nixos/dolibarr: add h2o+postgres setup as an extra test machine

nixos/tests/dolibarr.nix

@@ -3,7 +3,8 @@
   name = "dolibarr";
   meta.maintainers = [ ];
 
-  nodes.machine =
+  nodes = {
+    nginx_mysql =
       { ... }:
       {
         services.dolibarr = {
@@ -13,12 +14,29 @@
             forceSSL = false;
             enableACME = false;
           };
+          database.type = "mysql";
         };
 
         networking.firewall.allowedTCPPorts = [ 80 ];
       };
+    h2o_postgresql =
+      { ... }:
+      {
+        services.dolibarr = {
+          enable = true;
+          domain = "localhost";
+          h2o = {
+            acme.enable = false;
+          };
+          database.type = "postgresql";
+        };
 
-  testScript = ''
+        networking.firewall.allowedTCPPorts = [ 80 ];
+      };
+  };
+
+  testScript = # python
+    ''
       from html.parser import HTMLParser
       start_all()
 
@@ -32,12 +50,20 @@
         def handle_endtag(self, tag): pass
         def handle_data(self, data): pass
 
+      # wait for app
+      for machine in (nginx_mysql, h2o_postgresql):
         machine.wait_for_unit("phpfpm-dolibarr.service")
-    machine.wait_for_unit("nginx.service")
-    machine.wait_for_open_port(80)
+
+      # wait for web servers
+      nginx_mysql.wait_for_unit("nginx.service")
+      nginx_mysql.wait_for_open_port(80)
+      h2o_postgresql.wait_for_unit("h2o.service")
+      h2o_postgresql.wait_for_open_port(80)
+
+      for machine in (nginx_mysql, h2o_postgresql):
         # Sanity checks on URLs.
-    # machine.succeed("curl -fL http://localhost/index.php")
-    # machine.succeed("curl -fL http://localhost/")
+        machine.succeed("curl -fL http://localhost/index.php")
+        machine.succeed("curl -fL http://localhost/")
         # Perform installation.
         machine.succeed('curl -fL -X POST http://localhost/install/check.php -F selectlang=auto')
         machine.succeed('curl -fL -X POST http://localhost/install/fileconf.php -F selectlang=auto')