More tests

tools/capone/test/string.ss

@@ -21,13 +21,35 @@
 	)))
 
 (ut-add-test
-  "Check 'string<?' function"
+  "Check 'string<? and string>?' functions"
   (begin
 	(and
 	  (string<? "aaaa" "z")
 	  (string<? "foo" "fooo")
 	  (not (string<? "foo" "asdadad"))
 	  (not (string<? "fooooooooo" "ab"))
+
+	  (string>? "z" "aaaa")
+	  (string>? "fooo" "foo")
+	  (string>? "foo" "asdadad")
+	  (string>? "fooooooooo" "ab")
+	)))
+
+(ut-add-test
+  "Check 'string<=? and string>=?' functions"
+  (begin
+    (and
+	  (string<=? "aaaa" "z")
+	  (string<=? "aaaa" "aaaa")
+	  (string<=? "" "")
+	  (not (string<=? "foo" "asdadad"))
+	  (not (string<=? "fooooooooo" "ab"))
+
+	  (string>=? "z" "aaaa")
+	  (string>=? "aaaa" "aaaa")
+	  (string>=? "" "")
+	  (string>=? "foo" "asdadad")
+	  (string>=? "fooooooooo" "ab")
 	)))
 
 (ut-add-test
@@ -57,3 +79,47 @@
 	  (= 0  (string-length ""))
 	  (= 1  (string-length "a"))
 	)))
+
+;; As I could find from chicken and guile, string-fill! should modify
+;; any string, not only one given with (make-string) only, which creates immutable strings
+;;
+;; This behaviour should be somehow documented and here it is:
+;;  If we make a string like '(define s "foo")' it will be immutable by default and that
+;;  can't be changed. On other hand, if we do something like:
+;;   (define s (make-string 10))
+;;   (set! s (string-copy "foo"))
+;;  's' will have "foo" value, have length of 3 characters and _will_ be mutable, e.g.
+;;  '(string-set! s 0 #\m)' will not fail and result will be "moo".
+;;
+;; Should it be seen as bug?
+(ut-add-test
+  "Check 'string-fill! and make-string' functions [!]"
+  (begin
+    (define s (make-string 11))
+	(string-fill! s #\o)
+	(string=? s "ooooooooooo")
+	))
+
+(ut-add-test
+  "Check 'string-set!' function"
+  (begin
+    (define s (make-string 10))
+	(set! s (string-copy "abrakadabra abrakadabra"))
+	(string-set! s 0  #\A)
+	(string-set! s 1  #\B)
+	(string-set! s 2  #\A)
+	(string-set! s 11 #\|)
+	(string-set! s 22 #\A)
+	(string=? s "ABAakadabra|abrakadabrA")
+  )
+)
+
+(ut-add-test
+  "Check 'number->string' function"
+  (begin
+    (and
+	  (string=? "33"    (number->string 33))
+	  (string=? "1234"  (number->string 1234))
+	  (string=? "0"     (number->string 0))
+	  (string=? "-1234" (number->string -1234))
+	)))