#!/usr/local/bin/guile \
-e main -s
!#

;;;; guile-test --- run the Guile test suite
;;;; Jim Blandy <jimb@red-bean.com> --- May 1999
;;;;
;;;; 	Copyright (C) 1999 Free Software Foundation, Inc.
;;;; 
;;;; This program is free software; you can redistribute it and/or modify
;;;; it under the terms of the GNU General Public License as published by
;;;; the Free Software Foundation; either version 2, or (at your option)
;;;; any later version.
;;;; 
;;;; This program is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;;; GNU General Public License for more details.
;;;; 
;;;; You should have received a copy of the GNU General Public License
;;;; along with this software; see the file COPYING.  If not, write to
;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
;;;; Boston, MA 02111-1307 USA



;;;; Usage: guile-test [--log-file LOG] [TEST ...]
;;;;
;;;; Run tests from the Guile test suite.  Report failures and
;;;; unexpected passes to the standard output, along with a summary of
;;;; all the results.  Record each reported test outcome in the log
;;;; file, `guile.log'.
;;;;
;;;; Normally, guile-test scans the test directory, and executes all
;;;; files whose names end in `.test'.  (It assumes they contain
;;;; Scheme code.)  However, you can have it execute specific tests by
;;;; listing their filenames on the command line.
;;;;
;;;; If present, the `--log-file LOG' option tells `guile-test' to put
;;;; the log output in a file named LOG.
;;;;
;;;; Installation:
;;;;
;;;; Change the #! line at the top of this script to point at the
;;;; Guile interpreter you want to test.  Edit `test-suite/paths.scm'
;;;; so that datadir points to the parent directory of the `tests' tree.
;;;;
;;;; Shortcomings:
;;;;
;;;; At the moment, due to a simple-minded implementation, test files
;;;; must live in the test directory, and you must specify their names
;;;; relative to the top of the test directory.  If you want to send
;;;; me a patche that fixes this, but still leaves sane test names in
;;;; the log file, that would be great.  At the moment, all the tests
;;;; I care about are in the test directory, though.
;;;;
;;;; It would be nice if you could specify the Guile interpreter you
;;;; want to test on the command line.  As it stands, if you want to
;;;; change which Guile interpreter you're testing, you need to edit
;;;; the #! line at the top of this file, which is stupid.

(use-modules (test-suite lib)
	     (test-suite paths)
	     (ice-9 getopt-long)
	     (ice-9 and-let*))


;;; General utilities, that probably should be in a library somewhere.

;;; Traverse the directory tree at ROOT, applying F to the name of
;;; each file in the tree, including ROOT itself.  For a subdirectory
;;; SUB, if (F SUB) is true, we recurse into SUB.  Do not follow
;;; symlinks.
(define (for-each-file f root)

  ;; A "hard directory" is a path that denotes a directory and is not a 
  ;; symlink.
  (define (file-is-hard-directory? filename)
    (eq? (stat:type (lstat filename)) 'directory))

  (let visit ((root root))
    (let ((should-recur (f root)))
      (if (and should-recur (file-is-hard-directory? root))
	  (let ((dir (opendir root)))
	    (let loop ()
	      (let ((entry (readdir dir)))
		(cond 
		 ((eof-object? entry) #f)
		 ((or (string=? entry ".")
		      (string=? entry ".."))
		  (loop))
		 (else
		  (visit (string-append root "/" entry))
		  (loop))))))))))



;;; The test driver.

(define test-root (in-vicinity datadir "tests"))

(define (test-file-name test)
  (in-vicinity test-root test))

;;; Return a list of all the test files in the test tree.
(define (enumerate-tests)
  (let ((root-len (+ 1 (string-length test-root)))
	(tests '()))
    (for-each-file (lambda (file)
		     (if (has-suffix? file ".test")
			 (let ((short-name
				(substring file root-len)))
			   (set! tests (cons short-name tests))))
		     #t)
		   test-root)

    ;; for-each-file presents the files in whatever order it finds
    ;; them in the directory.  We sort them here, so they'll always
    ;; appear in the same order.  This makes it easier to compare test
    ;; log files mechanically.
    (sort tests string<?)))

(define (main args)
  (let ((options (getopt-long args
			      `((log-file (single-char #\l)
					  (value #t))))))
    (define (opt tag default)
      (let ((pair (assq tag options)))
	(if pair (cdr pair) default)))
    (let ((log-file (opt 'log-file "guile.log"))
	  (tests (let ((foo (opt '() '())))
		   (if (null? foo) (enumerate-tests)
		       foo))))

      ;; Open the log file.
      (let ((log-port (open-output-file log-file)))

	;; Register some reporters.
	(let ((counter (make-count-reporter)))
	  (register-reporter (car counter))
	  (register-reporter (make-log-reporter log-port))
	  (register-reporter user-reporter)

	  ;; Run the tests.
	  (for-each (lambda (test)
		      (with-test-prefix test
			(catch-test-errors
			 (load (test-file-name test)))))
		    tests)

	  ;; Display the final counts, both to the user and in the log
	  ;; file.
	  (let ((counts ((cadr counter))))
	    (print-counts counts)
	    (print-counts counts log-port))

	  (close-port log-port))))))


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;;; mode: scheme
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