Before:
  Save g:ale_pyrex_cython_executable
  Save g:ale_pyrex_cython_options

  unlet! g:ale_pyrex_cython_executable
  unlet! b:ale_pyrex_cython_executable
  unlet! g:ale_pyrex_cython_options
  unlet! b:ale_pyrex_cython_options

  runtime ale_linters/pyrex/cython.vim

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

After:
  Restore
  unlet! b:ale_pyrex_cython_options
  unlet! b:ale_pyrex_cython_executable
  call ale#linter#Reset()
  call ale#test#RestoreDirectory()

Execute(The default cython command should be correct):
  AssertEqual
  \ ale#Escape('cython')
  \   . ' --working ' . ale#Escape(g:dir)
  \   . ' --include-dir ' . ale#Escape(g:dir)
  \   . ' --warning-extra'
  \   . ' --output-file ' . g:ale#util#nul_file . ' %t',
  \ ale_linters#pyrex#cython#GetCommand(bufnr(''))

Execute(The cython executable should be configurable):
  let b:ale_pyrex_cython_executable = 'cython_foobar'

  AssertEqual
  \ ale#Escape('cython_foobar')
  \   . ' --working ' . ale#Escape(g:dir)
  \   . ' --include-dir ' . ale#Escape(g:dir)
  \   . ' --warning-extra'
  \   . ' --output-file ' . g:ale#util#nul_file . ' %t',
  \ ale_linters#pyrex#cython#GetCommand(bufnr(''))

Execute(Additional cython options should be configurable):
  let b:ale_pyrex_cython_options = '--foobar'

  AssertEqual
  \ ale#Escape('cython')
  \   . ' --working ' . ale#Escape(g:dir)
  \   . ' --include-dir ' . ale#Escape(g:dir)
  \   . ' --foobar'
  \   . ' --output-file ' . g:ale#util#nul_file . ' %t',
  \ ale_linters#pyrex#cython#GetCommand(bufnr(''))