source: branches/f4grobner/5am-poly-sugar.lisp

;;; -*-  Mode: Lisp -*- 
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;;;  Copyright (C) 1999, 2002, 2009, 2015 Marek Rychlik <rychlik@u.arizona.edu>          
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;;;  This program is free software; you can redistribute it and/or modify        
;;;  it under the terms of the GNU General Public License as published by        
;;;  the Free Software Foundation; either version 2 of the License, or           
;;;  (at your option) any later version.                                         
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;;;  This program is distributed in the hope that it will be useful,             
;;;  but WITHOUT ANY WARRANTY; without even the implied warranty of              
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;;;  GNU General Public License for more details.                                
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;;;  You should have received a copy of the GNU General Public License           
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;;
;; Run tests using 5am unit testing framework
;;
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;; We assume that QuickLisp package manager is installed.
;; See :
;;      https://www.quicklisp.org/beta/
;;

;; The following is unnecessary after running:
;; * (ql:add-to-init-file)
;; at lisp prompt:
;;(load "~/quicklisp/setup")

(ql:quickload :fiveam)

(defpackage #:5am-poly-sugar
  (:use :cl :it.bese.fiveam :monom :polynomial :ring :symbolic-polynomial :polynomial-sugar))

(in-package :5am-poly-sugar)

(def-suite poly-sugar-suite 
    :description "Polynomial with sugar package suite")

(in-suite poly-sugar-suite)

(test sugar-basic 
  "Add sugar to a polynomial"
  (let ((p (change-class (string->poly "x*y+x^3" '(x y)) 'poly-with-sugar)))
    (is (= (sugar-value p) 3))))

(test sugar-add
  "Checks sugar addition rule"
  (let* ((p (change-class (string->poly "x*y+x^3" '(x y)) 'poly-with-sugar))
         (q (add p p)))
    (is (= (sugar-value q) 3))))

(test sugar-multiply
  "Checks sugar multiplication rule"
  (let* ((p (change-class (string->poly "x*y+x^3" '(x y)) 'poly-with-sugar))
         (q (multiply p p)))
    (is (= (sugar-value q) 6))))

(test sugar-term-insert
  "Checks sugar multiplication rule"
  (let* ((p (change-class (string->poly "x*y+x^3" '(x y)) 'poly-with-sugar))
         (q (poly-insert-term p (make-instance 'term-with-sugar :exponents '(3 4)))))
    (is (= (sugar-value q) 7))))

(test sugar-expt
  "Checks sugar exponentiation rule"
  (let* ((p (change-class (string->poly "x*y+x^3" '(x y)) 'poly-with-sugar))
         (q (universal-expt p 3)))
    (is (= (sugar-value q) 12))))
         
(run! 'poly-sugar-suite)
(format t "All tests done!~%")