patch 8.0.0478: tests use assert_true(0) and assert_false(1) to report errors commit https://github.com/vim/vim/commit/37175409d766ce67f2548dffa6d73451379b5737 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 18 20:18:45 2017 +0100 patch 8.0.0478: tests use assert_true(0) and assert_false(1) to report errors Problem: Tests use assert_true(0) and assert_false(1) to report errors. Solution: Use assert_report().

" Test feedkeys() function.

func Test_feedkeys_x_with_empty_string()
  new
  call feedkeys("ifoo\<Esc>")
  call assert_equal('', getline('.'))
  call feedkeys('', 'x')
  call assert_equal('foo', getline('.'))

  " check it goes back to normal mode immediately.
  call feedkeys('i', 'x')
  call assert_equal('foo', getline('.'))
  quit!
endfunc