diff --git a/src/testdir/test_set.vim b/src/testdir/test_set.vim
index 7215772..4035248 100644
--- a/src/testdir/test_set.vim
+++ b/src/testdir/test_set.vim
@@ -1,5 +1,7 @@
 " Tests for the :set command
 
+source check.vim
+
 function Test_set_backslash()
   let isk_save = &isk
 
@@ -45,4 +47,32 @@
   setglobal textwidth&
 endfunc
 
+func Test_set_termcap()
+  CheckNotGui
+
+  let lines = split(execute('set termcap'), "\n")
+  call assert_match('--- Terminal codes ---', lines[0])
+  " four columns
+  call assert_match('t_..=.*t_..=.*t_..=.*t_..=', lines[1])
+
+  for keys_idx in range(len(lines))
+    if lines[keys_idx] =~ '--- Terminal keys ---'
+      break
+    endif
+  endfor
+  call assert_true(keys_idx < len(lines))
+  " three columns
+  call assert_match('t_.. .*t_.. .*t_.. ', lines[keys_idx + 1])
+
+  let more_lines = split(execute('set! termcap'), "\n")
+  for i in range(len(more_lines))
+    if more_lines[i] =~ '--- Terminal keys ---'
+      break
+    endif
+  endfor
+  call assert_true(i < len(more_lines))
+  call assert_true(i > keys_idx)
+  call assert_true(len(more_lines) - i > len(lines) - keys_idx)
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab