[fix] Add check for $TESTING

setup/so-whiptail

@@ -320,6 +320,8 @@ whiptail_storage_requirements() {
 	local current_val=$2
 	local needed_val=$3
 
+	[ -n "$TESTING" ] && return
+
 	read -r -d '' message <<- EOM
 		Free space on mount point '${mount}' is currently ${current_val}.