;-*- Mode:     Lisp -*-
;;;; Author:   Paul Dietz
;;;; Created:  Fri Oct 18 07:29:27 2002
;;;; Contains: Tests of OR



(deftest or.1
  (or)
  nil)

(deftest or.2
  (or nil)
  nil)

(deftest or.3
  (or 'a)
  a)

(deftest or.4
  (or (values 'a 'b 'c))
  a b c)

(deftest or.5 (or (values)))

(deftest or.6
  (or (values t nil) 'a)
  t)

(deftest or.7
  (or nil (values 'a 'b 'c))
  a b c)

(deftest or.8
  (let ((x 0))
    (values (or t (incf x))
            x))
  t 0)

(deftest or.9
  (or (values nil 1 2) (values 1 nil 2))
  1 nil 2)

;;; Test that explicit calls to macroexpand in subforms
;;; are done in the correct environment

(deftest or.10
  (macrolet
   ((%m (z) z))
   (or (expand-in-current-env (%m 'x))
       (expand-in-current-env (%m nil))
       (expand-in-current-env (%m 'y))
       t))
  x)

(deftest or.11
  (macrolet
   ((%m (z) z))
   (or (expand-in-current-env (%m nil))
       (expand-in-current-env (%m 'a))
       nil))
  a)

;;; Error tests

(deftest or.error.1
  (signals-error (funcall (macro-function 'or)) program-error)
  t)

(deftest or.error.2
  (signals-error (funcall (macro-function 'or) '(or)) program-error)
  t)

(deftest or.error.3
  (signals-error (funcall (macro-function 'or) '(or) nil nil) program-error)
  t)