Fixed twitter link

vendor/symfony/yaml/Tests/YamlTest.php

@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Yaml\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Yaml\Yaml;
+
+class YamlTest extends TestCase
+{
+    public function testParseAndDump()
+    {
+        $data = ['lorem' => 'ipsum', 'dolor' => 'sit'];
+        $yml = Yaml::dump($data);
+        $parsed = Yaml::parse($yml);
+        $this->assertEquals($data, $parsed);
+    }
+
+    public function testZeroIndentationThrowsException()
+    {
+        $this->expectException('InvalidArgumentException');
+        $this->expectExceptionMessage('The indentation must be greater than zero');
+        Yaml::dump(['lorem' => 'ipsum', 'dolor' => 'sit'], 2, 0);
+    }
+
+    public function testNegativeIndentationThrowsException()
+    {
+        $this->expectException('InvalidArgumentException');
+        $this->expectExceptionMessage('The indentation must be greater than zero');
+        Yaml::dump(['lorem' => 'ipsum', 'dolor' => 'sit'], 2, -4);
+    }
+}