num-roman-test.rkt

;; -*- coding: utf-8; mode: scheme -*-
;; num-roman-test.rkt
#lang racket

(require rackunit
         rackunit/text-ui
         "num-roman.rkt")

(define-test-suite num-roman-suite

  (test-case "prueba-numerales"
     (let ((pruebas '(("I" 1 0)
                      ("II" 2 0)
                      ("III" 3 0)
                      ("IX" 9 0)
                      ("XX" 2 1)
                      ("CC" 2 2)
                      ("XXX" 3 1)
                      ("CCC" 3 2)
                      ("MMM" 3 3)))
           (exp-val "")
           (act-val 0)
           (digit 0)
           (pos 0))
       (for ((elem pruebas))
            (set! exp-val (car elem))
            (set! digit (list-ref elem 1))
            (set! pos (list-ref elem 2))
            (set! act-val (numeral digit pos))
            (check-equal? act-val exp-val) ) ) )

  (test-case "prueba-unidades"
     (let ((pruebas '(("I" 1)
                      ("II" 2)
                      ("III" 3)
                      ("IV" 4)
                      ("V" 5)
                      ("IX" 9)) )
           (exp-val "")
           (act-val "")
           (arabigo 0))
       (for ((elem pruebas))
            (set! exp-val (car elem))
            (set! arabigo (cadr elem))
            (set! act-val (num-roman arabigo))
            (check-equal? act-val exp-val) ) ) )

  (test-case "prueba-decenas"
     (let ((pruebas '(("X" 10)
                      ("XII" 12)
                      ("XIX" 19)
                      ("XX" 20)
                      ("XXIII" 23)
                      ("XXXVII" 37)
                      ("LXXXIV" 84)) )
           (exp-val "")
           (act-val "")
           (arabigo 0))
       (for ((elem pruebas))
            (set! exp-val (car elem))
            (set! arabigo (cadr elem))
            (set! act-val (num-roman arabigo))
            (check-equal? act-val exp-val) ) ) )

  (test-case "prueba-centenas"
     (let ((pruebas '(("C" 100)
                      ("CXXIII" 123)
                      ("CCXIX" 219)
                      ("CDXXIII" 423)
                      ("DCXXXVII" 637)
                      ("DCCCLXXXIV" 884)
                      ("CMXCIX" 999)) )
           (exp-val "")
           (act-val "")
           (arabigo 0))
       (for ((elem pruebas))
            (set! exp-val (car elem))
            (set! arabigo (cadr elem))
            (set! act-val (num-roman arabigo))
            (check-equal? act-val exp-val) ) ) )

  (test-case "prueba-millares"
     (let ((pruebas '(("MCMLXXIV" 1974)
                      ("MCMLXXXV" 1985)
                      ("MCMXCIX" 1999)
                      ("MMXII" 2012)) )
           (exp-val "")
           (act-val "")
           (arabigo 0))
       (for ((elem pruebas))
            (set! exp-val (car elem))
            (set! arabigo (cadr elem))
            (set! act-val (num-roman arabigo))
            (check-equal? act-val exp-val) ) ) )

  ;;(test-case "caso prueba 1"
  ;;  (fail "Prueba no implementada"))
  )

(run-tests num-roman-suite)