nixpkgs/nixos/tests/php/pcre.nix

let
  testString = "can-use-subgroups";
in
{
  pkgs,
  lib,
  php,
  ...
}:
{
  name = "php-${php.version}-httpd-pcre-jit-test";
  meta.maintainers = lib.teams.php.members;

  nodes.machine =
    { pkgs, ... }:
    {
      time.timeZone = "UTC";
      services.httpd = {
        enable = true;
        adminAddr = "please@dont.contact";
        phpPackage = php;
        enablePHP = true;
        phpOptions = "pcre.jit = true";
        extraConfig =
          let
            testRoot = pkgs.writeText "index.php" ''
              <?php
              preg_match('/(${testString})/', '${testString}', $result);
              var_dump($result);
            '';
          in
          ''
            Alias / ${testRoot}/

            <Directory ${testRoot}>
              Require all granted
            </Directory>
          '';
      };
    };
  testScript =
    let
      # PCRE JIT SEAlloc feature does not play well with fork()
      # The feature needs to either be disabled or PHP configured correctly
      # More information in https://bugs.php.net/bug.php?id=78927 and https://bugs.php.net/bug.php?id=78630
      pcreJitSeallocForkIssue = pkgs.writeText "pcre-jit-sealloc-issue.php" ''
        <?php
        preg_match('/nixos/', 'nixos');
        $pid = pcntl_fork();
        pcntl_wait($pid);
      '';
    in
    ''
      machine.wait_for_unit("httpd.service")
      # Ensure php evaluation by matching on the var_dump syntax
      response = machine.succeed("curl -fvvv -s http://127.0.0.1:80/index.php")
      expected = 'string(${toString (builtins.stringLength testString)}) "${testString}"'
      assert expected in response, "Does not appear to be able to use subgroups."
      machine.succeed("${php}/bin/php -f ${pcreJitSeallocForkIssue}")
    '';
}