;;; Copyright (C) 2008 Magnus Henoch
;;;
;;; 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.
;;;
;;; 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.
;;;
;;; 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

(in-package :darcs-tests)

(def-suite get-common-and-uncommon-suite :in darcs-suite)
(in-suite get-common-and-uncommon-suite)

(defun gen-patchinfo ()
  (darcs::make-patchinfo :name (format nil "~A" (random 1000))))

(defmacro tri-equal (form one two three)
  `(multiple-value-bind (one two three) ,form
     (is (equal ,one one))
     (is (equal ,two two))
     (is (equal ,three three))))

(test gcau-nil
  (tri-equal (darcs::get-common-and-uncommon nil nil)
	     nil nil nil))

(test gcau-only-common
  (for-all ((patchinfos (gen-list :elements #'gen-patchinfo)))
    (tri-equal (darcs::get-common-and-uncommon (list patchinfos) (list patchinfos))
	       patchinfos nil nil)))

(test gcau-only-ours
  (for-all ((patchinfos (gen-list :elements #'gen-patchinfo)))
    (tri-equal (darcs::get-common-and-uncommon (list patchinfos) nil)
	       nil patchinfos nil)))

(test gcau-only-theirs
  (for-all ((patchinfos (gen-list :elements #'gen-patchinfo)))
    (tri-equal (darcs::get-common-and-uncommon nil (list patchinfos))
	       nil nil patchinfos)))

(test gcau-both
  (for-all ((common (gen-list :elements #'gen-patchinfo))
	    (only-ours (gen-list :elements #'gen-patchinfo))
	    (only-theirs (gen-list :elements #'gen-patchinfo)))
    (let ((ours (list (append common only-ours)))
	  (theirs (list (append common only-theirs))))
      (tri-equal (darcs::get-common-and-uncommon ours theirs)
		 common only-ours only-theirs))))