;;;; 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 (plain-parser-test)
  #:use-module (lukutoukkalib parsers defs)
  #:use-module (lukutoukkalib parsers common)
  #:use-module (lukutoukkalib parsers plain)
  #:use-module (unit-test)
  #:use-module (oop goops)
  #:export (create-test-suite))

(define-class <plain-parser-test> (<test-case>))

; various 
(define (make-string-parser str)
  (make <plain-text-source> #:port (open-input-string str)))

(define-method (test-empty-string (test-case <plain-parser-test>))
  (let ((result '()))
    (parse-port (make-string-parser "") 
                (lambda (s) (set! result (append result (list s)))))
    (assert-equal '() result)))

(define-method (test-one-word (test-case <plain-parser-test>))
  (let ((words '()))
    (parse-port (make-string-parser "asdf") 
                (lambda (word) (set! words (cons word words))))
    (set! words (reverse! words))
    (assert-equal '("asdf") words)))

(define-method (test-two-words (test-case <plain-parser-test>))
  (let ((words '()))
    (parse-port (make-string-parser "foo bar") 
                (lambda (word) (set! words (cons word words))))
    (assert-equal '("foo" "bar") (reverse! words))))

(define-method (test-many-words (test-case <plain-parser-test>))
  (let ((words '()))
    (parse-port (make-string-parser "foo bar baz quux zappa") 
                (lambda (word) (set! words (cons word words))))
    (assert-equal '("foo" "bar" "baz" "quux" "zappa") (reverse! words))))

(define-method (test-two-spaces (test-case <plain-parser-test>))
  (assert-equal '("foo" "bar") 
                (let ((words '()))
                  (parse-port (make-string-parser "foo  bar")
                              (lambda (word) (set! words (cons word words))))
                  (reverse! words))))

(define-method (test-start-space (test-case <plain-parser-test>))
  (assert-equal '("foo" "bar") 
                (let ((words '()))
                  (parse-port (make-string-parser " foo bar")
                              (lambda (word) (set! words (cons word words))))
                  (reverse! words))))

(define-method (test-end-space (test-case <plain-parser-test>))
  (assert-equal '("foo" "bar") 
                (let ((words '()))
                  (parse-port (make-string-parser "foo bar ")
                              (lambda (word) (set! words (cons word words))))
                  (reverse! words))))

(define-method (test-newline (test-case <plain-parser-test>))
  (assert-equal '("foo" "bar")
                (let ((words '()))
                  (parse-port (make-string-parser 
                               (string-append "foo"
                                              (string #\newline)
                                              "bar"))
                              (lambda (word) (set! words (cons word words))))
                  (reverse! words))))

(define-method (test-newline-and-space (test-case <plain-parser-test>))
  (assert-equal '("foo" "bar")
                (let ((words '()))
                  (parse-port (make-string-parser
                               (string-append "foo "
                                              (string #\newline)
                                              "bar"))
                              (lambda (word) (set! words (cons word words))))
                  (reverse! words))))

(define-method (test-two-newlines (test-case <plain-parser-test>))
  (assert-equal '("foo" "bar")
                (let ((words '()))
                  (parse-port (make-string-parser
                               (string-append "foo"
                                              (make-string 2 #\newline)
                                              "bar"))
                              (lambda (word) (set! words (cons word words))))
                  (reverse! words))))

(define-method (test-carriage-return (test-case <plain-parser-test>))
  (assert-equal '("foo" "bar")
                (let ((words '()))
                  (parse-port (make-string-parser
                               (string-append "foo"
                                              (string #\return)
                                              "bar"))
                              (lambda (word) (set! words (cons word words))))
                  (reverse! words))))

(define-method (test-dos-break (test-case <plain-parser-test>))
  (assert-equal '("foo" "bar")
                (let ((words '()))
                  (parse-port (make-string-parser
                               (string-append "foo"
                                              (string #\return #\newline)
                                              "bar"))
                              (lambda (word) (set! words (cons word words))))
                  (reverse! words))))

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