143 lines
5.3 KiB
PHP
143 lines
5.3 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\PelDataWindow;
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use lsolesen\pel\PelConvert;
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use lsolesen\pel\PelDataWindowOffsetException;
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use PHPUnit\Framework\TestCase;
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class DataWindowTest extends TestCase
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{
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public function testReadBytes()
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{
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$window = new PelDataWindow('abcdefgh');
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$this->assertEquals($window->getSize(), 8);
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$this->assertEquals($window->getBytes(), 'abcdefgh');
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$this->assertEquals($window->getBytes(0), 'abcdefgh');
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$this->assertEquals($window->getBytes(1), 'bcdefgh');
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$this->assertEquals($window->getBytes(7), 'h');
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// $this->assertEquals($window->getBytes(8), '');
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$this->assertEquals($window->getBytes(- 1), 'h');
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$this->assertEquals($window->getBytes(- 2), 'gh');
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$this->assertEquals($window->getBytes(- 7), 'bcdefgh');
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$this->assertEquals($window->getBytes(- 8), 'abcdefgh');
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$clone = $window->getClone(2, 4);
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$this->assertEquals($clone->getSize(), 4);
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$this->assertEquals($clone->getBytes(), 'cdef');
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$this->assertEquals($clone->getBytes(0), 'cdef');
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$this->assertEquals($clone->getBytes(1), 'def');
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$this->assertEquals($clone->getBytes(3), 'f');
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// $this->assertEquals($clone->getBytes(4), '');
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$this->assertEquals($clone->getBytes(- 1), 'f');
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$this->assertEquals($clone->getBytes(- 2), 'ef');
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$this->assertEquals($clone->getBytes(- 3), 'def');
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$this->assertEquals($clone->getBytes(- 4), 'cdef');
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$caught = false;
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try {
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$clone->getBytes(0, 6);
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} catch (PelDataWindowOffsetException $e) {
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$caught = true;
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}
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$this->assertTrue($caught);
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}
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public function testReadIntegers()
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{
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$window = new PelDataWindow("\x01\x02\x03\x04", PelConvert::BIG_ENDIAN);
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$this->assertEquals($window->getSize(), 4);
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$this->assertEquals($window->getBytes(), "\x01\x02\x03\x04");
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$this->assertEquals($window->getByte(0), 0x01);
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$this->assertEquals($window->getByte(1), 0x02);
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$this->assertEquals($window->getByte(2), 0x03);
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$this->assertEquals($window->getByte(3), 0x04);
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$this->assertEquals($window->getShort(0), 0x0102);
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$this->assertEquals($window->getShort(1), 0x0203);
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$this->assertEquals($window->getShort(2), 0x0304);
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$this->assertEquals($window->getLong(0), 0x01020304);
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$window->setByteOrder(PelConvert::LITTLE_ENDIAN);
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$this->assertEquals($window->getSize(), 4);
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$this->assertEquals($window->getBytes(), "\x01\x02\x03\x04");
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$this->assertEquals($window->getByte(0), 0x01);
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$this->assertEquals($window->getByte(1), 0x02);
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$this->assertEquals($window->getByte(2), 0x03);
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$this->assertEquals($window->getByte(3), 0x04);
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$this->assertEquals($window->getShort(0), 0x0201);
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$this->assertEquals($window->getShort(1), 0x0302);
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$this->assertEquals($window->getShort(2), 0x0403);
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$this->assertEquals($window->getLong(0), 0x04030201);
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}
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public function testReadBigIntegers()
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{
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$window = new PelDataWindow("\x89\xAB\xCD\xEF", PelConvert::BIG_ENDIAN);
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$this->assertEquals($window->getSize(), 4);
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$this->assertEquals($window->getBytes(), "\x89\xAB\xCD\xEF");
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$this->assertEquals($window->getByte(0), 0x89);
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$this->assertEquals($window->getByte(1), 0xAB);
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$this->assertEquals($window->getByte(2), 0xCD);
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$this->assertEquals($window->getByte(3), 0xEF);
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$this->assertEquals($window->getShort(0), 0x89AB);
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$this->assertEquals($window->getShort(1), 0xABCD);
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$this->assertEquals($window->getShort(2), 0xCDEF);
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$this->assertEquals($window->getLong(0), 0x89ABCDEF);
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$window->setByteOrder(PelConvert::LITTLE_ENDIAN);
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$this->assertEquals($window->getSize(), 4);
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$this->assertEquals($window->getBytes(), "\x89\xAB\xCD\xEF");
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$this->assertEquals($window->getByte(0), 0x89);
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$this->assertEquals($window->getByte(1), 0xAB);
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$this->assertEquals($window->getByte(2), 0xCD);
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$this->assertEquals($window->getByte(3), 0xEF);
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$this->assertEquals($window->getShort(0), 0xAB89);
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$this->assertEquals($window->getShort(1), 0xCDAB);
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$this->assertEquals($window->getShort(2), 0xEFCD);
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$this->assertEquals($window->getLong(0), 0xEFCDAB89);
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}
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}
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