From 5cd28326dbe955c4793bb79ba8a927f7454974c4 Mon Sep 17 00:00:00 2001
From: Daniel Fullmer <danielrf12@gmail.com>
Date: Sun, 14 Jun 2020 14:14:43 -0400
Subject: nixos/systemd-boot: add test for updating

---
 nixos/tests/systemd-boot.nix | 57 ++++++++++++++++++++++++++++++++------------
 1 file changed, 42 insertions(+), 15 deletions(-)

(limited to 'nixos')

diff --git a/nixos/tests/systemd-boot.nix b/nixos/tests/systemd-boot.nix
index e911c3933616..eba4729d6de8 100644
--- a/nixos/tests/systemd-boot.nix
+++ b/nixos/tests/systemd-boot.nix
@@ -6,26 +6,53 @@
 with import ../lib/testing-python.nix { inherit system pkgs; };
 with pkgs.lib;
 
-makeTest {
-  name = "systemd-boot";
-  meta.maintainers = with pkgs.stdenv.lib.maintainers; [ danielfullmer ];
-
-  machine = { pkgs, lib, ... }: {
+let
+  common = {
     virtualisation.useBootLoader = true;
     virtualisation.useEFIBoot = true;
     boot.loader.systemd-boot.enable = true;
   };
+in
+{
+  basic = makeTest {
+    name = "systemd-boot";
+    meta.maintainers = with pkgs.stdenv.lib.maintainers; [ danielfullmer ];
+
+    machine = common;
+
+    testScript = ''
+      machine.start()
+      machine.wait_for_unit("multi-user.target")
 
-  testScript = ''
-    machine.start()
-    machine.wait_for_unit("multi-user.target")
+      machine.succeed("test -e /boot/loader/entries/nixos-generation-1.conf")
+
+      # Ensure we actually booted using systemd-boot
+      # Magic number is the vendor UUID used by systemd-boot.
+      machine.succeed(
+          "test -e /sys/firmware/efi/efivars/LoaderEntrySelected-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f"
+      )
+    '';
+  };
 
-    machine.succeed("test -e /boot/loader/entries/nixos-generation-1.conf")
+  update = makeTest {
+    name = "systemd-boot-update";
+    meta.maintainers = with pkgs.stdenv.lib.maintainers; [ danielfullmer ];
 
-    # Ensure we actually booted using systemd-boot.
-    # Magic number is the vendor UUID used by systemd-boot.
-    machine.succeed(
-        "test -e /sys/firmware/efi/efivars/LoaderEntrySelected-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f"
-    )
-  '';
+    machine = common;
+
+    testScript = ''
+      machine.succeed("mount -o remount,rw /boot")
+
+      # Replace version inside sd-boot with something older. See magic[] string in systemd src/boot/efi/boot.c
+      machine.succeed(
+          """
+        find /boot -iname '*.efi' -print0 | \
+        xargs -0 -I '{}' sed -i 's/#### LoaderInfo: systemd-boot .* ####/#### LoaderInfo: systemd-boot 001 ####/' '{}'
+      """
+      )
+
+      output = machine.succeed("/run/current-system/bin/switch-to-configuration boot")
+      assert "updating systemd-boot from 001 to " in output
+    '';
+  };
 }
-- 
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