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<?php |
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/** |
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* Box packing (3D bin packing, knapsack problem). |
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* |
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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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/** |
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* @covers \DVDoug\BoxPacker\BoxList |
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*/ |
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class BoxListTest extends TestCase |
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{ |
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/** |
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* Test that sorting of boxes with different dimensions works as expected i.e. |
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* - Largest (by volume) first. |
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*/ |
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public function testSorting() |
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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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$sorted = iterator_to_array($list, false); |
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self::assertEquals([$box1, $box3, $box2], $sorted); |
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} |
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/** |
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* Test that items with a volume greater than 2^31-1 (max signed integer) are sorted correctly. |
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*/ |
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public function testIssue30A() |
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{ |
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$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 = iterator_to_array($list, false); |
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self::assertEquals([$box1, $box3, $box2], $sorted); |
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} |
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/** |
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* Test that items with a volume greater than 2^31-1 (max signed integer) are sorted correctly. |
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*/ |
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public function testIssue30B() |
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{ |
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$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 = iterator_to_array($list, false); |
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self::assertEquals([$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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$sorted = iterator_to_array($list, false); |
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self::assertEquals([$box1, $box3, $box2], $sorted); |
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} |
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} |
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dvdoug /
BoxPacker
