Execute ( SpaceVim api: vim#buffer open ):
  new
  let buffer = SpaceVim#api#import('vim#buffer')
  call buffer.open({'bufname':'foo', 'cmd' : 'setl buftype=nofile bufhidden=wipe'})
  AssertEqual bufname('%'), 'foo'
  AssertEqual &buftype, 'nofile'

Execute ( SpaceVim api: vim#buffer buf_set_lines):
  new
  let buffer = SpaceVim#api#import('vim#buffer')
  let nr = bufnr('%')
  new
  call buffer.buf_set_lines(nr, 0, 1, 0, ['line 1', 'line 2', 'line 3'])
  AssertEqual getbufline(nr, 1, '$'), ['line 1', 'line 2', 'line 3']