add test for Logger

tests/LoggerTest.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Nelmio\SolariumBundle\Tests;
+
+use Nelmio\SolariumBundle\Logger;
+use PHPUnit\Framework\TestCase;
+use Psr\Log\NullLogger;
+use Solarium\Core\Client\Endpoint;
+use Solarium\Core\Client\Request;
+use Symfony\Component\HttpFoundation\Request as SymfonyRequest;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Stopwatch\Stopwatch;
+
+class LoggerTest extends TestCase
+{
+    public function testLog()
+    {
+        $logger = new Logger();
+        $logger->setLogger(new NullLogger());
+        $logger->setStopwatch(new Stopwatch());
+
+        $logger->log(new Request(), null, $this->createMock(Endpoint::class), 0);
+        $logger->collect(new SymfonyRequest(), new Response());
+
+        $this->assertSame(1, $logger->getQueryCount());
+        $this->assertCount(1, $logger->getQueries());
+    }
+}