/usr/share/common-lisp/source/chipz/tests.lisp is in cl-chipz 20130128-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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;; - ASDF
;; - the salza2 library (http://www.xach.com/lisp/salza2)
;; - "bzip2" program (in PATH)
;; how to run the tests:
;; - load this file, tests.lisp, into your lisp environment
;; - create an empty directory, known hereafter as <test-files-dir>
;; - put some files into the directory, their extension shall be "uncompressed"
;; - compress the test files by running (chipz-tests:compress-test-files <test-files-dir>)
;; you only need to do this once
;; - execute (chipz-tests:run-all-tests <test-files-dir>)
(asdf:oos 'asdf:load-op "chipz")
(asdf:oos 'asdf:load-op "salza2")
(defpackage :chipz-tests
(:use :cl :chipz)
(:export #:run-all-tests #:compress-test-files))
(in-package :chipz-tests)
(defun test/whole-file (format compressed-pathname original-pathname)
(with-open-file (compressed-stream compressed-pathname :direction :input
:element-type '(unsigned-byte 8))
(with-open-file (stream original-pathname :direction :input
:element-type '(unsigned-byte 8))
(let ((compressed-input (make-array (file-length compressed-stream)
:element-type '(unsigned-byte 8)))
(output (make-array (file-length stream)
:element-type '(unsigned-byte 8)))
(original (make-array (file-length stream)
:element-type '(unsigned-byte 8)))
(zstream (make-dstate format)))
(let ((compressed-bytes (read-sequence compressed-input compressed-stream)))
(read-sequence original stream)
(multiple-value-bind (bytes-read bytes-output)
(decompress output zstream compressed-input :input-end compressed-bytes)
(and (= bytes-read compressed-bytes)
(= bytes-output (length original))
(not (mismatch output original :end1 bytes-output
:end2 bytes-output)))))))))
(defun test/whole-file-cons (format compressed-pathname original-pathname)
(with-open-file (compressed-stream compressed-pathname :direction :input
:element-type '(unsigned-byte 8))
(with-open-file (stream original-pathname :direction :input
:element-type '(unsigned-byte 8))
(let ((compressed-input (make-array (file-length compressed-stream)
:element-type '(unsigned-byte 8)))
(original (make-array (file-length stream)
:element-type '(unsigned-byte 8))))
(read-sequence compressed-input compressed-stream)
(let ((output (decompress nil format compressed-input)))
(read-sequence original stream)
(and (= (length original) (length output))
(not (mismatch output original))))))))
(defun test/incremental-file (format compressed-pathname original-pathname)
(with-open-file (compressed-stream compressed-pathname :direction :input
:element-type '(unsigned-byte 8))
(with-open-file (stream original-pathname :direction :input
:element-type '(unsigned-byte 8))
(let ((compressed-input (make-array (file-length compressed-stream)
:element-type '(unsigned-byte 8)))
(output (make-array (file-length stream)
:element-type '(unsigned-byte 8)))
(original (make-array (file-length stream)
:element-type '(unsigned-byte 8)))
(zstream (make-dstate format)))
(read-sequence original stream)
(let ((compressed-bytes (read-sequence compressed-input compressed-stream))
(input-index 0)
(output-index 0))
(loop
(multiple-value-bind (bytes-read bytes-output)
(decompress output zstream compressed-input
:input-start input-index
:input-end compressed-bytes
:output-start output-index
:output-end (1+ output-index))
(when (zerop bytes-output) (return))
(let ((ouch (mismatch original output
:start1 output-index :start2 output-index
:end1 (1+ output-index) :end2 (1+ output-index))))
(when ouch
(return nil)))
(incf input-index bytes-read)
(incf output-index)))
(and (= input-index compressed-bytes))
(= output-index (length original))
(not (mismatch output original :end1 output-index
:end2 output-index)))))))
#+chipz-system:gray-streams
(defun test/gray-stream-read-sequence (format compressed-pathname original-pathname)
(with-open-file (compressed-stream compressed-pathname :direction :input
:element-type '(unsigned-byte 8))
(with-open-file (stream original-pathname :direction :input
:element-type '(unsigned-byte 8))
(let ((zstream (make-decompressing-stream format compressed-stream))
(output (make-array (file-length stream)
:element-type '(unsigned-byte 8)))
(original (make-array (file-length stream)
:element-type '(unsigned-byte 8))))
(read-sequence output zstream)
