guile-for-guile-emacs/test-suite/tests/alist.test

;;;; alist.test --- tests guile's alists     -*- scheme -*-
;;;; Copyright (C) 1999, 2001, 2006 Free Software Foundation, Inc.
;;;; 
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;; 
;;;; This library is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;;;; Lesser General Public License for more details.
;;;; 
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

(use-modules (test-suite lib))

;;; (gbh) some of these are duplicated in r4rs. This is probably a bit
;;;       more thorough, though (maybe overkill? I need it, anyway).
;;;                        
;;;       
;;;       Also: it will fail on the ass*-ref & remove functions. 
;;;       Sloppy versions should be added with the current behaviour
;;;       (it's the only set of 'ref functions that won't cause an 
;;;       error on an incorrect arg); they aren't actually used anywhere
;;;       so changing's not a big deal.

;;; Misc

(define-macro (pass-if-not str form)
  `(pass-if ,str (not ,form)))

(define (safe-assq-ref alist elt)
  (let ((x (assq elt alist)))
    (if x (cdr x) x)))

(define (safe-assv-ref alist elt)
  (let ((x (assv elt alist)))
    (if x (cdr x) x)))

(define (safe-assoc-ref alist elt)
  (let ((x (assoc elt alist)))
    (if x (cdr x) x)))
  
;;; Creators, getters
(let ((a (acons 'a 'b (acons 'c 'd (acons 'e 'f '()))))
      (b (acons "this" "is" (acons "a" "test" '())))
      (deformed '(a b c d e f g)))
  (pass-if "acons"
	   (and (equal? a '((a . b) (c . d) (e . f)))
		(equal? b '(("this" . "is") ("a" . "test")))))
  (pass-if "sloppy-assq"
	   (let ((x (sloppy-assq 'c a)))
	     (and (pair? x)
		  (eq? (car x) 'c)
		  (eq? (cdr x) 'd))))
  (pass-if "sloppy-assq not"
	   (let ((x (sloppy-assq "this" b)))
	     (not x)))
  (pass-if "sloppy-assv"
	   (let ((x (sloppy-assv 'c a)))
	     (and (pair? x)
		  (eq? (car x) 'c)
		  (eq? (cdr x) 'd))))
  (pass-if "sloppy-assv not"
	   (let ((x (sloppy-assv "this" b)))
	     (not x)))
  (pass-if "sloppy-assoc"
	   (let ((x (sloppy-assoc "this" b)))
	     (and (pair? x)
		  (string=? (cdr x) "is"))))
  (pass-if "sloppy-assoc not"
	   (let ((x (sloppy-assoc "heehee" b)))
	     (not x)))
  (pass-if "assq"
	   (let ((x (assq 'c a)))
	     (and (pair? x)
		  (eq? (car x) 'c)
		  (eq? (cdr x) 'd))))
  (pass-if-exception "assq deformed"
    exception:wrong-type-arg
    (assq 'x deformed))
  (pass-if-not "assq not" (assq 'r a))
  (pass-if "assv"
	   (let ((x (assv 'a a)))
	     (and (pair? x)
		  (eq? (car x) 'a)
		  (eq? (cdr x) 'b))))
  (pass-if-exception "assv deformed"
    exception:wrong-type-arg
    (assv 'x deformed))
  (pass-if-not "assv not" (assq "this" b))

  (pass-if "assoc"
	   (let ((x (assoc "this" b)))
	     (and (pair? x)
		  (string=? (car x) "this")
		  (string=? (cdr x) "is"))))
  (pass-if-exception "assoc deformed"
    exception:wrong-type-arg
    (assoc 'x deformed))
  (pass-if-not "assoc not" (assoc "this isn't" b)))


;;; Refers
(let ((a '((foo bar) (baz quux)))
      (b '(("one" 2 3) ("four" 5 6) ("seven" 8 9)))
      (deformed '(thats a real sloppy assq you got there)))
  (pass-if "assq-ref"
	   (let ((x (assq-ref a 'foo)))
	     (and (list? x)
		  (eq? (car x) 'bar))))

  (pass-if-not "assq-ref not" (assq-ref b "one"))
  (pass-if "assv-ref"
	   (let ((x (assv-ref a 'baz)))
	     (and (list? x)
		  (eq? (car x) 'quux))))

  (pass-if-not "assv-ref not" (assv-ref b "one"))

  (pass-if "assoc-ref"
	   (let ((x (assoc-ref b "one")))
	     (and (list? x)
		  (eqv? (car x) 2)
		  (eqv? (cadr x) 3))))


