patch 9.1.0898: runtime(compiler): pytest compiler not included

Problem:  runtime(compiler): pytest compiler not included
Solution: include pytest compiler, update the compiler completion test
          (Konfekt)

closes: #16130

Signed-off-by: Konfekt <Konfekt@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/ftplugin/python.vim

@@ -3,8 +3,9 @@
 " Maintainer:	Tom Picton <tom@tompicton.com>
 " Previous Maintainer: James Sully <sullyj3@gmail.com>
 " Previous Maintainer: Johannes Zellner <johannes@zellner.org>
-" Last Change:	2024/05/13
-" https://github.com/tpict/vim-ftplugin-python
+" Repository: https://github.com/tpict/vim-ftplugin-python
+" Last Change: 2024/05/13
+"              2024 Nov 30 use pytest compiler (#16130)
 
 if exists("b:did_ftplugin") | finish | endif
 let b:did_ftplugin = 1
@@ -134,6 +135,11 @@ elseif executable('python')
   setlocal keywordprg=python\ -m\ pydoc
 endif
 
+if expand('%:t') =~# '\v^test_.*\.py$|_test\.py$' && executable('pytest')
+  compiler pytest
+  let &l:makeprg .= ' %:S'
+endif
+
 " Script for filetype switching to undo the local stuff we may have changed
 let b:undo_ftplugin = 'setlocal cinkeys<'
       \ . '|setlocal comments<'
@@ -148,6 +154,7 @@ let b:undo_ftplugin = 'setlocal cinkeys<'
       \ . '|setlocal softtabstop<'
       \ . '|setlocal suffixesadd<'
       \ . '|setlocal tabstop<'
+      \ . '|setlocal makeprg<'
       \ . '|silent! nunmap <buffer> [M'
       \ . '|silent! nunmap <buffer> [['
       \ . '|silent! nunmap <buffer> []'