tests/bivalent-stream.impure.lisp

   1 ;;;; This file is for testing bivalent stream functionality, using
   2 ;;;; test machinery which might have side effects (e.g.  executing
   3 ;;;; DEFUN, writing files).  Note that the tests here might reach into
   4 ;;;; unexported functionality, and should not be used as a guide for
   5 ;;;; users.
   6
   7 ;;;; This software is part of the SBCL system. See the README file for
   8 ;;;; more information.
   9 ;;;;
  10 ;;;; While most of SBCL is derived from the CMU CL system, the test
  11 ;;;; files (like this one) were written from scratch after the fork
  12 ;;;; from CMU CL.
  13 ;;;;
  14 ;;;; This software is in the public domain and is provided with
  15 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  16 ;;;; more information.
  17
  18 ;;; Test character decode restarts.
  19 (with-open-file (s "bivalent-stream-test.txt" :direction :output
  20                  :if-exists :supersede
  21                  :element-type :default :external-format :utf-8)
  22   (write-byte 65 s)
  23   (write-char #\B s)
  24   (write-byte #xe0 s)
  25   (write-char #\C s))
  26
  27 (with-open-file (s "bivalent-stream-test.txt" :direction :input
  28                  :element-type :default
  29                  :external-format :utf-8)
  30   (assert (eql (read-char s nil s) #\A))
  31   (assert (eql (read-byte s nil s) 66))
  32   (assert (eql (read-byte s nil s) #xe0))
  33   (assert (eql (read-char s nil s) #\C)))
  34
  35 (delete-file "bivalent-stream-test.txt")
  36