added a whole bunch of tests for enchantment handling

tests/phpunit/item/ItemFactoryTest.php

@@ -0,0 +1,81 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\item;
+
+use PHPUnit\Framework\TestCase;
+use pocketmine\block\BlockFactory;
+
+class ItemFactoryTest extends TestCase{
+
+	public function setUp() : void{
+		BlockFactory::init();
+		ItemFactory::init();
+	}
+
+	/**
+	 * Tests that blocks are considered to be valid registered items
+	 */
+	public function testItemBlockRegistered() : void{
+		for($id = 0; $id < 256; ++$id){
+			self::assertEquals(BlockFactory::isRegistered($id), ItemFactory::isRegistered($id));
+		}
+	}
+
+	public function itemFromStringProvider() : array{
+		return [
+			["dye:4", ItemIds::DYE, 4],
+			["351", ItemIds::DYE, 0],
+			["351:4", ItemIds::DYE, 4],
+			["stone:3", ItemIds::STONE, 3],
+			["minecraft:string", ItemIds::STRING, 0],
+			["diamond_pickaxe", ItemIds::DIAMOND_PICKAXE, 0],
+			["diamond_pickaxe:5", ItemIds::DIAMOND_PICKAXE, 5]
+		];
+	}
+
+	/**
+	 * @dataProvider itemFromStringProvider
+	 * @param string $string
+	 * @param int    $id
+	 * @param int    $meta
+	 */
+	public function testFromStringSingle(string $string, int $id, int $meta) : void{
+		$item = ItemFactory::fromString($string);
+
+		self::assertEquals($id, $item->getId());
+		self::assertEquals($meta, $item->getDamage());
+	}
+
+	/**
+	 * Test that durable items are correctly created by the item factory
+	 */
+	public function testGetDurableItem() : void{
+		self::assertInstanceOf(Sword::class, $i1 = ItemFactory::get(Item::WOODEN_SWORD));
+		/** @var Sword $i1 */
+		self::assertSame(0, $i1->getDamage());
+		self::assertInstanceOf(Sword::class, $i2 = ItemFactory::get(Item::WOODEN_SWORD, 1));
+		/** @var Sword $i2 */
+		self::assertSame(1, $i2->getDamage());
+	}
+}