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

After:
  Restore

  call ale#test#RestoreDirectory()

Execute(The gleam_format command should have default values):
  call ale#test#SetFilename('../test-files/elixir/testfile.gleam')

  AssertEqual
  \ {
  \   'read_temporary_file': 1,
  \   'command': ale#Escape('gleam') . ' format %t',
  \ },
  \ ale#fixers#gleam_format#Fix(bufnr(''))

Execute(The gleam_format executable should be configurable):
  let g:ale_gleam_format_executable = 'xxxinvalid'
  call ale#test#SetFilename('../test-files/elixir/testfile.gleam')

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