246 lines
15 KiB
PHP
246 lines
15 KiB
PHP
<?php
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/**
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* PEL: PHP Exif Library.
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* A library with support for reading and
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* writing all Exif headers in JPEG and TIFF images using PHP.
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*
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* Copyright (C) 2004 Martin Geisler.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program in the file COPYING; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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namespace Pel\Test;
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use lsolesen\pel\PelConvert;
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use PHPUnit\Framework\TestCase;
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class ConvertTest extends TestCase
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{
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private $bytes = "\x00\x00\x00\x00\x01\x23\x45\x67\x89\xAB\xCD\xEF\xFF\xFF\xFF\xFF";
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public function testLongLittle()
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{
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$o = PelConvert::LITTLE_ENDIAN;
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 0, $o), 0x00000000);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 1, $o), 0x01000000);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 2, $o), 0x23010000);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 3, $o), 0x45230100);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 4, $o), 0x67452301);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 5, $o), 0x89674523);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 6, $o), 0xAB896745);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 7, $o), 0xCDAB8967);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 8, $o), 0xEFCDAB89);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 9, $o), 0xFFEFCDAB);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 10, $o), 0xFFFFEFCD);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 11, $o), 0xFFFFFFEF);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 12, $o), 0xFFFFFFFF);
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}
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public function testLongBig()
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{
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$o = PelConvert::BIG_ENDIAN;
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 0, $o), 0x00000000);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 1, $o), 0x00000001);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 2, $o), 0x00000123);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 3, $o), 0x00012345);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 4, $o), 0x01234567);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 5, $o), 0x23456789);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 6, $o), 0x456789AB);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 7, $o), 0x6789ABCD);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 8, $o), 0x89ABCDEF);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 9, $o), 0xABCDEFFF);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 10, $o), 0xCDEFFFFF);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 11, $o), 0xEFFFFFFF);
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$this->assertEquals(PelConvert::bytesToLong($this->bytes, 12, $o), 0xFFFFFFFF);
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}
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public function testSLongLittle()
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{
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// TODO: Does not work on 64bit systems!
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$this->markTestIncomplete('Does not work on 64bit systems!');
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$o = PelConvert::LITTLE_ENDIAN;
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/*
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* The easiest way to calculate the numbers to compare with, is to
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* let PHP do the arithmetic for us. When using the bit-wise
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* operators PHP will return a proper signed 32 bit integer.
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*/
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 0, $o), 0x00 << 24 | 0x00 << 16 | 0x00 << 8 | 0x00);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 1, $o), 0x01 << 24 | 0x00 << 16 | 0x00 << 8 | 0x00);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 2, $o), 0x23 << 24 | 0x01 << 16 | 0x00 << 8 | 0x00);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 3, $o), 0x45 << 24 | 0x23 << 16 | 0x01 << 8 | 0x00);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 4, $o), 0x67 << 24 | 0x45 << 16 | 0x23 << 8 | 0x01);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 5, $o), 0x89 << 24 | 0x67 << 16 | 0x45 << 8 | 0x23);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 6, $o), 0xAB << 24 | 0x89 << 16 | 0x67 << 8 | 0x45);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 7, $o), 0xCD << 24 | 0xAB << 16 | 0x89 << 8 | 0x67);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 8, $o), 0xEF << 24 | 0xCD << 16 | 0xAB << 8 | 0x89);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 9, $o), 0xFF << 24 | 0xEF << 16 | 0xCD << 8 | 0xAB);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 10, $o), 0xFF << 24 | 0xFF << 16 | 0xEF << 8 | 0xCD);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 11, $o), 0xFF << 24 | 0xFF << 16 | 0xFF << 8 | 0xEF);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 12, $o), 0xFF << 24 | 0xFF << 16 | 0xFF << 8 | 0xFF);
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}
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public function testSLongBig()
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{
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// TODO: Does not work on 64bit systems
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$this->markTestIncomplete('Does not work on 64bit systems!');
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$o = PelConvert::BIG_ENDIAN;
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 0, $o), 0x00 << 24 | 0x00 << 16 | 0x00 << 8 | 0x00);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 1, $o), 0x00 << 24 | 0x00 << 16 | 0x00 << 8 | 0x01);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 2, $o), 0x00 << 24 | 0x00 << 16 | 0x01 << 8 | 0x23);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 3, $o), 0x00 << 24 | 0x01 << 16 | 0x23 << 8 | 0x45);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 4, $o), 0x01 << 24 | 0x23 << 16 | 0x45 << 8 | 0x67);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 5, $o), 0x23 << 24 | 0x45 << 16 | 0x67 << 8 | 0x89);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 6, $o), 0x45 << 24 | 0x67 << 16 | 0x89 << 8 | 0xAB);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 7, $o), 0x67 << 24 | 0x89 << 16 | 0xAB << 8 | 0xCD);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 8, $o), 0x89 << 24 | 0xAB << 16 | 0xCD << 8 | 0xEF);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 9, $o), 0xAB << 24 | 0xCD << 16 | 0xEF << 8 | 0xFF);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 10, $o), 0xCD << 24 | 0xEF << 16 | 0xFF << 8 | 0xFF);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 11, $o), 0xEF << 24 | 0xFF << 16 | 0xFF << 8 | 0xFF);
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$this->assertEquals(PelConvert::bytesToSLong($this->bytes, 12, $o), 0xFF << 24 | 0xFF << 16 | 0xFF << 8 | 0xFF);
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}