  (pass-if-not "assoc-ref not" (assoc-ref a 'testing))

  (let* ((have-sloppy-assv-ref? (defined? 'sloppy-assv-ref))) 

    (pass-if-exception "assv-ref deformed"
      exception:wrong-type-arg
      (if (not have-sloppy-assv-ref?) (throw 'unsupported))
      (assv-ref deformed 'sloppy))

    (pass-if-exception "assoc-ref deformed"
      exception:wrong-type-arg
      (if (not have-sloppy-assv-ref?) (throw 'unsupported))
      (assoc-ref deformed 'sloppy))

    (pass-if-exception "assq-ref deformed"
      exception:wrong-type-arg
      (if (not have-sloppy-assv-ref?) (throw 'unsupported))
      (assq-ref deformed 'sloppy))))


;;; Setters
(let ((a '((another . silly) (alist . test-case)))
      (b '(("this" "one" "has") ("strings" "!")))
      (deformed '(canada is a cold nation)))
  (pass-if "assq-set!"
	   (begin
	     (set! a (assq-set! a 'another 'stupid))
	     (let ((x (safe-assq-ref a 'another)))
	       (and x
		    (symbol? x) (eq? x 'stupid)))))

  (pass-if "assq-set! add"
	   (begin
	     (set! a (assq-set! a 'fickle 'pickle))
	     (let ((x (safe-assq-ref a 'fickle)))
	       (and x (symbol? x)
		    (eq? x 'pickle)))))

  (pass-if "assv-set!"
	   (begin
	     (set! a (assv-set! a 'another 'boring))
	     (let ((x (safe-assv-ref a 'another)))
		   (and x
			(eq? x 'boring)))))
  (pass-if "assv-set! add"
	   (begin
	     (set! a (assv-set! a 'whistle '(while you work)))
	     (let ((x (safe-assv-ref a 'whistle)))
	       (and x (equal? x '(while you work))))))

  (pass-if "assoc-set!"
	   (begin
	     (set! b (assoc-set! b "this" "has"))
	     (let ((x (safe-assoc-ref b "this")))
	       (and x (string? x)
		    (string=? x "has")))))
  (pass-if "assoc-set! add"
	   (begin
	     (set! b (assoc-set! b "flugle" "horn"))
	     (let ((x (safe-assoc-ref b "flugle")))
	       (and x (string? x)
		    (string=? x "horn")))))

  (let* ((have-sloppy-assv-ref? (defined? 'sloppy-assv-ref))) 

    (pass-if-exception "assq-set! deformed"
      exception:wrong-type-arg
      (if (not have-sloppy-assv-ref?) (throw 'unsupported))
      (assq-set! deformed 'cold '(very cold)))   

    (pass-if-exception "assv-set! deformed"
      exception:wrong-type-arg
      (if (not have-sloppy-assv-ref?) (throw 'unsupported))
      (assv-set! deformed 'canada 'Canada))

    (pass-if-exception "assoc-set! deformed"
      exception:wrong-type-arg
      (if (not have-sloppy-assv-ref?) (throw 'unsupported))
      (assoc-set! deformed 'canada '(Iceland hence the name)))))

;;; Removers

(let ((a '((a b) (c d) (e boring)))
      (b '(("what" .  "else") ("could" . "I") ("say" . "here")))
      (deformed 1))
  (pass-if "assq-remove!"
	   (begin 
	     (set! a (assq-remove! a 'a))
	     (equal? a '((c d) (e boring)))))
  (pass-if "assv-remove!"
	   (begin
	     (set! a (assv-remove! a 'c))
	     (equal? a '((e boring)))))
  (pass-if "assoc-remove!"
	   (begin
	     (set! b (assoc-remove! b "what"))
	     (equal? b '(("could" . "I") ("say" . "here")))))

  (let* ((have-sloppy-assq-remove? (defined? 'sloppy-assq-remove))) 

    (pass-if-exception "assq-remove! deformed"
      exception:wrong-type-arg
      (if (not have-sloppy-assq-remove?) (throw 'unsupported))
      (assq-remove! deformed 'puddle))

    (pass-if-exception "assv-remove! deformed"
      exception:wrong-type-arg
      (if (not have-sloppy-assq-remove?) (throw 'unsupported))
      (assv-remove! deformed 'splashing))

    (pass-if-exception "assoc-remove! deformed"
      exception:wrong-type-arg
      (if (not have-sloppy-assq-remove?) (throw 'unsupported))
      (assoc-remove! deformed 'fun))))