<?php
/*
* This file is part of PHP Copy/Paste Detector (PHPCPD).
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

if (!defined('TEST_FILES_PATH')) {
define(
'TEST_FILES_PATH',
dirname(__FILE__) . DIRECTORY_SEPARATOR . '_files' . DIRECTORY_SEPARATOR
);
}

use PHPUnit\Framework\TestCase;

class PHPCPD_DetectorTest extends TestCase
{
/**
* @covers SebastianBergmann\PHPCPD\Detector\Detector::copyPasteDetection
* @covers SebastianBergmann\PHPCPD\CodeClone::getLines
* @dataProvider strategyProvider
*/
public function testDetectingSimpleClonesWorks($strategy)
{
$detector = new SebastianBergmann\PHPCPD\Detector\Detector(new $strategy);

$clones = $detector->copyPasteDetection(
[TEST_FILES_PATH . 'Math.php']
);

$clones = $clones->getClones();
$files = $clones[0]->getFiles();
$file = current($files);

$this->assertEquals(TEST_FILES_PATH . 'Math.php', $file->getName());
$this->assertEquals(75, $file->getStartLine());

$file = next($files);

$this->assertEquals(TEST_FILES_PATH . 'Math.php', $file->getName());
$this->assertEquals(139, $file->getStartLine());
$this->assertEquals(59, $clones[0]->getSize());
$this->assertEquals(136, $clones[0]->getTokens());

$this->assertEquals(
' public function div($v1, $v2)
{
$v3 = $v1 / ($v2 + $v1);
if ($v3 > 14)
{
$v4 = 0;
for ($i = 0; $i < $v3; $i++)
{
$v4 += ($v2 * $i);
}
}
$v5 = ($v4 < $v3 ? ($v3 - $v4) : ($v4 - $v3));

$v6 = ($v1 * $v2 * $v3 * $v4 * $v5);

$d = array($v1, $v2, $v3, $v4, $v5, $v6);

$v7 = 1;
for ($i = 0; $i < $v6; $i++)
{
shuffle( $d );
$v7 = $v7 + $i * end($d);
}

$v8 = $v7;
foreach ( $d as $x )
{
$v8 *= $x;
}

$v3 = $v1 / ($v2 + $v1);
if ($v3 > 14)
{
$v4 = 0;
for ($i = 0; $i < $v3; $i++)
{
$v4 += ($v2 * $i);
}
}
$v5 = ($v4 < $v3 ? ($v3 - $v4) : ($v4 - $v3));

$v6 = ($v1 * $v2 * $v3 * $v4 * $v5);

$d = array($v1, $v2, $v3, $v4, $v5, $v6);

$v7 = 1;
for ($i = 0; $i < $v6; $i++)
{
shuffle( $d );
$v7 = $v7 + $i * end($d);
}

$v8 = $v7;
foreach ( $d as $x )
{
$v8 *= $x;
}

return $v8;
',
$clones[0]->getLines()
);
}

/**
* @covers SebastianBergmann\PHPCPD\Detector\Detector::copyPasteDetection
* @dataProvider strategyProvider
*/
public function testDetectingExactDuplicateFilesWorks($strategy)
{
$detector = new SebastianBergmann\PHPCPD\Detector\Detector(new $strategy);

$clones = $detector->copyPasteDetection([
TEST_FILES_PATH . 'a.php',
TEST_FILES_PATH . 'b.php'
], 20, 60);

$clones = $clones->getClones();
$files = $clones[0]->getFiles();
$file = current($files);

$this->assertCount(1, $clones);
$this->assertEquals(TEST_FILES_PATH . 'a.php', $file->getName());
$this->assertEquals(4, $file->getStartLine());

$file = next($files);

$this->assertEquals(TEST_FILES_PATH . 'b.php', $file->getName());
$this->assertEquals(4, $file->getStartLine());
$this->assertEquals(20, $clones[0]->getSize());
$this->assertEquals(60, $clones[0]->getTokens());
}

/**
* @covers SebastianBergmann\PHPCPD\Detector\Detector::copyPasteDetection
* @dataProvider strategyProvider
*/
public function testDetectingClonesInMoreThanTwoFiles($strategy)
{
$detector = new SebastianBergmann\PHPCPD\Detector\Detector(new $strategy);

$clones = $detector->copyPasteDetection(
[
TEST_FILES_PATH . 'a.php',
TEST_FILES_PATH . 'b.php',
TEST_FILES_PATH . 'c.php',
],
20,
60
);

$clones = $clones->getClones();
$files = $clones[0]->getFiles();
sort($files);

$file = current($files);

$this->assertCount(1, $clones);
$this->assertEquals(TEST_FILES_PATH . 'a.php', $file->getName());
$this->assertEquals(4, $file->getStartLine());

$file = next($files);

$this->assertEquals(TEST_FILES_PATH . 'b.php', $file->getName());
$this->assertEquals(4, $file->getStartLine());

$file = next($files);

$this->assertEquals(TEST_FILES_PATH . 'c.php', $file->getName());
$this->assertEquals(4, $file->getStartLine());
}

/**
* @covers SebastianBergmann\PHPCPD\Detector\Detector::copyPasteDetection
* @dataProvider strategyProvider
*/
public function testClonesAreIgnoredIfTheySpanLessTokensThanMinTokens($strategy)
{
$detector = new SebastianBergmann\PHPCPD\Detector\Detector(new $strategy);

$clones = $detector->copyPasteDetection(
[
TEST_FILES_PATH . 'a.php',
TEST_FILES_PATH . 'b.php'
],
20,
61
);

$this->assertCount(0, $clones->getClones());
}

/**
* @covers SebastianBergmann\PHPCPD\Detector\Detector::copyPasteDetection
* @dataProvider strategyProvider
*/
public function testClonesAreIgnoredIfTheySpanLessLinesThanMinLines($strategy)
{
$detector = new SebastianBergmann\PHPCPD\Detector\Detector(new $strategy);

$clones = $detector->copyPasteDetection(
[
TEST_FILES_PATH . 'a.php',
TEST_FILES_PATH . 'b.php'
],
21,
60
);

$this->assertCount(0, $clones->getClones());
}

/**
* @covers SebastianBergmann\PHPCPD\Detector\Detector::copyPasteDetection
* @dataProvider strategyProvider
*/
public function testFuzzyClonesAreFound($strategy)
{
$detector = new SebastianBergmann\PHPCPD\Detector\Detector(new $strategy);

$clones = $detector->copyPasteDetection(
[
TEST_FILES_PATH . 'a.php',
TEST_FILES_PATH . 'd.php'
],
5,
20,
true
);

$clones = $clones->getClones();

$this->assertCount(1, $clones);
}

/**
* @covers SebastianBergmann\PHPCPD\Detector\Detector::copyPasteDetection
* @dataProvider strategyProvider
*/
public function testStripComments($strategy)
{
$detector = new SebastianBergmann\PHPCPD\Detector\Detector(new $strategy);
$clones = $detector->copyPasteDetection(
[
TEST_FILES_PATH . 'e.php',
TEST_FILES_PATH . 'f.php'
],
8,
10,
true
);
$clones = $clones->getClones();
$this->assertCount(0, $clones);

$clones = $detector->copyPasteDetection(
[
TEST_FILES_PATH . 'e.php',
TEST_FILES_PATH . 'f.php'
],
7,
10,
true
);
$clones = $clones->getClones();
$this->assertCount(1, $clones);
}

public function strategyProvider()
{
return [
['SebastianBergmann\\PHPCPD\\Detector\\Strategy\\DefaultStrategy']
];
}
}