Before:
  call ale#test#SetDirectory('/testplugin/test')

  runtime ale_linters/puppet/languageserver.vim

After:
  call ale#test#RestoreDirectory()
  call ale#linter#Reset()

Execute(old-style module should find its root correctly):
  call ale#test#SetFilename('test-files/puppet/old-style-module/manifests/init.pp')

  AssertEqual
  \ ale#path#Simplify(g:dir . '/test-files/puppet/old-style-module'),
  \ ale_linters#puppet#languageserver#GetProjectRoot(bufnr(''))

Execute(new-style module should find its root correctly):
  call ale#test#SetFilename('test-files/puppet/new-style-module/lib/puppet/types/exampletype.rb')

  AssertEqual
  \ ale#path#Simplify(g:dir . '/test-files/puppet/new-style-module'),
  \ ale_linters#puppet#languageserver#GetProjectRoot(bufnr(''))