patch 8.2.4833: failure of mapping not checked for
Problem: Failure of mapping not checked for.
Solution: Check return value of ins_typebuf(). (closes #10299)
diff --git a/src/testdir/test_termcodes.vim b/src/testdir/test_termcodes.vim
index ddbe707..c9b0c7b 100644
--- a/src/testdir/test_termcodes.vim
+++ b/src/testdir/test_termcodes.vim
@@ -2439,8 +2439,9 @@
func Test_simplify_ctrl_at()
" feeding unsimplified CTRL-@ should still trigger i_CTRL-@
- call feedkeys("ifoo\<Esc>A\<*C-@>", 'xt')
- call assert_equal('foofoo', getline(1))
+ call feedkeys("ifoo\<Esc>A\<*C-@>x", 'xt')
+ call assert_equal('foofo', getline(1))
+ bw!
endfunc