Added new benchmark to test archive querying w/o launching the archiving process.

tests/PHPUnit/Benchmarks/ArchiveQueryBenchmark.php

+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ */
+require_once PIWIK_INCLUDE_PATH . '/tests/PHPUnit/BenchmarkTestCase.php';
+
+/**
+ * Runs the archiving process.
+ */
+class ArchiveQueryBenchmark extends BenchmarkTestCase
+{
+    private $archivingLaunched = false;
+    
+    public function setUp()
+    {
+        $archivingTables = Piwik::getTablesArchivesInstalled();
+        if (empty($archivingTables)) {
+            $this->archivingLaunched = true;
+            $this->launchArchiving();
+        }
+    }
+
+    /**
+     * @group        Benchmarks
+     * @group        ArchivingProcess
+     */
+    public function testArchivingProcess()
+    {
+        echo "NOTE: Had to archive tables, memory results will not be accurate. Run again for better results.";
+        
+        Piwik_ArchiveProcessing::$forceDisableArchiving = true;
+        $this->launchArchiving();
+    }
+    
+    private function launchArchiving()
+    {
+        Piwik_VisitsSummary_API::getInstance()->get(
+            self::$fixture->idSite, self::$fixture->period, self::$fixture->date);
+    }
+}