www.aleph1.co.uk Git - yaffs-website/blob - vendor/lsolesen/pel/test/DataWindowTest.php

   1 <?php
   2
   3 /**
   4  * PEL: PHP Exif Library.
   5  * A library with support for reading and
   6  * writing all Exif headers in JPEG and TIFF images using PHP.
   7  *
   8  * Copyright (C) 2004 Martin Geisler.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program in the file COPYING; if not, write to the
  22  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  23  * Boston, MA 02110-1301 USA
  24  */
  25
  26 use lsolesen\pel\PelDataWindow;
  27 use lsolesen\pel\PelConvert;
  28 use lsolesen\pel\PelDataWindowOffsetException;
  29
  30 class DataWindowTest extends \PHPUnit_Framework_TestCase
  31 {
  32
  33     function testReadBytes()
  34     {
  35         $window = new PelDataWindow('abcdefgh');
  36
  37         $this->assertEquals($window->getSize(), 8);
  38         $this->assertEquals($window->getBytes(), 'abcdefgh');
  39
  40         $this->assertEquals($window->getBytes(0), 'abcdefgh');
  41         $this->assertEquals($window->getBytes(1), 'bcdefgh');
  42         $this->assertEquals($window->getBytes(7), 'h');
  43         // $this->assertEquals($window->getBytes(8), '');
  44
  45         $this->assertEquals($window->getBytes(- 1), 'h');
  46         $this->assertEquals($window->getBytes(- 2), 'gh');
  47         $this->assertEquals($window->getBytes(- 7), 'bcdefgh');
  48         $this->assertEquals($window->getBytes(- 8), 'abcdefgh');
  49
  50         $clone = $window->getClone(2, 4);
  51         $this->assertEquals($clone->getSize(), 4);
  52         $this->assertEquals($clone->getBytes(), 'cdef');
  53
  54         $this->assertEquals($clone->getBytes(0), 'cdef');
  55         $this->assertEquals($clone->getBytes(1), 'def');
  56         $this->assertEquals($clone->getBytes(3), 'f');
  57         // $this->assertEquals($clone->getBytes(4), '');
  58
  59         $this->assertEquals($clone->getBytes(- 1), 'f');
  60         $this->assertEquals($clone->getBytes(- 2), 'ef');
  61         $this->assertEquals($clone->getBytes(- 3), 'def');
  62         $this->assertEquals($clone->getBytes(- 4), 'cdef');
  63
  64         $caught = false;
  65         try {
  66             $clone->getBytes(0, 6);
  67         } catch (PelDataWindowOffsetException $e) {
  68             $caught = true;
  69         }
  70         $this->assertTrue($caught);
  71     }
  72
  73     function testReadIntegers()
  74     {
  75         $window = new PelDataWindow("\x01\x02\x03\x04", PelConvert::BIG_ENDIAN);
  76
  77         $this->assertEquals($window->getSize(), 4);
  78         $this->assertEquals($window->getBytes(), "\x01\x02\x03\x04");
  79
  80         $this->assertEquals($window->getByte(0), 0x01);
  81         $this->assertEquals($window->getByte(1), 0x02);
  82         $this->assertEquals($window->getByte(2), 0x03);
  83         $this->assertEquals($window->getByte(3), 0x04);
  84
  85         $this->assertEquals($window->getShort(0), 0x0102);
  86         $this->assertEquals($window->getShort(1), 0x0203);
  87         $this->assertEquals($window->getShort(2), 0x0304);
  88
  89         $this->assertEquals($window->getLong(0), 0x01020304);
  90
  91         $window->setByteOrder(PelConvert::LITTLE_ENDIAN);
  92         $this->assertEquals($window->getSize(), 4);
  93         $this->assertEquals($window->getBytes(), "\x01\x02\x03\x04");
  94
  95         $this->assertEquals($window->getByte(0), 0x01);
  96         $this->assertEquals($window->getByte(1), 0x02);
  97         $this->assertEquals($window->getByte(2), 0x03);
  98         $this->assertEquals($window->getByte(3), 0x04);
  99
 100         $this->assertEquals($window->getShort(0), 0x0201);
 101         $this->assertEquals($window->getShort(1), 0x0302);
 102         $this->assertEquals($window->getShort(2), 0x0403);
 103
 104         $this->assertEquals($window->getLong(0), 0x04030201);
 105     }
 106
 107     function testReadBigIntegers()
 108     {
 109         $window = new PelDataWindow("\x89\xAB\xCD\xEF", PelConvert::BIG_ENDIAN);
 110
 111         $this->assertEquals($window->getSize(), 4);
 112         $this->assertEquals($window->getBytes(), "\x89\xAB\xCD\xEF");
 113
 114         $this->assertEquals($window->getByte(0), 0x89);
 115         $this->assertEquals($window->getByte(1), 0xAB);
 116         $this->assertEquals($window->getByte(2), 0xCD);
 117         $this->assertEquals($window->getByte(3), 0xEF);
 118
 119         $this->assertEquals($window->getShort(0), 0x89AB);
 120         $this->assertEquals($window->getShort(1), 0xABCD);
 121         $this->assertEquals($window->getShort(2), 0xCDEF);
 122
 123         $this->assertEquals($window->getLong(0), 0x89ABCDEF);
 124
 125         $window->setByteOrder(PelConvert::LITTLE_ENDIAN);
 126         $this->assertEquals($window->getSize(), 4);
 127         $this->assertEquals($window->getBytes(), "\x89\xAB\xCD\xEF");
 128
 129         $this->assertEquals($window->getByte(0), 0x89);
 130         $this->assertEquals($window->getByte(1), 0xAB);
 131         $this->assertEquals($window->getByte(2), 0xCD);
 132         $this->assertEquals($window->getByte(3), 0xEF);
 133
 134         $this->assertEquals($window->getShort(0), 0xAB89);
 135         $this->assertEquals($window->getShort(1), 0xCDAB);
 136         $this->assertEquals($window->getShort(2), 0xEFCD);
 137
 138         $this->assertEquals($window->getLong(0), 0xEFCDAB89);
 139     }
 140 }