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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Box packing (3D bin packing, knapsack problem)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package BoxPacker  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author Doug Wright  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace DVDoug\BoxPacker;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use DVDoug\BoxPacker\Test\TestBox;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use PHPUnit\Framework\TestCase;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                class BoxListTest extends TestCase  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                View Code Duplication | 
                    function testCompare()  | 
            
                            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $box1 = new TestBox('Small', 21, 21, 3, 1, 20, 20, 2, 100); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $box2 = new TestBox('Large', 201, 201, 21, 1, 200, 200, 20, 1000); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $box3 = new TestBox('Medium', 101, 101, 11, 5, 100, 100, 10, 500); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list = new BoxList;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box2);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box3);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $sorted = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        while (!$list->isEmpty()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $sorted[] = $list->extract();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self::assertEquals(array($box1, $box3, $box2), $sorted);  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                View Code Duplication | 
                    function testIssue14A()  | 
            
                            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $box1 = new TestBox('Small', 21, 21, 3, 1, 20, 20, 2, 100); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $box2 = new TestBox('Large', 1301, 1301, 1301, 1, 1300, 1300, 1300, 1000); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $box3 = new TestBox('Medium', 101, 101, 11, 5, 100, 100, 10, 500); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list = new BoxList;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box2);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box3);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $sorted = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        while (!$list->isEmpty()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $sorted[] = $list->extract();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self::assertEquals(array($box1, $box3, $box2), $sorted);  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    function testIssue14B()  | 
            
                            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $box1 = new TestBox('Small', 21, 21, 3, 1, 20, 20, 2, 100); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $box2 = new TestBox('Large', 1301, 1301, 1301, 1, 1300, 1300, 1300, 1000); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $box3 = new TestBox('Medium', 101, 101, 11, 5, 100, 100, 10, 500); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list = new BoxList;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box3);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box2);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $sorted = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        while (!$list->isEmpty()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $sorted[] = $list->extract();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self::assertEquals(array($box1, $box3, $box2), $sorted);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list = new BoxList;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box2);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list->insert($box3);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $sorted = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        while (!$list->isEmpty()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $sorted[] = $list->extract();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self::assertEquals(array($box1, $box3, $box2), $sorted);  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.