| 1 |  |  | <?php | 
                            
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                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace TestsDb\AnyDataset; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use ByJG\AnyDataset\Dataset\IteratorFilter; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use ByJG\AnyDataset\Enum\Relation; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use ByJG\AnyDataset\Factory; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use ByJG\AnyDataset\NoSqlDocument; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use ByJG\AnyDataset\Store\MongoDbDriver; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | // backward compatibility | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | if (!class_exists('\PHPUnit\Framework\TestCase')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |     class_alias('\PHPUnit_Framework_TestCase', '\PHPUnit\Framework\TestCase'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | class MongoDbDriverTest extends \PHPUnit\Framework\TestCase | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |      * @var MongoDbDriver | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     protected $dbDriver; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |     const TEST_COLLECTION = 'collectionTest'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     public function setUp() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |         $this->dbDriver = Factory::getNoSqlInstance('mongodb://mongodb-container/test'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |         $this->dbDriver->save( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |             new NoSqlDocument( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |                 null, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |                 self::TEST_COLLECTION, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |                 ['name' => 'Hilux', 'brand' => 'Toyota', 'price' => 120000] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |             ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |         $this->dbDriver->save( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |             new NoSqlDocument( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |                 null, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |                 self::TEST_COLLECTION, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |                 ['name' => 'A3', 'brand' => 'Audi', 'price' => 90000] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |             ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |         $this->dbDriver->save( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |             new NoSqlDocument( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |                 null, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |                 self::TEST_COLLECTION, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |                 ['name' => 'Fox', 'brand' => 'Volkswagen', 'price' => 40000] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |             ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |         $this->dbDriver->save( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |             new NoSqlDocument( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |                 null, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |                 self::TEST_COLLECTION, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |                 ['name' => 'Corolla', 'brand' => 'Toyota', 'price' => 80000] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |             ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |         $this->dbDriver->save( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |             new NoSqlDocument( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |                 null, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |                 self::TEST_COLLECTION, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |                 ['name' => 'Cobalt', 'brand' => 'Chevrolet', 'price' => 60000] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |             ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |         $this->dbDriver->save( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |             new NoSqlDocument( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |                 null, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |                 self::TEST_COLLECTION, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |                 ['name' => 'Uno', 'brand' => 'Fiat', 'price' =>35000] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |             ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 72 |  |  |      | 
            
                                                                        
                            
            
                                    
            
            
                | 73 |  |  |     public function tearDown() | 
            
                                                                        
                            
            
                                    
            
            
                | 74 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 75 |  |  |         $this->dbDriver->deleteDocuments(new IteratorFilter(), self::TEST_COLLECTION); | 
            
                                                                        
                            
            
                                    
            
            
