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-rw-r--r--src/testdir/test_cmdline.vim11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/testdir/test_cmdline.vim b/src/testdir/test_cmdline.vim
index 8d556faf0a..474638fb00 100644
--- a/src/testdir/test_cmdline.vim
+++ b/src/testdir/test_cmdline.vim
@@ -3353,6 +3353,17 @@ func Test_cmdline_complete_scriptnames()
set wildmenu&
endfunc
+" this was going over the end of IObuff
+func Test_report_error_with_composing()
+ let caught = 'no'
+ try
+ exe repeat('0', 987) .. "0\xdd\x80\xdd\x80\xdd\x80\xdd\x80"
+ catch /E492:/
+ let caught = 'yes'
+ endtry
+ call assert_equal('yes', caught)
+endfunc
+
" Test for expanding 2-letter and 3-letter :substitute command arguments.
" These commands don't accept an argument.
func Test_cmdline_complete_substitute_short()