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-rw-r--r--src/nvim/testdir/test_substitute.vim22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/nvim/testdir/test_substitute.vim b/src/nvim/testdir/test_substitute.vim
index bd44079882..e06da3b44f 100644
--- a/src/nvim/testdir/test_substitute.vim
+++ b/src/nvim/testdir/test_substitute.vim
@@ -851,6 +851,28 @@ func Test_sub_change_window()
delfunc Repl
endfunc
+" This was undoign a change in between computing the length and using it.
+func Do_Test_sub_undo_change()
+ new
+ norm o0000000000000000000000000000000000000000000000000000
+ silent! s/\%')/\=Repl()
+ bwipe!
+endfunc
+
+func Test_sub_undo_change()
+ func Repl()
+ silent! norm g-
+ endfunc
+ call Do_Test_sub_undo_change()
+
+ func! Repl()
+ silent earlier
+ endfunc
+ call Do_Test_sub_undo_change()
+
+ delfunc Repl
+endfunc
+
" Test for the 2-letter and 3-letter :substitute commands
func Test_substitute_short_cmd()
new