Add test for visualization feature.

module/VuFind/tests/integration-tests/src/VuFindTest/Mink/VisualizationTest.php

+<?php
+/**
+ * Mink test class for visualization view.
+ *
+ * PHP version 5
+ *
+ * Copyright (C) Villanova University 2017.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * @category VuFind
+ * @package  Tests
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org Main Page
+ */
+namespace VuFindTest\Mink;
+use Behat\Mink\Element\Element;
+
+/**
+ * Mink test class for visualization view.
+ *
+ * @category VuFind
+ * @package  Tests
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org Main Page
+ */
+class VisualizationTest extends \VuFindTest\Unit\MinkTestCase
+{
+    /**
+     * Test that combined results work in mixed AJAX/non-AJAX mode.
+     *
+     * @return void
+     */
+    public function testVisualization()
+    {
+        $this->changeConfigs(
+            [
+                'searches' => [
+                    'General' => [
+                        'default_top_recommend' => ['VisualFacets'],
+                    ],
+                    'Views' => ['list' => 'List', 'visual' => 'Visual'],
+                ]
+            ]
+        );
+        $session = $this->getMinkSession();
+        $session->visit(
+            $this->getVuFindUrl()
+            . '/Search/Results?filter[]=building%3A"journals.mrc"&view=visual'
+        );
+        $page = $session->getPage();
+        $this->snooze();
+        $text = $this->findCss($page, '#visualResults')->getText();
+        // Confirm that some content has been dynamically loaded into the
+        // visualization area:
+        $this->assertContains('A - General Works', $text);
+    }
+}