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<?php
/*
 * This file is part of the Comparator package.
 *
 * (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.
 */

namespace SebastianBergmann\Comparator;

use DOMNode;
use DOMDocument;

/**
 * @coversDefaultClass SebastianBergmann\Comparator\DOMNodeComparator
 *
 */
class DOMNodeComparatorTest extends \PHPUnit_Framework_TestCase
{
    private $comparator;

protected function setUp()
    {
        $this->comparator = new DOMNodeComparator;
    }

public function acceptsSucceedsProvider()
    {
        $document = new DOMDocument;
        $node = new DOMNode;

return array(
          array($document, $document),
          array($node, $node),
          array($document, $node),
          array($node, $document)
        );
    }

public function acceptsFailsProvider()
    {
        $document = new DOMDocument;

return array(
          array($document, null),
          array(null, $document),
          array(null, null)
        );
    }

public function assertEqualsSucceedsProvider()
    {
        return array(
          array(
            $this->createDOMDocument('<root></root>'),
            $this->createDOMDocument('<root/>')
          ),
          array(
            $this->createDOMDocument('<root attr="bar"></root>'),
            $this->createDOMDocument('<root attr="bar"/>')
          ),
          array(
            $this->createDOMDocument('<root><foo attr="bar"></foo></root>'),
            $this->createDOMDocument('<root><foo attr="bar"/></root>')
          ),
          array(
            $this->createDOMDocument("<root>\n  <child/>\n</root>"),
            $this->createDOMDocument('<root><child/></root>')
          ),
        );
    }

public function assertEqualsFailsProvider()
    {
        return array(
          array(
            $this->createDOMDocument('<root></root>'),
            $this->createDOMDocument('<bar/>')
          ),
          array(
            $this->createDOMDocument('<foo attr1="bar"/>'),
            $this->createDOMDocument('<foo attr1="foobar"/>')
          ),
          array(
            $this->createDOMDocument('<foo> bar </foo>'),
            $this->createDOMDocument('<foo />')
          ),
          array(
            $this->createDOMDocument('<foo xmlns="urn:myns:bar"/>'),
            $this->createDOMDocument('<foo xmlns="urn:notmyns:bar"/>')
          ),
          array(
            $this->createDOMDocument('<foo> bar </foo>'),
            $this->createDOMDocument('<foo> bir </foo>')
          )
        );
    }

private function createDOMDocument($content)
    {
        $document = new DOMDocument;
        $document->preserveWhiteSpace = false;
        $document->loadXML($content);

return $document;
    }

/**
     * @covers       ::accepts
     * @dataProvider acceptsSucceedsProvider
     */
    public function testAcceptsSucceeds($expected, $actual)
    {
        $this->assertTrue(
          $this->comparator->accepts($expected, $actual)
        );
    }

/**
     * @covers       ::accepts
     * @dataProvider acceptsFailsProvider
     */
    public function testAcceptsFails($expected, $actual)
    {
        $this->assertFalse(
          $this->comparator->accepts($expected, $actual)
        );
    }

/**
     * @covers       ::assertEquals
     * @dataProvider assertEqualsSucceedsProvider
     */
    public function testAssertEqualsSucceeds($expected, $actual)
    {
        $exception = null;

try {
            $this->comparator->assertEquals($expected, $actual);
        }

catch (ComparisonFailure $exception) {
        }

$this->assertNull($exception, 'Unexpected ComparisonFailure');
    }

/**
     * @covers       ::assertEquals
     * @dataProvider assertEqualsFailsProvider
     */
    public function testAssertEqualsFails($expected, $actual)
    {
        $this->setExpectedException(
          'SebastianBergmann\\Comparator\\ComparisonFailure',
          'Failed asserting that two DOM'
        );
        $this->comparator->assertEquals($expected, $actual);
    }
}