<?php
/**
* StegoSystem Pure LSB UnitTest
*
* @link https://github.com/picamator/SteganographyKit
* @license http://opensource.org/licenses/BSD-3-Clause New BSD License
*/
use Picamator\SteganographyKit\StegoSystem\PureLsb;
use Picamator\SteganographyKit\SecretText\PlainText;
use Picamator\SteganographyKit\Image\Image;
class PureLsbTest extends BaseLsbTest
{
/**
* Pure LSB StegoSystem
*
* @var PureLsb
*/
protected $pureLsb;
public function setUp()
{
parent::setUp();
$this->pureLsb = new PureLsb();
}
/**
* @dataProvider providerEncode
* @param array $optionsCoverText
* @param array $optionsSecretText
*/
public function testEncode(array $optionsCoverText, array $optionsSecretText)
{
$optionsCoverText['path'] = $this->getDataPath($optionsCoverText['path']);
$optionsCoverText['savePath'] = $this->getDataPath(self::$stegoPath) . '/'
. $optionsCoverText['savePath'];
$coverText = new Image($optionsCoverText);
$secretText = new PlainText($optionsSecretText);
$result = $this->pureLsb->encode($secretText, $coverText);
$this->assertTrue($result);
}
/**
* @dataProvider providerDecode
* @param array $optionsStegoText
*/
public function testDecode(array $optionsStegoText, $expected)
{
$optionsStegoText['path'] = $this->getDataPath($optionsStegoText['path']);
$stegoText = new Image($optionsStegoText);
$result = $this->pureLsb->decode($stegoText, new PlainText());
$this->assertEquals($expected, $result);
// var_dump($result);
}
/**
* @dataProvider providerEncodeDecode
* @param array $optionsCoverText
* @param array $optionsSecretText
* @param array $useChannel
*/
public function testEncodeDecode(array $optionsCoverText,
array $optionsSecretText, array $useChannel
) {
$this->encodeDecode($optionsCoverText, $optionsSecretText, $useChannel, $this->pureLsb);
}
public function providerDecode()
{
return array(
array(
array(
'path' => 'lsb/pure/lorem_ipsum_li_200_200.png',
),
'Lorem ipsum Li'
)
);
}
public function providerEncode()
{
return array(
array(
array(
'path' => 'original_200_200.png',
'savePath' => 'original_' . date('Y_m_d_H_i_s') . '.png'
),
array('text' => 'Lorem ipsum Li'),
)
);
}
/**
* DataProvider to generate set of encode information
* to validate how encode-decode is working
*
* before optimizaton it's run 1.7 Min and used 9 MB (1, 12000, array('red', 'green', 'blue')
*
* @return array
*/
public function providerEncodeDecode()
{
return $this->generateProvider(10, 1000, array('red', 'green', 'blue'));
// return $this->generateProvider(1, 12000, array('red', 'green', 'blue'));
}
}
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