Chris@14: <?php
Chris@14: /*
Chris@14:  * This file is part of Object Enumerator.
Chris@14:  *
Chris@14:  * (c) Sebastian Bergmann <sebastian@phpunit.de>
Chris@14:  *
Chris@14:  * For the full copyright and license information, please view the LICENSE
Chris@14:  * file that was distributed with this source code.
Chris@14:  */
Chris@14: 
Chris@14: namespace SebastianBergmann\ObjectEnumerator;
Chris@14: 
Chris@14: use SebastianBergmann\ObjectEnumerator\Fixtures\ExceptionThrower;
Chris@14: use PHPUnit\Framework\TestCase;
Chris@14: 
Chris@14: /**
Chris@14:  * @covers SebastianBergmann\ObjectEnumerator\Enumerator
Chris@14:  */
Chris@14: class EnumeratorTest extends TestCase
Chris@14: {
Chris@14:     /**
Chris@14:      * @var Enumerator
Chris@14:      */
Chris@14:     private $enumerator;
Chris@14: 
Chris@14:     protected function setUp()
Chris@14:     {
Chris@14:         $this->enumerator = new Enumerator;
Chris@14:     }
Chris@14: 
Chris@14:     public function testEnumeratesSingleObject()
Chris@14:     {
Chris@14:         $a = new \stdClass;
Chris@14: 
Chris@14:         $objects = $this->enumerator->enumerate($a);
Chris@14: 
Chris@14:         $this->assertCount(1, $objects);
Chris@14:         $this->assertSame($a, $objects[0]);
Chris@14:     }
Chris@14: 
Chris@14:     public function testEnumeratesArrayWithSingleObject()
Chris@14:     {
Chris@14:         $a = new \stdClass;
Chris@14: 
Chris@14:         $objects = $this->enumerator->enumerate([$a]);
Chris@14: 
Chris@14:         $this->assertCount(1, $objects);
Chris@14:         $this->assertSame($a, $objects[0]);
Chris@14:     }
Chris@14: 
Chris@14:     public function testEnumeratesArrayWithTwoReferencesToTheSameObject()
Chris@14:     {
Chris@14:         $a = new \stdClass;
Chris@14: 
Chris@14:         $objects = $this->enumerator->enumerate([$a, $a]);
Chris@14: 
Chris@14:         $this->assertCount(1, $objects);
Chris@14:         $this->assertSame($a, $objects[0]);
Chris@14:     }
Chris@14: 
Chris@14:     public function testEnumeratesArrayOfObjects()
Chris@14:     {
Chris@14:         $a = new \stdClass;
Chris@14:         $b = new \stdClass;
Chris@14: 
Chris@14:         $objects = $this->enumerator->enumerate([$a, $b, null]);
Chris@14: 
Chris@14:         $this->assertCount(2, $objects);
Chris@14:         $this->assertSame($a, $objects[0]);
Chris@14:         $this->assertSame($b, $objects[1]);
Chris@14:     }
Chris@14: 
Chris@14:     public function testEnumeratesObjectWithAggregatedObject()
Chris@14:     {
Chris@14:         $a = new \stdClass;
Chris@14:         $b = new \stdClass;
Chris@14: 
Chris@14:         $a->b = $b;
Chris@14:         $a->c = null;
Chris@14: 
Chris@14:         $objects = $this->enumerator->enumerate($a);
Chris@14: 
Chris@14:         $this->assertCount(2, $objects);
Chris@14:         $this->assertSame($a, $objects[0]);
Chris@14:         $this->assertSame($b, $objects[1]);
Chris@14:     }
Chris@14: 
Chris@14:     public function testEnumeratesObjectWithAggregatedObjectsInArray()
Chris@14:     {
Chris@14:         $a = new \stdClass;
Chris@14:         $b = new \stdClass;
Chris@14: 
Chris@14:         $a->b = [$b];
Chris@14: 
Chris@14:         $objects = $this->enumerator->enumerate($a);
Chris@14: 
Chris@14:         $this->assertCount(2, $objects);
Chris@14:         $this->assertSame($a, $objects[0]);
Chris@14:         $this->assertSame($b, $objects[1]);
Chris@14:     }
Chris@14: 
Chris@14:     public function testEnumeratesObjectsWithCyclicReferences()
Chris@14:     {
Chris@14:         $a = new \stdClass;
Chris@14:         $b = new \stdClass;
Chris@14: 
Chris@14:         $a->b = $b;
Chris@14:         $b->a = $a;
Chris@14: 
Chris@14:         $objects = $this->enumerator->enumerate([$a, $b]);
Chris@14: 
Chris@14:         $this->assertCount(2, $objects);
Chris@14:         $this->assertSame($a, $objects[0]);
Chris@14:         $this->assertSame($b, $objects[1]);
Chris@14:     }
Chris@14: 
Chris@14:     public function testEnumeratesClassThatThrowsException()
Chris@14:     {
Chris@14:         $thrower = new ExceptionThrower();
Chris@14: 
Chris@14:         $objects = $this->enumerator->enumerate($thrower);
Chris@14: 
Chris@14:         $this->assertSame($thrower, $objects[0]);
Chris@14:     }
Chris@14: 
Chris@14:     public function testExceptionIsRaisedForInvalidArgument()
Chris@14:     {
Chris@14:         $this->expectException(InvalidArgumentException::class);
Chris@14: 
Chris@14:         $this->enumerator->enumerate(null);
Chris@14:     }
Chris@14: 
Chris@14:     public function testExceptionIsRaisedForInvalidArgument2()
Chris@14:     {
Chris@14:         $this->expectException(InvalidArgumentException::class);
Chris@14: 
Chris@14:         $this->enumerator->enumerate([], '');
Chris@14:     }
Chris@14: }