tests: Add tmt test for 'uki'/'efi' key

Signed-off-by: Pragyan Poudyal <pragyanpoudyal41999@gmail.com>

Author: Johan-Liebert1

tmt/tests/booted/readonly/053-test-efi-uki-key.nu

@@ -0,0 +1,53 @@
+use std assert
+use tap.nu
+
+tap begin "Test EFI/UKI key"
+
+let st = bootc status --json | from json
+
+if not (tap is_composefs) {
+    exit 0
+}
+
+let bootloader = $st.status.booted.composefs.bootloader
+
+# Only for UKIs
+if ($st.status.booted.composefs.bootType | str downcase) != "uki" {
+    exit 0
+}
+
+let systemd_version = systemctl --version | lines | first | awk '{print $2}' | into int
+
+echo $"($systemd_version)"
+
+echo "BLS entry"
+echo (cat /boot/loader/entries/*)
+
+# Both bootloaders support BLI so EFI should be mounted at /boot
+let efi_line = (
+    open /boot/loader/entries/*
+    | lines
+    | where $it =~ '^efi'
+)
+
+let uki_line = (
+    open /boot/loader/entries/*
+    | lines
+    | where $it =~ '^uki'
+)
+
+if $bootloader == "grub-cc" {
+    assert equal ($efi_line | length) 1
+    assert equal ($uki_line | length) 0
+} else {
+
+    if $systemd_version >= 258 {
+        assert equal ($efi_line | length) 0
+        assert equal ($uki_line | length) 1
+    } else {
+        assert equal ($efi_line | length) 1
+        assert equal ($uki_line | length) 0
+    }
+}
+
+tap ok