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public function testShortLittle()
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{
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$o = PelConvert::LITTLE_ENDIAN;
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 0, $o), 0x0000);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 1, $o), 0x0000);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 2, $o), 0x0000);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 3, $o), 0x0100);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 4, $o), 0x2301);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 5, $o), 0x4523);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 6, $o), 0x6745);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 7, $o), 0x8967);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 8, $o), 0xAB89);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 9, $o), 0xCDAB);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 10, $o), 0xEFCD);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 11, $o), 0xFFEF);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 12, $o), 0xFFFF);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 13, $o), 0xFFFF);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 14, $o), 0xFFFF);
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}
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public function testShortBig()
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{
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$o = PelConvert::BIG_ENDIAN;
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 0, $o), 0x0000);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 1, $o), 0x0000);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 2, $o), 0x0000);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 3, $o), 0x0001);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 4, $o), 0x0123);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 5, $o), 0x2345);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 6, $o), 0x4567);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 7, $o), 0x6789);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 8, $o), 0x89AB);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 9, $o), 0xABCD);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 10, $o), 0xCDEF);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 11, $o), 0xEFFF);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 12, $o), 0xFFFF);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 13, $o), 0xFFFF);
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$this->assertEquals(PelConvert::bytesToShort($this->bytes, 14, $o), 0xFFFF);
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}
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public function testSShortLittle()
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{
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$o = PelConvert::LITTLE_ENDIAN;
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 0, $o), 0);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 1, $o), 0);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 2, $o), 0);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 3, $o), 256);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 4, $o), 8961);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 5, $o), 17699);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 6, $o), 26437);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 7, $o), - 30361);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 8, $o), - 21623);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 9, $o), - 12885);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 10, $o), - 4147);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 11, $o), - 17);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 12, $o), - 1);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 13, $o), - 1);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 14, $o), - 1);
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}
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public function testSShortBig()
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{
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$o = PelConvert::BIG_ENDIAN;
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 0, $o), 0);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 1, $o), 0);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 2, $o), 0);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 3, $o), 1);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 4, $o), 291);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 5, $o), 9029);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 6, $o), 17767);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 7, $o), 26505);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 8, $o), - 30293);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 9, $o), - 21555);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 10, $o), - 12817);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 11, $o), - 4097);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 12, $o), - 1);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 13, $o), - 1);
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$this->assertEquals(PelConvert::bytesToSShort($this->bytes, 14, $o), - 1);
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}
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public function testByte()
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{
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 0), 0x00);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 1), 0x00);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 2), 0x00);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 3), 0x00);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 4), 0x01);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 5), 0x23);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 6), 0x45);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 7), 0x67);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 8), 0x89);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 9), 0xAB);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 10), 0xCD);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 11), 0xEF);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 12), 0xFF);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 13), 0xFF);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 14), 0xFF);
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$this->assertEquals(PelConvert::bytesToByte($this->bytes, 15), 0xFF);
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}
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public function testSByte()
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{
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 0), 0);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 1), 0);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 2), 0);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 3), 0);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 4), 1);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 5), 35);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 6), 69);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 7), 103);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 8), - 119);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 9), - 85);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 10), - 51);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 11), - 17);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 12), - 1);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 13), - 1);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 14), - 1);
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$this->assertEquals(PelConvert::bytesToSByte($this->bytes, 15), - 1);
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}
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}
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