call airline#init#bootstrap() function! Util1() let g:count += 1 endfunction function! Util2() let g:count += 2 endfunction function! Util3(...) let g:count = a:0 endfunction describe 'util' before let g:count = 0 end it 'has append wrapper function' Expect airline#util#append('') == '' Expect airline#util#append('1') == ' > 1' end it 'has prepend wrapper function' Expect airline#util#prepend('') == '' Expect airline#util#prepend('1') == '1 < ' end it 'has getwinvar function' Expect airline#util#getwinvar(1, '&statusline', 'foo') == getwinvar(1, '&statusline') Expect airline#util#getwinvar(1, 'asdf', '123') == '123' end it 'has exec funcrefs helper functions' call airline#util#exec_funcrefs([function('Util1'), function('Util2')]) Expect g:count == 3 call airline#util#exec_funcrefs([function('Util3')], 1, 2, 3, 4) Expect g:count == 4 end end