;;;; Copyright 2005 Juri Pakaste
;;;; 
;;;; This file is part of Lukutoukka.
;;;; 
;;;; Lukutoukka 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 of the License, or
;;;; (at your option) any later version.
;;;; 
;;;; Lukutoukka 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 Lukutoukka; if not, write to the Free Software
;;;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

(define-module (file-write-test)
  #:use-module (lukutoukkalib file)
  #:use-module (lukutoukkalib srfi srfi-56)
  #:use-module (unit-test)
  #:use-module (oop goops)
  #:export (create-test-suite))

(define-class <file-write-test> (<test-case>))

(define-method (test-no-words-file (test-case <file-write-test>))
  (let* ((output-string-port (open-output-string))
         (builder (create-new-file "foo" output-string-port)))
    (end-words builder)
    (let ((result (get-output-string output-string-port)))
      (assert-equal 23 (string-length result))
      (assert-equal (substring result 0 10) "lukutoukka")
      (assert-equal 0 (read-network-uint16 
                        (open-input-string (substring result 10 12))))
      (assert-equal 20 (read-network-uint64 
                        (open-input-string (substring result 12 20))))
      (assert-equal #() (read (open-input-string (substring result 20)))))))

(define-method (test-one-word-file (test-case <file-write-test>))
  (let* ((output-string-port (open-output-string))
         (builder (create-new-file "foo" output-string-port)))
    (save-word builder "kala")
    (end-words builder)
    (let ((result (get-output-string output-string-port)))
      (with-output-to-file "/tmp/kala" (lambda () (display result)))
      (assert-equal 31 (string-length result))
      (assert-equal 26 (read-network-uint64
                        (open-input-string (substring result 12 20))))
      (assert-equal "\"kala\"" (substring result 20 26)))))

(define-method (test-three-word-file (test-case <file-write-test>))
  (let* ((output-string-port (open-output-string))
         (builder (create-new-file "foo" output-string-port)))
    (save-word builder "hauki")
    (save-word builder "on")
    (save-word builder "kala")
    (end-words builder)
    (let ((result (get-output-string output-string-port)))
      (with-output-to-file "/tmp/test-three-word-file" (lambda () (display result)))
      (assert-equal 48 (string-length result))
      (let ((index-vector 
             (read (open-input-string
                    (substring result (read-network-uint64 
                                       (open-input-string 
                                        (substring result 12 20))))))))
        (assert-equal 3 (vector-length index-vector))
        (assert-equal "\"on\"" (substring result (vector-ref index-vector 1)
                                      (vector-ref index-vector 2)))))))

(define (create-test-suite) 
  (let ((suite (make <test-suite> #:name "file-write-test-suite")))
    (add suite (make <file-write-test>))
    suite))