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;-*- Mode: Lisp -*-
;;;; Author: Paul Dietz
;;;; Created: Sat Oct 26 13:45:45 2002
;;;; Contains: Tests of the FOR-AS-IN-LIST loop iteration control form,
;;;; and of destructuring in loop forms
(in-package :cl-test)
(deftest loop.2.1
(loop for x in '(1 2 3) sum x)
6)
(deftest loop.2.2
(loop for x in '(1 2 3 4)
do (when (evenp x) (return x)))
2)
(deftest loop.2.3
(signals-error (loop for x in '(a . b) collect x)
type-error)
t)
(deftest loop.2.4
(let ((x nil))
(loop for e in '(a b c d) do (push e x))
x)
(d c b a))
(deftest loop.2.5
(loop for e in '(a b c d e f) by #'cddr
collect e)
(a c e))
(deftest loop.2.6
(loop for e in '(a b c d e f g) by #'cddr
collect e)
(a c e g))
(deftest loop.2.7
(loop for e in '(a b c d e f)
by #'(lambda (l) (and (cdr l) (cons (car l) (cddr l))))
collect e)
(a a a a a a))
(deftest loop.2.8
(loop for (x . y) in '((a . b) (c . d) (e . f))
collect (list x y))
((a b) (c d) (e f)))
(deftest loop.2.9
(loop for (x nil y) in '((a b c) (d e f) (g h i))
collect (list x y))
((a c) (d f) (g i)))
(deftest loop.2.10
(loop for (x y) of-type fixnum in '((1 2) (3 4) (5 6))
collect (+ x y))
(3 7 11))
(deftest loop.2.11
(loop for (x y) of-type fixnum in '((1 2) (3 4) (5 6))
collect (+ x y))
(3 7 11))
(deftest loop.2.12
(loop for (x y) of-type (fixnum fixnum) in '((1 2) (3 4) (5 6))
collect (+ x y))
(3 7 11))
(deftest loop.2.13
(loop for (x . y) of-type (fixnum . fixnum) in '((1 . 2) (3 . 4) (5 . 6))
collect (+ x y))
(3 7 11))
(deftest loop.2.14
(signals-error
(loop for x in '(a b c)
for x in '(d e f) collect x)
program-error)
t)
(deftest loop.2.15
(signals-error
(loop for (x . x) in '((a b) (c d)) collect x)
program-error)
t)
(deftest loop.2.16
(loop for nil in nil do (return t))
nil)
(deftest loop.2.17
(let ((x '(a b c)))
(values
x
(loop for x in '(d e f) collect (list x))
x))
(a b c)
((d) (e) (f))
(a b c))
(deftest loop.2.18
(loop for x of-type (integer 0 10) in '(2 4 6 7) sum x)
19)
;;; Tests of the 'AS' form
(deftest loop.2.19
(loop as x in '(1 2 3) sum x)
6)
(deftest loop.2.20
(loop as x in '(a b c)
as y in '(1 2 3)
collect (list x y))
((a 1) (b 2) (c 3)))
(deftest loop.2.21
(loop as x in '(a b c)
for y in '(1 2 3)
collect (list x y))
((a 1) (b 2) (c 3)))
(deftest loop.2.22
(loop for x in '(a b c)
as y in '(1 2 3)
collect (list x y))
((a 1) (b 2) (c 3)))
(deftest loop.2.23
(let (a b (i 0))
(values
(loop for e in (progn (setf a (incf i))
'(a b c d e f g))
by (progn (setf b (incf i)) #'cddr)
collect e)
a b i))
(a c e g)
1 2 2)
;;; Test that explicit calls to macroexpand in subforms
;;; are done in the correct environment
(deftest loop.2.24
(macrolet
((%m (z) z))
(loop for x in (expand-in-current-env (%m '(1 2 3))) sum x))
6)
(deftest loop.2.25
(macrolet
((%m (z) z))
(loop for (x . y) in (expand-in-current-env (%m '((a . b) (c . d) (e . f))))
collect (list x y)))
((a b) (c d) (e f)))
(deftest loop.2.26
(macrolet
((%m (z) z))
(loop as x in (expand-in-current-env (%m '(1 2 3))) sum x))
6)
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