Major refactoring to follow the Logbook model

tests/Monolog/Formatter/JsonFormatterTest.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * 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\Formatter;
+
+use Monolog\Logger;
+
+class JsonFormatterTest extends \PHPUnit_Framework_TestCase
+{
+    public function testFormat()
+    {
+        $formatter = new JsonFormatter();
+        $message = $formatter->format(array(
+            'level_name' => 'WARNING',
+            'channel' => 'log',
+            'message' => array('foo'),
+            'datetime' => new \DateTime,
+            'extra' => array(),
+        ));
+        $this->assertEquals(json_encode(array('foo')), $message['message']);
+    }
+}