Before:
  silent! execute 'cd /testplugin/test/command_callback'
  let g:dir = getcwd()

After:
  " Set the file to something else,
  " or we'll cause issues when running other tests
  silent file 'dummy.py'
  unlet! g:dir

Execute(The python GetExecutable callbacks should return the correct path):
  AssertEqual
  \ '',
  \ ale#python#GetExecutable(bufnr(''), 'isort')

  silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
  AssertEqual
  \ g:dir . '/python_paths/with_virtualenv/env/bin/isort',
  \ ale#python#GetExecutable(bufnr(''), 'isort')
  AssertEqual
  \ g:dir . '/python_paths/with_virtualenv/env/bin/autopep8',
  \ ale#python#GetExecutable(bufnr(''), 'autopep8')
  AssertEqual
  \ g:dir . '/python_paths/with_virtualenv/env/bin/yapf',
  \ ale#python#GetExecutable(bufnr(''), 'yapf')


Execute(The autopep8 callbacks should return the correct default values):
  AssertEqual
  \ 0,
  \ ale#fixers#autopep8#Fix(bufnr(''))

  silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
  AssertEqual
  \ {'command': "'" . g:dir . "/python_paths/with_virtualenv/env/bin/autopep8' -" },
  \ ale#fixers#autopep8#Fix(bufnr(''))


Execute(The isort callbacks should return the correct default values):
  AssertEqual
  \ 0,
  \ ale#fixers#isort#Fix(bufnr(''))

  silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
  AssertEqual
  \ {'command': "'" . g:dir . "/python_paths/with_virtualenv/env/bin/isort' -" },
  \ ale#fixers#isort#Fix(bufnr(''))


Execute(The yapf callbacks should return the correct default values):
  AssertEqual
  \ 0,
  \ ale#fixers#yapf#Fix(bufnr(''))

  silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
  AssertEqual
  \ {'command': "'" . g:dir . "/python_paths/with_virtualenv/env/bin/yapf' --no-local-style" },
  \ ale#fixers#yapf#Fix(bufnr(''))