Add test for uid/gid with file copy

Author: r-vdp

examples/example.nix

@@ -54,6 +54,15 @@
         out-of-store = {
           source = "/run/systemd/system/";
         };
+
+        test_perms = {
+          text = ''
+            This is just a test!
+          '';
+          mode = "0755";
+          uid = 5;
+          gid = 6;
+        };
       };
     };
 

test/nix/modules/default.nix

@@ -150,6 +150,7 @@ forEachUbuntuImage "example" {
   extraPathsToRegister = [ newConfig ];
   testScriptFunction =
     { toplevel, ... }:
+    #python
     ''
       # Start all machines in parallel
       start_all()
@@ -174,6 +175,11 @@ forEachUbuntuImage "example" {
       vm.succeed("grep -F 'launch_the_rockets = true' /etc/foo.conf")
       vm.fail("grep -F 'launch_the_rockets = false' /etc/foo.conf")
 
+      uid = vm.succeed("stat -c %u /etc/test_perms").strip()
+      gid = vm.succeed("stat -c %g /etc/test_perms").strip()
+      assert uid == "5", f"uid was {uid}, expected 5"
+      assert gid == "6", f"uid was {gid}, expected 6"
+
       vm.succeed("test -d /var/tmp/system-manager")
       vm.succeed("test -d /var/tmp/sample")