commit https://github.com/vim/vim/commit/2d820808cda15b3ad9fe674393d1f1e997453d9e Author: Bram Moolenaar <Bram@vim.org> Date: Thu Dec 31 20:46:39 2015 +0100 patch 7.4.1010 Problem: Some developers are unhappy while running tests. Solution: Add a test and some color.

--- a/src/testdir/test_assert.vim
+++ b/src/testdir/test_assert.vim
@@ -17,3 +17,8 @@ func Test_assert_equal()
   let l = [1, 2, 3]
   call assert_equal([1, 2, 3], l)
 endfunc
+
+func Test_user_is_happy()
+  smile
+  sleep 300m
+endfunc