Before:
  Save g:ale_fish_fish_indent_executable
  Save g:ale_fish_fish_indent_options

  " Use an invalid global executable, so we don't match it.
  let g:ale_fish_fish_indent_executable = 'xxxinvalid'
  let g:ale_fish_fish_indent_options = ''

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

After:
  Restore

  call ale#test#RestoreDirectory()

Execute(The fish_indent callback should return the correct default values):
  call ale#test#SetFilename('../fish_files/testfile.fish')

  AssertEqual
  \ {
  \   'read_temporary_file': 1,
  \   'command': ale#Escape('xxxinvalid')
  \   . ' -w '
  \   . ' %t',
  \ },
  \ ale#fixers#fish_indent#Fix(bufnr(''))

Execute(The fish_indent callback should include custom fish_indent options):
  let g:ale_fish_fish_indent_options = "-d"
  call ale#test#SetFilename('../fish_files/testfile.fish')

  AssertEqual
  \ {
  \   'read_temporary_file': 1,
  \   'command': ale#Escape('xxxinvalid')
  \   . ' -w '
  \   . ' -d'
  \   . ' %t',
  \ },
  \ ale#fixers#fish_indent#Fix(bufnr(''))