nixosTests.cloud-init: test changing hostname actually works

1 files changed, 9 insertions, 1 deletions

diff --git a/nixos/tests/cloud-init.nix b/nixos/tests/cloud-init.nix
index d23e9c64b373d..a127be6dd85f1 100644
--- a/nixos/tests/cloud-init.nix
+++ b/nixos/tests/cloud-init.nix
@@ -48,7 +48,7 @@ in makeTest {
     virtualisation.qemu.options = [ "-cdrom" "${metadataDrive}/metadata.iso" ];
     services.cloud-init.enable = true;
     services.openssh.enable = true;
-
+    networking.hostName = "";
   };
   testScript = ''
     machine.wait_for_unit("cloud-init.service")
@@ -70,5 +70,13 @@ in makeTest {
     machine.succeed(
         "ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o IdentityFile=~/.ssh/id_snakeoil nixos@localhost 'true'"
     )
+
+    # test changing hostname via cloud-init worked
+    assert (
+        machine.succeed(
+            "ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o IdentityFile=~/.ssh/id_snakeoil nixos@localhost 'hostname'"
+        ).strip()
+        == "test"
+    )
   '';
 }