(read-sequence original stream)
(not (mismatch output original))))))
#+chipz-system:gray-streams
(defun test/gray-stream-read-byte (format compressed-pathname original-pathname)
(with-open-file (compressed-stream compressed-pathname :direction :input
:element-type '(unsigned-byte 8))
(with-open-file (stream original-pathname :direction :input
:element-type '(unsigned-byte 8))
(let ((zstream (make-decompressing-stream format compressed-stream))
(output (make-array (file-length stream)
:element-type '(unsigned-byte 8)))
(original (make-array (file-length stream)
:element-type '(unsigned-byte 8))))
(loop for i from 0 below (file-length stream) do
(progn
(setf (aref output i) (read-byte zstream))
(setf (aref original i) (read-byte stream))))
(not (mismatch output original))))))
(defparameter *default-test-files-dir*
(make-pathname
:directory (append (pathname-directory *LOAD-TRUENAME*) '("test-files"))
:device (pathname-device *LOAD-TRUENAME*)
:host (pathname-host *LOAD-TRUENAME*)))
(defparameter *test-functions*
(list 'test/whole-file
'test/whole-file-cons
'test/incremental-file
#+chipz-system:gray-streams 'test/gray-stream-read-sequence
#+chipz-system:gray-streams 'test/gray-stream-read-byte))
(defparameter *formats*
'(gzip zlib deflate bzip2))
(defmacro dolist/every ((var list-form) &body body)
(let ((all-ok (gensym)))
`(reduce
(lambda (,all-ok ,var) (and (progn ,@body) ,all-ok))
,list-form :initial-value t)))
(defun run-all-tests (&optional (test-files-dir *default-test-files-dir*))
(labels ((run-test (testfun format uncompressed-file)
(let ((compressed (make-pathname :type (symbol-name format)
:defaults uncompressed-file)))
(format t "; ~A ~A~%" (symbol-name testfun) compressed)
(with-simple-restart (skip-test "skip ~A ~A" (symbol-name testfun) compressed)
(assert (probe-file compressed))
(let* ((begin (get-internal-run-time))
(result (funcall testfun format compressed uncompressed-file))
(end (get-internal-run-time))
(secs (/ (- end begin) internal-time-units-per-second)))
(if result
(format t "; PASSED (~4$ seconds)~%" secs)
(format t "; FAILED (~4$ seconds) ~A~%" secs result))
result)))))
(let* ((uncompressed (make-pathname :name :wild :type "uncompressed"
:defaults test-files-dir)))
(dolist/every (testfun *test-functions*)
(dolist/every (format *formats*)
(dolist/every (file (directory uncompressed))
(run-test testfun format file)))))))
(defun run-salza2 (compressor-class input-file output-file)
(with-open-file (in-stream input-file :element-type '(unsigned-byte 8))
(with-open-file (out-stream output-file :element-type '(unsigned-byte 8)
:direction :output
:if-exists :supersede)
(let ((buffer (make-array 100000 :element-type '(unsigned-byte 8)))
(callback (salza2:make-stream-output-callback out-stream)))
(salza2:with-compressor (comp compressor-class :callback callback)
(loop
(let ((bytes-read (read-sequence buffer in-stream)))
(if (zerop bytes-read)
(return)
(salza2:compress-octet-vector buffer comp :end bytes-read)))))))))
(defun run-external (output-file executable &rest args)
#+lispworks
(system:run-shell-command ;; cmd argv[0] argv[1..]
(map 'vector #'identity (list* executable executable args))
:output output-file :if-output-exists :supersede)
#+sbcl
(sb-ext:run-program
executable args :search t :output output-file :if-output-exists :supersede)
#+openmcl
(ccl:run-program
executable args :output output-file :if-output-exists :supersede)
#+cmu
(extensions:run-program
executable args :output output-file :if-output-exists :supersede)
#+clisp
(ext:run-program
executable :arguments args :output output-file :if-output-exists :overwrite)
#-(or lispworks sbcl openmcl cmu clisp)
(error "run-external is not supported for this lisp implementation"))
(defun compress-test-files (&optional (test-files-dir *default-test-files-dir*))
(let ((uncompressed (make-pathname :name :wild :type "uncompressed"
:defaults test-files-dir)))
(dolist (input (directory uncompressed))
(format t "; compressing ~A~%" input)
(dolist (format *formats*)
(let ((output (make-pathname :type (symbol-name format) :defaults input)))
(ecase format
(deflate (run-salza2 'salza2:deflate-compressor input output))
(zlib (run-salza2 'salza2:zlib-compressor input output))
(gzip (run-salza2 'salza2:gzip-compressor input output))
(bzip2 (run-external output "bzip2" "-c" (namestring input)))))))))
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