test/repart: fix mkfs checker

Follow-up for 27cacec939a46f61706d7b48a51b6f5880be4662.

diff --git a/test/units/TEST-58-REPART.sh b/test/units/TEST-58-REPART.sh
index 05fc017d231e04e3cd16fe511b91212cf3dd9752..bac90649ce0125f037723dc57be6d8cdabb6714e 100755 (executable)
--- a/test/units/TEST-58-REPART.sh
+++ b/test/units/TEST-58-REPART.sh
@@ -1325,9 +1325,12 @@ testcase_compression() {
 
     # TODO: add btrfs once btrfs-progs v6.11 is available in distributions.
     for format in squashfs erofs; do
-        if ! command -v "mkfs.$format" && ! command -v mksquashfs >/dev/null; then
-            continue
-        fi
+        case "$format" in
+            squashfs)
+                command -v mksquashfs >/dev/null || continue ;;
+            *)
+                command -v "mkfs.$format" || continue ;;
+        esac
 
         [[ "$format" == "squashfs" ]] && compression=zstd
         [[ "$format" == "erofs" ]] && compression=lz4hc