Before:
  silent! cd /testplugin/test/util

Execute(CdString should output the correct command string):
  AssertEqual 'cd /foo\ bar/baz && ', ale#path#CdString('/foo bar/baz')

Execute(BufferCdString should output the correct command string):
  Assert match(ale#path#BufferCdString(bufnr('')), '^cd .*test/util && $') >= 0,
  \ 'String didn''t match regex: ' . ale#path#BufferCdString(bufnr(''))