test: update integration tests.

tests/integration/apt/apt.bats

@@ -0,0 +1,42 @@
+#!/usr/bin/env bats
+# apparmor.d - Full set of apparmor profiles
+# Copyright (C) 2024 Alexandre Pujol <alexandre@pujol.io>
+# SPDX-License-Identifier: GPL-2.0-only
+
+load ../common
+
+@test "apt: Update the list of available packages and versions" {
+    sudo apt update
+}
+
+@test "apt: Search for a given package" {
+    apt search apparmor
+}
+
+@test "apt: Show information for a package" {
+    apt show apparmor
+}
+
+@test "apt: Install a package, or update it to the latest available version" {
+    sudo apt install -y pass
+}
+
+@test "apt: Remove a package (using 'purge' instead also removes its configuration files)" {
+    sudo apt remove -y pass
+}
+
+@test "apt: Upgrade all installed packages to their newest available versions" {
+    sudo apt upgrade -y
+}
+
+@test "apt: List all packages" {
+    apt list
+}
+
+@test "apt: List installed packages" {
+    apt list --installed
+}
+
+@test "apt-moo: Print a cow easter egg" {
+    apt moo
+}