tests: add a few integration tests.

tests/integration/systemd/bootctl.bats

@@ -0,0 +1,22 @@
+#!/usr/bin/env bats
+# apparmor.d - Full set of apparmor profiles
+# Copyright (C) 2025 Alexandre Pujol <alexandre@pujol.io>
+# SPDX-License-Identifier: GPL-2.0-only
+
+load ../common
+
+@test "bootctl: Show information about the system firmware and the bootloaders" {
+    sudo bootctl status
+}
+
+@test "bootctl: Show all available bootloader entries" {
+    sudo bootctl list
+}
+
+@test "bootctl: Install 'systemd-boot' into the EFI system partition" {
+    sudo bootctl install
+}
+
+@test "bootctl: Remove all installed versions of 'systemd-boot' from the EFI system partition" {
+    sudo bootctl remove
+}

tests/integration/systemd/busctl.bats

@@ -0,0 +1,27 @@
+#!/usr/bin/env bats
+# apparmor.d - Full set of apparmor profiles
+# Copyright (C) 2025 Alexandre Pujol <alexandre@pujol.io>
+# SPDX-License-Identifier: GPL-2.0-only
+
+load ../common
+
+@test "busctl: Show all peers on the bus, by their service names" {
+    busctl list
+}
+
+@test "busctl: Show process information and credentials of a bus service, a process, or the owner of the bus (if no parameter is specified)" {
+    busctl status 1
+    busctl status org.freedesktop.DBus
+}
+
+@test "busctl: Show an object tree of one or more services (or all services if no service is specified)" {
+    busctl tree org.freedesktop.DBus
+}
+
+@test "busctl: Show interfaces, methods, properties and signals of the specified object on the specified service" {
+    busctl introspect org.freedesktop.login1 /org/freedesktop/login1
+}
+
+@test "busctl: Retrieve the current value of one or more object properties" {
+    busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager Docked
+}

tests/integration/systemd/homectl.bats

@@ -16,7 +16,7 @@ setup_file() {
 }
 
 @test "homectl: Create a user account and their associated home directory" {
-    sudo homectl create user2
+    printf "user2\nuser2" | sudo homectl create user2
 }
 
 @test "homectl: List user accounts and their associated home directories" {

tests/integration/systemd/journalctl.bats

@@ -0,0 +1,30 @@
+#!/usr/bin/env bats
+# apparmor.d - Full set of apparmor profiles
+# Copyright (C) 2025 Alexandre Pujol <alexandre@pujol.io>
+# SPDX-License-Identifier: GPL-2.0-only
+
+load ../common
+
+@test "journalctl: Show all messages with priority level 3 (errors) from this boot" {
+    sudo journalctl -b --priority=3
+}
+
+@test "journalctl: Show only the last N lines of the journal" {
+    sudo journalctl --lines 100
+}
+
+@test "journalctl: Show all messages by a specific [u]nit" {
+    sudo journalctl --unit apparmor.service
+}
+
+@test "journalctl: Show all messages by a specific process" {
+    sudo journalctl _PID=1
+}
+
+@test "journalctl: Show all messages by a specific executable" {
+    sudo journalctl /usr/bin/bootctl
+}
+
+@test "journalctl: Delete journal logs which are older than 10 seconds" {
+    sudo journalctl --vacuum-time=10s
+}

tests/integration/systemd/localectl.bats

@@ -0,0 +1,23 @@
+#!/usr/bin/env bats
+# apparmor.d - Full set of apparmor profiles
+# Copyright (C) 2025 Alexandre Pujol <alexandre@pujol.io>
+# SPDX-License-Identifier: GPL-2.0-only
+
+load ../common
+
+@test "localectl: Show the current settings of the system locale and keyboard mapping" {
+    localectl
+}
+
+@test "localectl: List available locales" {
+    localectl list-locales
+}
+
+@test "localectl: Set a system locale variable" {
+    sudo localectl set-locale LANG=en_US.UTF-8
+}
+
+@test "localectl: Set the system keyboard mapping for the console and X11" {
+    sudo localectl set-keymap uk
+}
+

tests/integration/systemd/machinectl.bats

@@ -0,0 +1,26 @@
+#!/usr/bin/env bats
+# apparmor.d - Full set of apparmor profiles
+# Copyright (C) 2025 Alexandre Pujol <alexandre@pujol.io>
+# SPDX-License-Identifier: GPL-2.0-only
+
+load ../common
+
+@test "importctl: Import an image as a machine" {
+    sudo importctl pull-tar --force --class=machine -N https://cloud-images.ubuntu.com/noble/current/noble-server-cloudimg-amd64-root.tar.xz noble
+}
+
+@test "machinectl: Display a list of available images" {
+    sudo machinectl list-images
+}
+
+@test "machinectl: Start a machine as a service using systemd-nspawn" {
+    sudo machinectl start noble
+}
+
+@test "machinectl: Display a list of running machines" {
+    sudo machinectl list
+}
+
+@test "machinectl: Stop a running machine" {
+    sudo machinectl stop noble
+}

tests/integration/systemd/networkctl.bats

@@ -0,0 +1,18 @@
+#!/usr/bin/env bats
+# apparmor.d - Full set of apparmor profiles
+# Copyright (C) 2025 Alexandre Pujol <alexandre@pujol.io>
+# SPDX-License-Identifier: GPL-2.0-only
+
+load ../common
+
+@test "networkctl: List existing links with their status" {
+    sudo networkctl list
+}
+
+@test "networkctl: Show an overall network status" {
+    sudo networkctl status
+}
+
+@test "networkctl: Reload configuration files (.netdev and .network)" {
+    sudo networkctl reload
+}