tests/stream.impure.lisp

   1 ;;;; tests related to Lisp streams
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; While most of SBCL is derived from the CMU CL system, the test
   7 ;;;; files (like this one) were written from scratch after the fork
   8 ;;;; from CMU CL.
   9 ;;;;
  10 ;;;; This software is in the public domain and is provided with
  11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  12 ;;;; more information.
  13
  14 (in-package :cl-user)
  15
  16 (load "assertoid.lisp")
  17
  18 ;;; type errors for inappropriate stream arguments, fixed in
  19 ;;; sbcl-0.7.8.19
  20 (locally
  21     (declare (optimize (safety 3)))
  22   (assert (raises-error? (make-two-way-stream (make-string-output-stream)
  23                                               (make-string-output-stream))
  24                          type-error))
  25   (assert (raises-error? (make-two-way-stream (make-string-input-stream "foo")
  26                                               (make-string-input-stream "bar"))
  27                          type-error))
  28   ;; the following two aren't actually guaranteed, because ANSI, as it
  29   ;; happens, doesn't say "should signal an error" for
  30   ;; MAKE-ECHO-STREAM. It's still good to have, but if future
  31   ;; maintenance work causes this test to fail because of these
  32   ;; MAKE-ECHO-STREAM clauses, consider simply removing these clauses
  33   ;; from the test. -- CSR, 2002-10-06
  34   (assert (raises-error? (make-echo-stream (make-string-output-stream)
  35                                            (make-string-output-stream))
  36                          type-error))
  37   (assert (raises-error? (make-echo-stream (make-string-input-stream "foo")
  38                                            (make-string-input-stream "bar"))
  39                          type-error))
  40   (assert (raises-error? (make-concatenated-stream
  41                           (make-string-output-stream)
  42                           (make-string-input-stream "foo"))
  43                          type-error)))
  44
  45 ;;; bug 225: STRING-STREAM was not a class
  46 (eval `(defgeneric bug225 (s)
  47          ,@(mapcar (lambda (class)
  48                      `(:method :around ((s ,class)) (cons ',class (call-next-method))))
  49                    '(stream string-stream sb-impl::string-input-stream
  50                      sb-impl::string-output-stream))
  51          (:method (class) nil)))
  52
  53 (assert (equal (bug225 (make-string-input-stream "hello"))
  54                '(sb-impl::string-input-stream string-stream stream)))
  55 (assert (equal (bug225 (make-string-output-stream))
  56                '(sb-impl::string-output-stream string-stream stream)))
  57
  58 \f
  59 ;;; success
  60 (quit :unix-status 104)