nixos/php: Add tests for phpfpm

This test checks that we evaluate PHP properly and that certain
extensions are actually loaded.

nixos/tests/all-tests.nix

@@ -240,6 +240,7 @@ in
   peerflix = handleTest ./peerflix.nix {};
   pgjwt = handleTest ./pgjwt.nix {};
   pgmanage = handleTest ./pgmanage.nix {};
+  php = handleTest ./php {};
   php-pcre = handleTest ./php-pcre.nix {};
   plasma5 = handleTest ./plasma5.nix {};
   plotinus = handleTest ./plotinus.nix {};

nixos/tests/php/default.nix

@@ -0,0 +1,6 @@
+{ system ? builtins.currentSystem,
+  config ? {},
+  pkgs ? import ../../.. { inherit system config; }
+}: {
+  fpm = import ./fpm.nix { inherit system pkgs; };
+}

nixos/tests/php/fpm.nix

@@ -0,0 +1,55 @@
+import ../make-test-python.nix ({pkgs, ...}: {
+  name = "php-fpm-nginx-test";
+  meta.maintainers = with pkgs.stdenv.lib.maintainers; [ etu ];
+
+  machine = { config, lib, pkgs, ... }: {
+    services.nginx = {
+      enable = true;
+
+      virtualHosts."phpfpm" = let
+        testdir = pkgs.writeTextDir "web/index.php" "<?php phpinfo();";
+      in {
+        root = "${testdir}/web";
+        locations."~ \.php$".extraConfig = ''
+          fastcgi_pass unix:${config.services.phpfpm.pools.foobar.socket};
+          fastcgi_index index.php;
+          include ${pkgs.nginx}/conf/fastcgi_params;
+          include ${pkgs.nginx}/conf/fastcgi.conf;
+        '';
+        locations."/" = {
+          tryFiles = "$uri $uri/ index.php";
+          index = "index.php index.html index.htm";
+        };
+      };
+    };
+
+    services.phpfpm.pools."foobar" = {
+      user = "nginx";
+      settings = {
+        "listen.group" = "nginx";
+        "listen.mode" = "0600";
+        "listen.owner" = "nginx";
+        "pm" = "dynamic";
+        "pm.max_children" = 5;
+        "pm.max_requests" = 500;
+        "pm.max_spare_servers" = 3;
+        "pm.min_spare_servers" = 1;
+        "pm.start_servers" = 2;
+      };
+    };
+  };
+  testScript = { ... }: ''
+    machine.wait_for_unit("nginx.service")
+    machine.wait_for_unit("phpfpm-foobar.service")
+
+    # Check so we get an evaluated PHP back
+    assert "PHP Version ${pkgs.php.version}" in machine.succeed("curl -vvv -s http://127.0.0.1:80/")
+
+    # Check so we have database and some other extensions loaded
+    assert "json" in machine.succeed("curl -vvv -s http://127.0.0.1:80/")
+    assert "opcache" in machine.succeed("curl -vvv -s http://127.0.0.1:80/")
+    assert "pdo_mysql" in machine.succeed("curl -vvv -s http://127.0.0.1:80/")
+    assert "pdo_pgsql" in machine.succeed("curl -vvv -s http://127.0.0.1:80/")
+    assert "pdo_sqlite" in machine.succeed("curl -vvv -s http://127.0.0.1:80/")
+  '';
+})