-;;;; This file is for compiler tests which have side effects (e.g.
-;;;; executing DEFUN) but which don't need any special side-effecting
-;;;; environmental stuff (e.g. DECLAIM of particular optimization
-;;;; settings). Similar tests which *do* expect special settings may
-;;;; be in files compiler-1.impure.lisp, compiler-2.impure.lisp, etc.
+;;;; tests related to Gray streams
;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
;;;; While most of SBCL is derived from the CMU CL system, the test
;;;; files (like this one) were written from scratch after the fork
;;;; from CMU CL.
-;;;;
+;;;;
;;;; This software is in the public domain and is provided with
;;;; absolutely no warranty. See the COPYING and CREDITS files for
;;;; more information.
(defclass character-output-stream (fundamental-character-output-stream)
((lisp-stream :initarg :lisp-stream
- :accessor character-output-stream-lisp-stream)))
-
+ :accessor character-output-stream-lisp-stream)
+ (position :initform 42 :accessor character-output-stream-position)))
+
(defclass character-input-stream (fundamental-character-input-stream)
((lisp-stream :initarg :lisp-stream
- :accessor character-input-stream-lisp-stream)))
-\f
+ :accessor character-input-stream-lisp-stream)))
+\f
;;;; example character output stream encapsulating a lisp-stream
(defun make-character-output-stream (lisp-stream)
(make-instance 'character-output-stream :lisp-stream lisp-stream))
-
+
(defmethod open-stream-p ((stream character-output-stream))
(open-stream-p (character-output-stream-lisp-stream stream)))
-
+
(defmethod close ((stream character-output-stream) &key abort)
(close (character-output-stream-lisp-stream stream) :abort abort))
-
+
(defmethod input-stream-p ((stream character-output-stream))
(input-stream-p (character-output-stream-lisp-stream stream)))
(defmethod stream-clear-output ((stream character-output-stream))
(clear-output (character-output-stream-lisp-stream stream)))
+
+(defmethod stream-file-position ((stream character-output-stream) &optional new-value)
+ (if new-value
+ (setf (character-output-stream-position stream) new-value)
+ (character-output-stream-position stream)))
\f
;;;; example character input stream encapsulating a lisp-stream
;;; bare Gray streams and thus bogusly omitting pretty-printing
;;; operations.
(flet ((frob ()
- (with-output-to-string (string)
- (let ((gray-output-stream (make-character-output-stream string)))
- (format gray-output-stream
- "~@<testing: ~@:_pretty Gray line breaks~:>~%")))))
+ (with-output-to-string (string)
+ (let ((gray-output-stream (make-character-output-stream string)))
+ (format gray-output-stream
+ "~@<testing: ~@:_pretty Gray line breaks~:>~%")))))
(assert (= 1 (count #\newline (let ((*print-pretty* nil)) (frob)))))
(assert (= 2 (count #\newline (let ((*print-pretty* t)) (frob))))))
(defclass binary-to-char-output-stream (fundamental-binary-output-stream)
((lisp-stream :initarg :lisp-stream
- :accessor binary-to-char-output-stream-lisp-stream)))
-
+ :accessor binary-to-char-output-stream-lisp-stream)))
+
(defclass binary-to-char-input-stream (fundamental-binary-input-stream)
((lisp-stream :initarg :lisp-stream
- :accessor binary-to-char-input-stream-lisp-stream)))
+ :accessor binary-to-char-input-stream-lisp-stream)))
(defmethod stream-element-type ((stream binary-to-char-output-stream))
'(unsigned-byte 8))
(defun make-binary-to-char-input-stream (lisp-stream)
(make-instance 'binary-to-char-input-stream
- :lisp-stream lisp-stream))
+ :lisp-stream lisp-stream))
(defun make-binary-to-char-output-stream (lisp-stream)
(make-instance 'binary-to-char-output-stream
- :lisp-stream lisp-stream))
-
+ :lisp-stream lisp-stream))
+
(defmethod stream-read-byte ((stream binary-to-char-input-stream))
(let ((char (read-char
- (binary-to-char-input-stream-lisp-stream stream) nil :eof)))
+ (binary-to-char-input-stream-lisp-stream stream) nil :eof)))
(if (eq char :eof)
- char
- (char-code char))))
+ char
+ (char-code char))))
(defmethod stream-write-byte ((stream binary-to-char-output-stream) integer)
(let ((char (code-char integer)))
(write-char char
- (binary-to-char-output-stream-lisp-stream stream))))
-\f
+ (binary-to-char-output-stream-lisp-stream stream))))
+\f
;;;; tests using binary i/o, using the above
(let ((test-string (format nil
"~% This is a test.~& This is the second line.~
- ~% This should be the third and last line.~%")))
+ ~% This should be the third and last line.~%")))
(with-input-from-string (foo test-string)
(assert (equal
(with-output-to-string (bar)
(let ((our-bin-to-char-input (make-binary-to-char-input-stream
- foo))
+ foo))
(our-bin-to-char-output (make-binary-to-char-output-stream
- bar)))
+ bar)))
(assert (open-stream-p our-bin-to-char-input))
(assert (open-stream-p our-bin-to-char-output))
(assert (input-stream-p our-bin-to-char-input))
((eq byte :eof))
(write-byte byte our-bin-to-char-output))))
test-string))))
+
\f
-;;;; Voila!
-(quit :unix-status 104) ; success
+;;; Minimal test of file-position
+(let ((stream (make-instance 'character-output-stream)))
+ (assert (= (file-position stream) 42))
+ (assert (file-position stream 50))
+ (assert (= (file-position stream) 50)))
+
+;;; Using gray streams as parts of two-way-, concatenate-, and synonym-streams.
+
+(defvar *gray-binary-data*
+ (let ((vector (make-array 1024 :element-type '(unsigned-byte 8) :fill-pointer 0)))
+ (dotimes (i (length vector))
+ (setf (aref vector i) (random 256)))
+ vector))
+
+(defun vector-hop-or-eof (vector)
+ (let ((pos (fill-pointer vector)))
+ (if (< pos (array-total-size vector))
+ (prog1
+ (aref vector pos)
+ (incf (fill-pointer vector)))
+ :eof)))
+
+(defclass part-of-composite-stream (fundamental-binary-input-stream)
+ ())
+
+(defmethod stream-read-byte ((stream part-of-composite-stream))
+ (vector-hop-or-eof *gray-binary-data*))
+
+(defmethod stream-element-type ((stream part-of-composite-stream))
+ '(unsigned-byte 8))
+
+(defvar *part-of-composite* (make-instance 'part-of-composite-stream))
+
+(defun test-composite-reads (&rest streams)
+ (dolist (stream streams)
+ (setf (fill-pointer *gray-binary-data*) 0)
+ (let ((binary-buffer (make-array 1024 :element-type '(unsigned-byte 8))))
+ (assert (eql 1024 (read-sequence binary-buffer stream)))
+ (dotimes (i 1024)
+ (unless (eql (aref *gray-binary-data* i)
+ (aref binary-buffer i))
+ (error "wanted ~S at ~S, got ~S (~S)"
+ (aref *gray-binary-data* i)
+ i
+ (aref binary-buffer i)
+ stream))))))
+
+(test-composite-reads
+ (make-two-way-stream *part-of-composite* *standard-output*)
+ (make-concatenated-stream *part-of-composite*)
+ (make-synonym-stream '*part-of-composite*))
+
+;;; Using STREAM-FILE-POSITION on an ANSI-STREAM
+(with-output-to-string (s)
+ (assert (zerop (file-position s)))
+ (assert (zerop (stream-file-position s))))
projects / sbcl.git / blobdiff