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;-*- Mode: Lisp -*-
;;;; Author: Paul Dietz
;;;; Created: Fri Oct 18 22:51:25 2002
;;;; Contains: Tests for TYPECASE
(in-package :cl-test)
(deftest typecase.1
(typecase 1 (integer 'a) (t 'b))
a)
(deftest typecase.2
(typecase 1 (symbol 'a))
nil)
(deftest typecase.3
(typecase 1 (symbol 'a) (t 'b))
b)
(deftest typecase.4
(typecase 1 (t (values))))
(deftest typecase.5
(typecase 1 (integer (values)) (t 'a)))
(deftest typecase.6
(typecase 1 (bit 'a) (integer 'b))
a)
(deftest typecase.7
(typecase 1 (otherwise 'a))
a)
(deftest typecase.8
(typecase 1 (t (values 'a 'b 'c)))
a b c)
(deftest typecase.9
(typecase 1 (integer (values 'a 'b 'c)) (t nil))
a b c)
(deftest typecase.10
(let ((x 0))
(values
(typecase 1
(bit (incf x) 'a)
(integer (incf x 2) 'b)
(t (incf x 4) 'c))
x))
a 1)
(deftest typecase.11
(typecase 1 (otherwise 'a))
a)
(deftest typecase.12
(typecase 1 (integer) (t 'a))
nil)
(deftest typecase.13
(typecase 1 (symbol 'a) (t))
nil)
(deftest typecase.14
(typecase 1 (symbol 'a) (otherwise))
nil)
(deftest typecase.15
(typecase 'a
(number 'bad)
(#.(find-class 'symbol nil) 'good))
good)
(deftest typecase.16
(block done
(tagbody
(typecase 'a (symbol (go 10)
10
(return-from done 'bad)))
10
(return-from done 'good)))
good)
(deftest typecase.17
(block done
(tagbody
(typecase 'a
(integer 'bad)
(t (go 10)
10
(return-from done 'bad)))
10
(return-from done 'good)))
good)
(deftest typecase.18
(loop for x in '(a 1 1.4 "c")
collect (typecase x
(t :good)
(otherwise :bad)))
(:good :good :good :good))
;;; A randomized test
(deftest typecase.19
(let* ((u (coerce *universe* 'vector))
(len1 (length u))
(types (coerce *cl-all-type-symbols* 'vector))
(len2 (length types)))
(loop
for n = (random 10)
for my-types = (loop repeat n collect (elt types (random len2)))
for val = (elt u (random len1))
for i = (position val my-types :test #'typep)
for form = `(typecase ',val
,@(loop for i from 0 for type in my-types collect `(,type ,i))
(otherwise nil))
for j = (eval form)
repeat 1000
unless (eql i j)
collect (list n my-types val i form j)))
nil)
;;; Test that explicit calls to macroexpand in subforms
;;; are done in the correct environment
(deftest typecase.20
(macrolet
((%m (z) z))
(typecase (expand-in-current-env (%m 2))
((integer 0 1) :bad1)
((integer 2 10) :good)
(t :bad2)))
:good)
(deftest typecase.21
(macrolet
((%m (z) z))
(typecase 2
((integer 0 1) (expand-in-current-env (%m :bad1)))
((integer 2 10) (expand-in-current-env (%m :good)))
(t (expand-in-current-env (%m :bad2)))))
:good)
;;; Error cases
(deftest typecase.error.1
(signals-error (funcall (macro-function 'typecase)) program-error)
t)
(deftest typecase.error.2
(signals-error (funcall (macro-function 'typecase)
'(typecase t)) program-error)
t)
(deftest typecase.error.3
(signals-error (funcall (macro-function 'typecase)
'(typecase t)
nil nil) program-error)
t)
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