;;; num-base-converters-tests.el --- Test suite for num-base-converters. -*- lexical-binding: t -*-

;; Copyright (C) 2017 Free Software Foundation, Inc.

;; This file is part of GNU Emacs.

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;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; GNU Emacs 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.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.

;;; Code:
(require 'ert)
(require 'num-base-converters)


(ert-deftest nbc-test-converters ()
  ;; Input is case-insensitive.
  (dolist (x (list "a" "A"))
    (should (equal "10" (nbc-hex2dec x)))
    (should (equal "12" (nbc-hex2oct x)))
    (should (equal "1010" (nbc-hex2bin x))))
  ;;
  (should (equal "A" (nbc-dec2hex "10")))
  (should (equal "12" (nbc-dec2oct "10")))
  (should (equal "1010" (nbc-dec2bin "10")))
  ;;
  (should (equal "3F" (nbc-oct2hex "77")))
  (should (equal "63" (nbc-oct2dec "77")))
  (should (equal "111111" (nbc-oct2bin "77")))
  ;;
  (should (equal "A" (nbc-bin2hex "1010")))
  (should (equal "10" (nbc-bin2dec "1010")))
  (should (equal "12" (nbc-bin2oct "1010"))))

(ert-deftest nbc-test-nbc-number-base-converter ()
  ;; Bases `b' must be: 2 <= b <= 36:
  (should-error (nbc-number-base-converter "10" 37 10))
  (should-error (nbc-number-base-converter "10" 10 37))
  (should-error (nbc-number-base-converter "10" 10 1))
  (should-error (nbc-number-base-converter "10" 1 10))
  ;; Invalid input:
  (should-error (nbc-number-base-converter "1a" 8 10))
  (should-error (nbc-number-base-converter "az" 16 10))
  (should-error (nbc-number-base-converter "3" 2 10))
  (should-error (nbc-number-base-converter "z" 10 8))
  ;;
  (should (equal "8" (nbc-number-base-converter "10" 8 16)))
  (should (equal "10" (nbc-number-base-converter "8" 16 8)))
  (should (equal "12" (nbc-number-base-converter "10" 10 8)))
  (should (equal "10" (nbc-number-base-converter "12" 8 10)))
  (should (equal "1000" (nbc-number-base-converter "10" 8 2)))
  (should (equal "10" (nbc-number-base-converter "1000" 2 8)))
  ;;
  (should (equal "10" (nbc-number-base-converter "a" 16 10)))
  (should (equal "10" (nbc-number-base-converter "A" 16 10)))
  (should (equal "A" (nbc-number-base-converter "10" 10 16)))
  (should (equal "1010" (nbc-number-base-converter "a" 16 2)))
  (should (equal "1010" (nbc-number-base-converter "A" 16 2)))
  (should (equal "A" (nbc-number-base-converter "1010" 2 16)))
  ;;
  (should (equal "1010" (nbc-number-base-converter "10" 10 2)))
  (should (equal "10" (nbc-number-base-converter "1010" 2 10))))

(ert-deftest nbc-test-nbc-number-base-converter ()
  (let (nbc-define-aliases)
    (nbc--create-converters)
    (should (fboundp 'nbc-oct2dec))
    (should-not (fboundp 'oct2dec))
    (setq nbc-define-aliases t)
    ;; It should create the aliases, i.e. `oct2dec' etc.
    (nbc--create-converters)
    (should (fboundp 'oct2dec))))


(provide 'num-base-converters-tests)

;; num-base-converters-tests.el ends here