3 files changed, 52 insertions, 1 deletions
diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index 2c34a3996d0b..f1141667ce0f 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -561,6 +561,7 @@ in {
   postfixadmin = handleTest ./postfixadmin.nix {};
   postgis = handleTest ./postgis.nix {};
   postgresql = handleTest ./postgresql.nix {};
+  postgresql-jit = handleTest ./postgresql-jit.nix {};
   postgresql-wal-receiver = handleTest ./postgresql-wal-receiver.nix {};
   powerdns = handleTest ./powerdns.nix {};
   powerdns-admin = handleTest ./powerdns-admin.nix {};
diff --git a/nixos/tests/postgresql-jit.nix b/nixos/tests/postgresql-jit.nix
new file mode 100644
index 000000000000..21682aad96da
--- /dev/null
+++ b/nixos/tests/postgresql-jit.nix
@@ -0,0 +1,50 @@
+{ system ? builtins.currentSystem
+, config ? {}
+, pkgs ? import ../.. { inherit system config; }
+}:
+
+with import ../lib/testing-python.nix { inherit system pkgs; };
+
+let
+  inherit (pkgs) lib;
+  packages = lib.filter
+    (lib.hasSuffix "_jit")
+    (builtins.attrNames (import ../../pkgs/servers/sql/postgresql pkgs));
+
+  mkJitTest = packageName: makeTest {
+    name = "${packageName}";
+    meta.maintainers = with lib.maintainers; [ ma27 ];
+    nodes.machine = { pkgs, lib, ... }: {
+      services.postgresql = {
+        enable = true;
+        package = pkgs.${packageName};
+        settings.jit = "on";
+        initialScript = pkgs.writeText "init.sql" ''
+          create table demo (id int);
+          insert into demo (id) select generate_series(1, 5);
+        '';
+      };
+    };
+    testScript = ''
+      machine.start()
+      machine.wait_for_unit("postgresql.service")
+
+      with subtest("JIT is enabled"):
+          machine.succeed("sudo -u postgres psql <<<'show jit;' | grep 'on'")
+
+      with subtest("Test JIT works fine"):
+          output = machine.succeed(
+              "cat ${pkgs.writeText "test.sql" ''
+                set jit_above_cost = 1;
+                EXPLAIN ANALYZE SELECT CONCAT('jit result = ', SUM(id)) FROM demo;
+                SELECT CONCAT('jit result = ', SUM(id)) from demo;
+              ''} | sudo -u postgres psql"
+          )
+          assert "JIT:" in output
+          assert "jit result = 15" in output
+
+      machine.shutdown()
+    '';
+  };
+in
+lib.genAttrs packages mkJitTest
diff --git a/nixos/tests/postgresql-wal-receiver.nix b/nixos/tests/postgresql-wal-receiver.nix
index ae2708546f5d..b0bd7711dbcd 100644
--- a/nixos/tests/postgresql-wal-receiver.nix
+++ b/nixos/tests/postgresql-wal-receiver.nix
@@ -116,4 +116,4 @@ let
     };
 
 # Maps the generic function over all attributes of PostgreSQL packages
-in builtins.listToAttrs (map makePostgresqlWalReceiverTest (builtins.attrNames (import ../../pkgs/servers/sql/postgresql { })))
+in builtins.listToAttrs (map makePostgresqlWalReceiverTest (builtins.attrNames (import ../../pkgs/servers/sql/postgresql pkgs)))