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;;;; -*- coding: utf-8; mode: scheme; -*-
;;;;
;;;; Copyright (C) 2010, 2013, 2014 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(define-module (test-suite test-print)
#:use-module (ice-9 pretty-print)
#:use-module (test-suite lib))
(define-syntax prints?
;; #t if EXP prints as RESULT.
(syntax-rules ()
((_ exp result)
(string=? result
(with-output-to-string
(lambda ()
(pretty-print 'exp)))))))
(define (with-print-options opts thunk)
(let ((saved-options (print-options)))
(dynamic-wind
(lambda ()
(print-options opts))
thunk
(lambda ()
(print-options saved-options)))))
(define-syntax-rule (write-with-options opts x)
(with-print-options opts (lambda ()
(with-output-to-string
(lambda ()
(write x))))))
(with-test-prefix "write"
(with-test-prefix "r7rs-symbols"
(pass-if-equal "basic"
"|foo bar|"
(write-with-options '(r7rs-symbols)
(string->symbol "foo bar")))
(pass-if-equal "escapes"
"|bar \\| backslash \\x5c; alarm \\a backspace \\b tab \\t newline \\n cr \\r null \\x0; del \\x7f;|"
(write-with-options
'(r7rs-symbols)
(string->symbol
(string-append
"bar | backslash \\ alarm \a backspace \b tab \t newline \n cr \r null \0 del "
(string #\del)))))
(pass-if-equal "brackets"
"|()[]{}|"
(write-with-options '(r7rs-symbols)
(string->symbol "()[]{}")))
(pass-if-equal "starts with bar"
"|\\|foo|"
(write-with-options '(r7rs-symbols)
(string->symbol "|foo")))
(pass-if-equal "ends with bar"
"|foo\\||"
(write-with-options '(r7rs-symbols)
(string->symbol "foo|")))
(pass-if-equal "starts with backslash"
"|\\x5c;foo|"
(write-with-options '(r7rs-symbols)
(string->symbol "\\foo")))
(pass-if-equal "ends with backslash"
"|foo\\x5c;|"
(write-with-options '(r7rs-symbols)
(string->symbol "foo\\")))))
(with-test-prefix "pretty-print"
(pass-if "pair"
(prints? (a . b) "(a . b)\n"))
(pass-if "list"
(prints? (a b c) "(a b c)\n"))
(pass-if "dotted list"
(prints? (a b . c) "(a b . c)\n"))
(pass-if "quote"
(prints? 'foo "'foo\n"))
(pass-if "non-starting quote"
(prints? (foo 'bar) "(foo 'bar)\n"))
(pass-if "nested quote"
(prints? (''foo) "(''foo)\n"))
(pass-if "quasiquote & co."
(prints? (define foo `(bar ,(+ 2 3)))
"(define foo `(bar ,(+ 2 3)))\n")))
(with-test-prefix "truncated-print"
(define exp '(a b #(c d e) f . g))
(define (tprint x width encoding)
(call-with-output-string
(lambda (p)
(set-port-encoding! p encoding)
(truncated-print x p #:width width))))
(pass-if-equal "(a b . #)"
(tprint exp 10 "ISO-8859-1"))
(pass-if-equal "(a b # f . g)"
(tprint exp 15 "ISO-8859-1"))
(pass-if-equal "(a b #(c ...) . #)"
(tprint exp 18 "ISO-8859-1"))
(pass-if-equal "(a b #(c d e) f . g)"
(tprint exp 20 "ISO-8859-1"))
(pass-if-equal "\"The quick brown...\""
(tprint "The quick brown fox" 20 "ISO-8859-1"))
(pass-if-equal "\"The quick brown f…\""
(tprint "The quick brown fox" 20 "UTF-8"))
(pass-if-equal "#<directory (tes...>"
(tprint (current-module) 20 "ISO-8859-1"))
(pass-if-equal "#<directory (test-…>"
(tprint (current-module) 20 "UTF-8")))
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