Before:
  runtime ale_linters/slim/slimlint.vim

  let g:default_command = 'slim-lint %t'

  call ale#test#SetDirectory('/testplugin/test/command_callback')

After:
  Restore

  unlet! g:default_command
  unlet! b:conf

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

Execute(The default command should be correct):
  AssertEqual g:default_command, ale_linters#slim#slimlint#GetCommand(bufnr(''))

Execute(The command should have the .rubocop.yml prepended as an env var if one exists):
  call ale#test#SetFilename('../slimlint-test-files/subdir/file.slim')

  let b:conf = ale#path#Simplify(g:dir . '/../slimlint-test-files/.rubocop.yml')

  if has('win32')
    " Windows uses 'set var=... && command'
    AssertEqual
    \ 'set SLIM_LINT_RUBOCOP_CONF='
    \   . ale#Escape(b:conf)
    \   .  ' && ' . g:default_command,
    \ ale_linters#slim#slimlint#GetCommand(bufnr(''))
  else
    " Unix uses 'var=... command'
    AssertEqual
    \ 'SLIM_LINT_RUBOCOP_CONF='
    \   . ale#Escape(b:conf)
    \   .  ' ' . g:default_command,
    \ ale_linters#slim#slimlint#GetCommand(bufnr(''))
  endif