                | 76 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |     public function testSaveDocument() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |         // Get the Object to test | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |         $filter = new IteratorFilter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |         $filter->addRelation('name', Relation::EQUAL, 'Hilux'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |         $document = $this->dbDriver->getDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         // Check if get ONe | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |         $this->assertEquals(1, count($document)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |         // Check if the default fields are here | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |         $data = $document[0]->getDocument(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |         $this->assertNotEmpty($data['_id']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |         $this->assertNotEmpty($data['created']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |         $this->assertNotEmpty($data['updated']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |         $this->assertEquals($data['created']->toDatetime(), $data['updated']->toDatetime()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |         unset($data['_id']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |         unset($data['created']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |         unset($data['updated']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |         // Check if the context is the expected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |         $this->assertEquals( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |             ['name' => 'Hilux', 'brand' => 'Toyota', 'price' => 120000], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |             $data | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |         // Create a new document with a partial field to update | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |         $documentToUpdate = new NoSqlDocument( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |             $document[0]->getIdDocument(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |             self::TEST_COLLECTION, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |             [ 'price' => 150000 ] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         sleep(1); // Just to force a new Update DateTime | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |         $documentSaved = $this->dbDriver->save($documentToUpdate); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |         // Get the saved document | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |         $documentFromDb = $this->dbDriver->getDocumentById($document[0]->getIdDocument(), self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |         // Check if the document have the same ID (Update) and Have the updated data | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |         $data = $documentFromDb->getDocument(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |         $this->assertEquals($documentSaved->getIdDocument(), $document[0]->getIdDocument()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |         $this->assertEquals($data['_id'], $document[0]->getIdDocument()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |         $this->assertNotEmpty($data['created']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |         $this->assertNotEmpty($data['updated']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |         $this->assertNotEquals($data['created']->toDatetime(), $data['updated']->toDatetime()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |         unset($data['_id']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |         unset($data['created']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |         unset($data['updated']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |         $this->assertEquals( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |             ['name' => 'Hilux', 'brand' => 'Toyota', 'price' => 150000], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |             $data | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |     public function testDelete() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |         // Get the Object to test | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |         $filter = new IteratorFilter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |         $filter->addRelation('name', Relation::EQUAL, 'Uno'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |         $document = $this->dbDriver->getDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |         $this->assertEquals(1, count($document)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |         // Delete | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |         $this->dbDriver->deleteDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |         // Check if object does not exists | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |         $document = $this->dbDriver->getDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |         $this->assertEmpty($document); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |     public function testGetDocuments() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |         $filter = new IteratorFilter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |         $filter->addRelation('price', Relation::LESS_OR_EQUAL_THAN, 40000); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |         $documents = $this->dbDriver->getDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |         $this->assertEquals(2, count($documents)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |         $this->assertEquals('Fox', $documents[0]->getDocument()['name']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |         $this->assertEquals('Volkswagen', $documents[0]->getDocument()['brand']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |         $this->assertEquals('40000', $documents[0]->getDocument()['price']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |         $this->assertEquals('Uno', $documents[1]->getDocument()['name']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |         $this->assertEquals('Fiat', $documents[1]->getDocument()['brand']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |         $this->assertEquals('35000', $documents[1]->getDocument()['price']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |         $filter = new IteratorFilter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |         $filter->addRelation('price', Relation::LESS_THAN, 40000); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |         $documents = $this->dbDriver->getDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |         $this->assertEquals(1, count($documents)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |         $this->assertEquals('Uno', $documents[0]->getDocument()['name']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |         $this->assertEquals('Fiat', $documents[0]->getDocument()['brand']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |         $this->assertEquals('35000', $documents[0]->getDocument()['price']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |         $filter = new IteratorFilter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |         $filter->addRelation('price', Relation::GREATER_OR_EQUAL_THAN, 90000); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |         $documents = $this->dbDriver->getDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |         $this->assertEquals(2, count($documents)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |         $this->assertEquals('Hilux', $documents[0]->getDocument()['name']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |         $this->assertEquals('Toyota', $documents[0]->getDocument()['brand']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |         $this->assertEquals('120000', $documents[0]->getDocument()['price']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |         $this->assertEquals('A3', $documents[1]->getDocument()['name']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |         $this->assertEquals('Audi', $documents[1]->getDocument()['brand']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |         $this->assertEquals('90000', $documents[1]->getDocument()['price']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |         $filter = new IteratorFilter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |         $filter->addRelation('price', Relation::GREATER_THAN, 90000); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |         $documents = $this->dbDriver->getDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |         $this->assertEquals(1, count($documents)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |         $this->assertEquals('Hilux', $documents[0]->getDocument()['name']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |         $this->assertEquals('Toyota', $documents[0]->getDocument()['brand']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |         $this->assertEquals('120000', $documents[0]->getDocument()['price']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |         $filter = new IteratorFilter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |         $filter->addRelation('name', Relation::STARTS_WITH, 'Co'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |         $documents = $this->dbDriver->getDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |         $this->assertEquals(2, count($documents)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |         $this->assertEquals('Corolla', $documents[0]->getDocument()['name']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |         $this->assertEquals('Toyota', $documents[0]->getDocument()['brand']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |         $this->assertEquals('80000', $documents[0]->getDocument()['price']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |         $this->assertEquals('Cobalt', $documents[1]->getDocument()['name']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |         $this->assertEquals('Chevrolet', $documents[1]->getDocument()['brand']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |         $this->assertEquals('60000', $documents[1]->getDocument()['price']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |         $filter = new IteratorFilter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |         $filter->addRelation('name', Relation::CONTAINS, 'oba'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |         $documents = $this->dbDriver->getDocuments($filter, self::TEST_COLLECTION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |         $this->assertEquals(1, count($documents)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |         $this->assertEquals('Cobalt', $documents[0]->getDocument()['name']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |         $this->assertEquals('Chevrolet', $documents[0]->getDocument()['brand']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |         $this->assertEquals('60000', $documents[0]->getDocument()['price']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 207 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 208 |  |  |  | 
            
                        
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.