+
+(deftest apsl.1 (append-sublists '((a b) (c d))) (a b c d))
+(deftest apsl.2 (append-sublists nil) nil)
+(deftest apsl.3 (append-sublists '((a b))) (a b))
+(deftest apsl.4 (append-sublists '((a))) (a))
+(deftest apsl.5 (append-sublists '((a) (b) (c d (e f g)))) (a b c d (e f g)))
+
+(deftest pss.0 (with-output-to-string (s) (print-separated-strings s "|" nil))
+ "")
+
+(deftest pss.1
+ (with-output-to-string (s) (print-separated-strings s "|" '("ab")) )
+ "ab")
+
+(deftest pss.2
+ (with-output-to-string (s) (print-separated-strings s "|" '("ab" "cd")))
+ "ab|cd")
+
+(deftest pss.3
+ (with-output-to-string (s) (print-separated-strings s "|" '("ab" "cd") nil))
+ "ab|cd")
+
+(deftest pss.4
+ (with-output-to-string (s)
+ (print-separated-strings s "|" '("ab" "cd") nil nil))
+ "ab|cd")
+
+(deftest pss.5
+ (with-output-to-string (s)
+ (print-separated-strings s "|" '("ab" "cd") nil '("ef") nil))
+ "ab|cd|ef")
+
+(deftest css.0 (concat-separated-strings "|" nil) "")
+(deftest css.1 (concat-separated-strings "|" nil nil) "")
+(deftest css.2 (concat-separated-strings "|" '("ab")) "ab")
+(deftest css.3 (concat-separated-strings "|" '("ab" "cd")) "ab|cd")
+(deftest css.4 (concat-separated-strings "|" '("ab" "cd") nil) "ab|cd")
+(deftest css.5 (concat-separated-strings "|" '("ab" "cd") nil '("ef")) "ab|cd|ef")
+