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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 DVDoug\BoxPacker\Test\TestItem; |
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use PHPUnit\Framework\TestCase; |
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/** |
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* @covers \DVDoug\BoxPacker\PackedBox |
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*/ |
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class PackedBoxTest extends TestCase |
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{ |
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/** |
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* Test various getters work correctly. |
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*/ |
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public function testGetters() |
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{ |
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$box = new TestBox('Box', 370, 375, 60, 140, 364, 374, 40, 3000); |
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$item = new TestItem('Item', 230, 330, 6, 320, true); |
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$packedItemList = new ItemList(); |
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$packedItemList->insert($item); |
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$packedBox = new PackedBox($box, $packedItemList, 134, 44, 34, 2540, 0, 0, 0); |
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self::assertEquals($box, $packedBox->getBox()); |
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self::assertEquals($packedItemList, $packedBox->getItems()); |
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self::assertEquals(460, $packedBox->getWeight()); |
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self::assertEquals(134, $packedBox->getRemainingWidth()); |
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self::assertEquals(44, $packedBox->getRemainingLength()); |
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self::assertEquals(34, $packedBox->getRemainingDepth()); |
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self::assertEquals(2540, $packedBox->getRemainingWeight()); |
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self::assertEquals(5445440, $packedBox->getInnerVolume()); |
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} |
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/** |
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* Test that volume utilisation is calculated correctly. |
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*/ |
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public function testVolumeUtilisation() |
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{ |
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$box = new TestBox('Box', 10, 10, 20, 10, 10, 10, 20, 10); |
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$item = new TestItem('Item', 4, 10, 10, 10, true); |
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$boxItems = new ItemList(); |
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$boxItems->insert($item); |
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$packedBox = new PackedBox($box, $boxItems, 0, 0, 0,0,0, 0, 0); |
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self::assertEquals(20, $packedBox->getVolumeUtilisation()); |
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} |
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/** |
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* Test that caching of weight calculation works correctly. |
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*/ |
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public function testWeightCalcCaching() |
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{ |
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$box = new TestBox('Box', 10, 10, 20, 10, 10, 10, 20, 10); |
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$item = new TestItem('Item', 4, 10, 10, 10, true); |
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$boxItems = new ItemList(); |
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$boxItems->insert($item); |
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$packedBox = new PackedBox($box, $boxItems, 0, 0, 0, 0, 0, 0, 0); |
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self::assertEquals(20, $packedBox->getWeight()); |
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//inspect cache, then poke at the value and see if it's returned correctly |
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$cachedValue = new \ReflectionProperty($packedBox, 'weight'); |
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$cachedValue->setAccessible(true); |
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$cachedValue->getValue($packedBox); |
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self::assertEquals(20, $cachedValue->getValue($packedBox)); |
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$cachedValue->setValue($packedBox, 30); |
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self::assertEquals(30, $cachedValue->getValue($packedBox)); |
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} |
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} |
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dvdoug /
BoxPacker
