test: update integration tests.

tests/integration/utils/zramctl.bats

@@ -0,0 +1,18 @@
+#!/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 "zramctl: Check if zram is enabled; enable it if needed" {
+    lsmod | grep -i zram || sudo modprobe zram
+}
+
+@test "zramctl: Find and initialize the next free zram device to a 1 GB virtual drive using LZ4 compression" {
+    sudo zramctl --find --size 1GB --algorithm lz4
+}
+
+@test "zramctl: List currently initialized devices" {
+    sudo zramctl
+}