Before:
  call ale#assert#SetUpLinterTest('python', 'pycodestyle')

After:
  call ale#assert#TearDownLinterTest()

Execute(The pycodestyle command callback should return default string):
  AssertLinter 'pycodestyle', ale#Escape('pycodestyle') . '  -'

Execute(The pycodestyle command callback should allow options):
  let g:ale_python_pycodestyle_options = '--exclude=test*.py'

  AssertLinter 'pycodestyle',
  \ ale#Escape('pycodestyle') . ' --exclude=test*.py -'

Execute(The pycodestyle executable should be configurable):
  let g:ale_python_pycodestyle_executable = '~/.local/bin/pycodestyle'

  AssertLinter '~/.local/bin/pycodestyle',
  \ ale#Escape('~/.local/bin/pycodestyle') . '  -'

Execute(Setting executable to 'pipenv' appends 'run pycodestyle'):
  let g:ale_python_pycodestyle_executable = 'path/to/pipenv'

  AssertLinter 'path/to/pipenv',
  \ ale#Escape('path/to/pipenv') . ' run pycodestyle  -'