Before:
  Save g:ale_astgrep_executable
  Save g:ale_astgrep_scan_options

After:
  Restore

Execute(The ast-grep callback should return the correct default values):
  AssertEqual
  \ {
  \   'command': ale#Escape('ast-grep') . ' scan --update-all %t',
  \   'read_temporary_file': 1,
  \ },
  \ ale#fixers#astgrep#Fix(bufnr(''))

Execute(The astgrep executable and options should be configurable):
  let g:ale_astgrep_executable = '/path/to/ast-grep'
  let g:ale_astgrep_scan_options = '--interactive'

  AssertEqual
  \ {
  \   'command': ale#Escape('/path/to/ast-grep')
  \     . ' scan'
  \     . ' --interactive %t',
  \   'read_temporary_file': 1,
  \ },
  \ ale#fixers#astgrep#Fix(bufnr(''))