Tests for getbufvar(), getwinvar(), gettabvar() and gettabwinvar().
vim: set ft=vim :

STARTTEST
:so small.vim
:"
:" test for getbufvar()
:let b:var_num = 1234
:let def_num = 5678
:$put =string(getbufvar(1, 'var_num'))
:$put =string(getbufvar(1, 'var_num', def_num))
:$put =string(getbufvar(1, ''))
:$put =string(getbufvar(1, '', def_num))
:unlet b:var_num
:$put =string(getbufvar(1, 'var_num', def_num))
:$put =string(getbufvar(1, ''))
:$put =string(getbufvar(1, '', def_num))
:$put =string(getbufvar(9, ''))
:$put =string(getbufvar(9, '', def_num))
:unlet def_num
:$put =string(getbufvar(1, '&autoindent'))
:$put =string(getbufvar(1, '&autoindent', 1))
:"
:" test for getwinvar()
:let w:var_str = "Dance"
:let def_str = "Chance"
:$put =string(getwinvar(1, 'var_str'))
:$put =string(getwinvar(1, 'var_str', def_str))
:$put =string(getwinvar(1, ''))
:$put =string(getwinvar(1, '', def_str))
:unlet w:var_str
:$put =string(getwinvar(1, 'var_str', def_str))
:$put =string(getwinvar(1, ''))
:$put =string(getwinvar(1, '', def_str))
:$put =string(getwinvar(9, ''))
:$put =string(getwinvar(9, '', def_str))
:$put =string(getwinvar(1, '&nu'))
:$put =string(getwinvar(1, '&nu',  1))
:unlet def_str
:"
:" test for gettabvar()
:tabnew
:tabnew
:let t:var_list = [1, 2, 3]
:let def_list = [4, 5, 6, 7]
:tabrewind
:$put =string(gettabvar(3, 'var_list'))
:$put =string(gettabvar(3, 'var_list', def_list))
:$put =string(gettabvar(3, ''))
:$put =string(gettabvar(3, '', def_list))
:tablast
:unlet t:var_list
:tabrewind
:$put =string(gettabvar(3, 'var_list', def_list))
:$put =string(gettabvar(9, ''))
:$put =string(gettabvar(9, '', def_list))
:$put =string(gettabvar(3, '&nu'))
:$put =string(gettabvar(3, '&nu', def_list))
:unlet def_list
:tabonly
:"
:" test for gettabwinvar()
:tabnew
:tabnew
:tabprev
:split
:split
:wincmd w
:vert split
:wincmd w
:let w:var_dict = {'dict': 'tabwin'}
:let def_dict = {'dict2': 'newval'}
:wincmd b
:tabrewind
:$put =string(gettabwinvar(2, 3, 'var_dict'))
:$put =string(gettabwinvar(2, 3, 'var_dict', def_dict))
:$put =string(gettabwinvar(2, 3, ''))
:$put =string(gettabwinvar(2, 3, '', def_dict))
:tabnext
:3wincmd w
:unlet w:var_dict
:tabrewind
:$put =string(gettabwinvar(2, 3, 'var_dict', def_dict))
:$put =string(gettabwinvar(2, 3, ''))
:$put =string(gettabwinvar(2, 3, '', def_dict))
:$put =string(gettabwinvar(2, 9, ''))
:$put =string(gettabwinvar(2, 9, '', def_dict))
:$put =string(gettabwinvar(9, 3, ''))
:$put =string(gettabwinvar(9, 3, '', def_dict))
:unlet def_dict
:$put =string(gettabwinvar(2, 3, '&nux'))
:$put =string(gettabwinvar(2, 3, '&nux', 1))
:tabonly
:"
:/^start/,$wq! test.out
ENDTEST

start: