diff --git a/src/testdir/test_terminal.vim b/src/testdir/test_terminal.vim
index 3e263ef..cd7f477 100644
--- a/src/testdir/test_terminal.vim
+++ b/src/testdir/test_terminal.vim
@@ -467,6 +467,8 @@
   bwipe!
   call assert_equal([7, 27], size)
 
+  call assert_fails("call term_start(cmd, {'term_rows': -1})", 'E475:')
+  call assert_fails("call term_start(cmd, {'term_rows': 1001})", 'E475:')
   if has('float')
     call assert_fails("call term_start(cmd, {'term_rows': 10.0})", 'E805:')
   endif