source: branches/f4grobner/5am-infix-print.lisp@ 4019

;;; -*-  Mode: Lisp -*- 
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;;;  Copyright (C) 1999, 2002, 2009, 2015 Marek Rychlik <rychlik@u.arizona.edu>          
;;;                                                                              
;;;  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              
;;;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               
;;;  GNU General Public License for more details.                                
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;;;  You should have received a copy of the GNU General Public License           
;;;  along with this program; if not, write to the Free Software                 
;;;  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
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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)

;; Unless NGROBNER system loaded by ASDF,
;; load the dependencies directly
#-ngrobner
(progn
  (require :infix "infix")
  (require :infix-printer "infix-printer"))

(defpackage #:5am-monom
  (:use :cl :it.bese.fiveam :infix-printer)
  (:documentation "Infix printing tests"))

(in-package :5am-monom)

(def-suite infix-printer-suite
    :description "Infix printer suite")

(in-suite infix-printer-suite)

(test operator-precedence 
  "Operator precedence"
  (is (equal (infix-print-to-string '(* (+ a b) c)) "(A+B)*C"))
  (is (equal (infix-print-to-string '(+ (* a b) c)) "A*B+C"))
  (is (equal (infix-print-to-string '(sin x)) "SIN(X)"))
  ;; TODO: Eliminate an extra level of parenthesis in expression below. This
  ;; requires changing condition to parenthesize in INFIX-PRINT. The deeper
  ;; complication is that the INFIX package defines the precedence of
  ;; operators, and it defines token operators. Thus, consistency
  ;; should be ensured so that the printed expression can be read back
  ;; observing the precedence defined in the INFIX package
  (is (equal (infix-print-to-string '(* 3 (sin x))) "3*(SIN(X))"))
  )

(run! 'infix-printer-suite)
(format t "All tests done!~%")