Add AsMonologProcessor attribute (#1637)

tests/Monolog/Attribute/AsMonologProcessorTest.php

@@ -0,0 +1,33 @@
+<?php declare(strict_types=1);
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Attribute;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @requires PHP 8.0
+ */
+final class AsMonologProcessorTest extends TestCase
+{
+    public function test(): void
+    {
+        $asMonologProcessor = new AsMonologProcessor('channel', 'handler', 'method');
+        $this->assertSame('channel', $asMonologProcessor->channel);
+        $this->assertSame('handler', $asMonologProcessor->handler);
+        $this->assertSame('method', $asMonologProcessor->method);
+
+        $asMonologProcessor = new AsMonologProcessor(null, null, null);
+        $this->assertNull($asMonologProcessor->channel);
+        $this->assertNull($asMonologProcessor->handler);
+        $this->assertNull($asMonologProcessor->method);
+    }
+}