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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 SebastianBergmannComparator;

/**
 * @coversDefaultClass SebastianBergmannComparatorFactory
 *
 */
class FactoryTest extends PHPUnit_Framework_TestCase
{
    public function instanceProvider()
    {
        $tmpfile = tmpfile();

        return array(
            array(NULL, NULL, 'SebastianBergmann\Comparator\ScalarComparator'),
            array(NULL, TRUE, 'SebastianBergmann\Comparator\ScalarComparator'),
            array(TRUE, NULL, 'SebastianBergmann\Comparator\ScalarComparator'),
            array(TRUE, TRUE, 'SebastianBergmann\Comparator\ScalarComparator'),
            array(FALSE, FALSE, 'SebastianBergmann\Comparator\ScalarComparator'),
            array(TRUE, FALSE, 'SebastianBergmann\Comparator\ScalarComparator'),
            array(FALSE, TRUE, 'SebastianBergmann\Comparator\ScalarComparator'),
            array('', '', 'SebastianBergmann\Comparator\ScalarComparator'),
            array('0', '0', 'SebastianBergmann\Comparator\ScalarComparator'),
            array('0', 0, 'SebastianBergmann\Comparator\NumericComparator'),
            array(0, '0', 'SebastianBergmann\Comparator\NumericComparator'),
            array(0, 0, 'SebastianBergmann\Comparator\NumericComparator'),
            array(1.0, 0, 'SebastianBergmann\Comparator\DoubleComparator'),
            array(0, 1.0, 'SebastianBergmann\Comparator\DoubleComparator'),
            array(1.0, 1.0, 'SebastianBergmann\Comparator\DoubleComparator'),
            array(array(1), array(1), 'SebastianBergmann\Comparator\ArrayComparator'),
            array($tmpfile, $tmpfile, 'SebastianBergmann\Comparator\ResourceComparator'),
            array(new stdClass, new stdClass, 'SebastianBergmann\Comparator\ObjectComparator'),
            array(new DateTime, new DateTime, 'SebastianBergmann\Comparator\DateTimeComparator'),
            array(new SplObjectStorage, new SplObjectStorage, 'SebastianBergmann\Comparator\SplObjectStorageComparator'),
            array(new Exception, new Exception, 'SebastianBergmann\Comparator\ExceptionComparator'),
            array(new DOMDocument, new DOMDocument, 'SebastianBergmann\Comparator\DOMNodeComparator'),
            // mixed types
            array($tmpfile, array(1), 'SebastianBergmann\Comparator\TypeComparator'),
            array(array(1), $tmpfile, 'SebastianBergmann\Comparator\TypeComparator'),
            array($tmpfile, '1', 'SebastianBergmann\Comparator\TypeComparator'),
            array('1', $tmpfile, 'SebastianBergmann\Comparator\TypeComparator'),
            array($tmpfile, new stdClass, 'SebastianBergmann\Comparator\TypeComparator'),
            array(new stdClass, $tmpfile, 'SebastianBergmann\Comparator\TypeComparator'),
            array(new stdClass, array(1), 'SebastianBergmann\Comparator\TypeComparator'),
            array(array(1), new stdClass, 'SebastianBergmann\Comparator\TypeComparator'),
            array(new stdClass, '1', 'SebastianBergmann\Comparator\TypeComparator'),
            array('1', new stdClass, 'SebastianBergmann\Comparator\TypeComparator'),
            array(new ClassWithToString, '1', 'SebastianBergmann\Comparator\ScalarComparator'),
            array('1', new ClassWithToString, 'SebastianBergmann\Comparator\ScalarComparator'),
            array(1.0, new stdClass, 'SebastianBergmann\Comparator\TypeComparator'),
            array(new stdClass, 1.0, 'SebastianBergmann\Comparator\TypeComparator'),
            array(1.0, array(1), 'SebastianBergmann\Comparator\TypeComparator'),
            array(array(1), 1.0, 'SebastianBergmann\Comparator\TypeComparator'),
        );
    }

    /**
     * @dataProvider instanceProvider
     * @covers       ::getComparatorFor
     * @covers       ::__construct
     */
    public function testGetComparatorFor($a, $b, $expected)
    {
        $factory = new Factory;
        $actual = $factory->getComparatorFor($a, $b);
        $this->assertInstanceOf($expected, $actual);
    }

    /**
     * @covers ::register
     */
    public function testRegister()
    {
        $comparator = new TestClassComparator;

        $factory = new Factory;
        $factory->register($comparator);

        $a = new TestClass;
        $b = new TestClass;
        $expected = 'SebastianBergmann\Comparator\TestClassComparator';
        $actual = $factory->getComparatorFor($a, $b);

        $factory->unregister($comparator);
        $this->assertInstanceOf($expected, $actual);
    }

    /**
     * @covers ::unregister
     */
    public function testUnregister()
    {
        $comparator = new TestClassComparator;

        $factory = new Factory;
        $factory->register($comparator);
        $factory->unregister($comparator);

        $a = new TestClass;
        $b = new TestClass;
        $expected = 'SebastianBergmann\Comparator\ObjectComparator';
        $actual = $factory->getComparatorFor($a, $b);

        $this->assertInstanceOf($expected, $actual);
    }
}