Added unit tests for CommandStringHelper

tests/phpunit/command/utils/CommandStringHelperTest.php

@@ -0,0 +1,57 @@
+<?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\command\utils;
+
+use PHPUnit\Framework\TestCase;
+
+class CommandStringHelperTest extends TestCase{
+
+	public function parseQuoteAwareProvider() : \Generator{
+		yield [
+			'give "steve jobs" apple',
+			['give', 'steve jobs', 'apple']
+		];
+		yield [
+			'say \"escaped\"',
+			['say', '"escaped"']
+		];
+		yield [
+			'say This message contains \"escaped quotes\", which are ignored',
+			['say', 'This', 'message', 'contains', '"escaped', 'quotes",', 'which', 'are', 'ignored']
+		];
+		yield [
+			'say dontspliton"half"wayquotes',
+			['say', 'dontspliton"half"wayquotes']
+		];
+	}
+
+	/**
+	 * @dataProvider parseQuoteAwareProvider
+	 */
+	public function testParseQuoteAware(string $commandLine, array $expected) : void{
+		$actual = CommandStringHelper::parseQuoteAware($commandLine);
+
+		self::assertSame($expected, $actual);
+	}
+}