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-rw-r--r--src/nvim/testdir/test_vartabs.vim2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/nvim/testdir/test_vartabs.vim b/src/nvim/testdir/test_vartabs.vim
index 32ad64cda4..e12c71d521 100644
--- a/src/nvim/testdir/test_vartabs.vim
+++ b/src/nvim/testdir/test_vartabs.vim
@@ -379,6 +379,8 @@ func Test_vartabs_shiftwidth()
let lines = ScreenLines([1, 3], winwidth(0))
call s:compare_lines(expect4, lines)
+ call assert_fails('call shiftwidth([])', 'E745:')
+
" cleanup
bw!
bw!