Add Composer autoloading functions and PHPStan for testing

vendor/symfony/console/Tests/Descriptor/JsonDescriptorTest.php

@@ -0,0 +1,35 @@
+<?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\Console\Tests\Descriptor;
+
+use Symfony\Component\Console\Descriptor\JsonDescriptor;
+use Symfony\Component\Console\Output\BufferedOutput;
+
+class JsonDescriptorTest extends AbstractDescriptorTest
+{
+    protected function getDescriptor()
+    {
+        return new JsonDescriptor();
+    }
+
+    protected function getFormat()
+    {
+        return 'json';
+    }
+
+    protected function assertDescription($expectedDescription, $describedObject, array $options = [])
+    {
+        $output = new BufferedOutput(BufferedOutput::VERBOSITY_NORMAL, true);
+        $this->getDescriptor()->describe($output, $describedObject, $options + ['raw_output' => true]);
+        $this->assertEquals(json_decode(trim($expectedDescription), true), json_decode(trim(str_replace(PHP_EOL, "\n", $output->fetch())), true));
+    }
+}