Execute ( SpaceVim plugin: a.vim ):
  call SpaceVim#plugins#a#set_config_name('.projections.json')
  let root = SpaceVim#plugins#a#get_root()
  AssertEqual SpaceVim#plugins#a#get_alt('docs/index.md', root), 'docs/cn/index.md'
  AssertEqual SpaceVim#plugins#a#get_alt('docs/cn/index.md', root), 'docs/index.md'
  " AssertEqual SpaceVim#plugins#a#get_alt('docs/api/job.md', root), 'docs/cn/api/job.md'
  " AssertEqual SpaceVim#plugins#a#get_alt('docs/cn/api/job.md', root), 'docs/api/job.md'
  AssertEqual SpaceVim#plugins#a#get_alt('wiki/en/Project-layout.md', root), 'wiki/cn/Project-layout.md'
  AssertEqual SpaceVim#plugins#a#get_alt('wiki/cn/Project-layout.md', root), 'wiki/en/Project-layout.md'
  AssertEqual SpaceVim#plugins#a#get_alt('docs/_posts/2018-09-28-use-vim-as-ide.md', root), 'docs/_posts/2018-09-27-use-vim-as-ide.md'
  unlet root