
+:" Delay for three seconds and go some seconds forward and backward
+:sleep 2
+Aa:set ul=100
+Ab:set ul=100
+Ac:set ul=100
+:.w >>test.out
+:ear 1s
+:.w >>test.out
+:ear 3s
+:.w >>test.out
+:later 1s
+:.w >>test.out
+:later 1h
+:.w >>test.out
+:"
+:" test undojoin
+Goaaaa:set ul=100
+obbbbu:.w >>test.out
+obbbb:set ul=100
+:undojoin
+occccu:.w >>test.out
+:e! Xtest
+ione one one:set ul=100
+:w!
+otwo:set ul=100
+otwo:set ul=100
+:w
+othree:earlier 1f
+:" expect "one one one\ntwo\ntwo"
+:%yank a
+:earlier 1f
+:" expect "one one one"
+:%yank b
+:earlier 1f
+:" expect empty line
+:%yank c
+:later 1f
+:" expect "one one one"
+:%yank d
+:later 1f
+:" expect "one one one\ntwo\ntwo"
+:%yank e
+:later 1f
+:" expect "one one one\ntwo\ntwo\nthree"
+ggO---:0put e
+ggO---:0put d
+ggO---:0put c
+ggO---:0put b
+ggO---:0put a
+ggO---:w >>test.out
+:so small.vim
+:set nocp viminfo+=nviminfo
+:enew!
+oa
+:set ul=100
+ob
+:set ul=100
+o1a2=setline('.','1234')
+
+uu:"
+oc
+:set ul=100
+o1a2=setline('.','1234')
+
+u:"
+od
+:set ul=100
+o1a2=string(123)
+u:"
+:%w >>test.out
+:qa!
+ENDTEST
+
+1111 -----
+2222 -----
+
+123456789