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

After:
  call ale#test#RestoreDirectory()

Execute(We should find a directory when searching and it is closer):
  call ale#test#SetFilename('test-files/top/needle_dir/target/query/buffer.txt')

  AssertEqual
  \ ale#path#Simplify(expand('%:p:h:h:h:h:h:h') . '/test-files/top/needle_dir/target/needle/'),
  \ ale#path#FindNearestFileOrDirectory(bufnr('%'), 'needle')

Execute(We should find a file when searching and it is closer):
  call ale#test#SetFilename('test-files/top/needle_file/target/query/buffer.txt')

  AssertEqual
  \ ale#path#Simplify(expand('%:p:h:h:h:h:h:h') . '/test-files/top/needle_file/target/needle'),
  \ ale#path#FindNearestFileOrDirectory(bufnr('%'), 'needle')

Execute(We shouldn't find anything for files which don't match):
  AssertEqual '', ale#path#FindNearestFileOrDirectory(bufnr('%'), 'cantfindthis')