* Add unittest for generate hostgroup configuration for Centreon Engine

modules/CentreonEngineModule/tests/data/configfiles/hostgroup1.cfg

+###################################################################
+#                                                                 #
+#                     Generated by Centreon 3                     #
+#                                                                 #
+#      Developped by : Julien Mathis and Romain Le Merlus         #
+#                                                                 #
+#                        www.centreon.com                         #
+###################################################################
+#                                                                 #
+#         By API                                                  #
+#                                                                 #
+###################################################################
+
+define hostgroup{
+	hostgroup_name	Hostgroup 1
+	alias	hostgroup1
+}
+

modules/CentreonEngineModule/tests/data/json/centreon.json

@@ -7,5 +7,6 @@
   "cfg_contacts",
   "cfg_contactgroups",
   "cfg_commands",
-  "cfg_connectors"
+  "cfg_connectors",
+  "cfg_hostgroups"
 ]

modules/CentreonEngineModule/tests/data/json/centreon/cfg_hostgroups.json

+[
+  {
+    "hg_id": 1,
+    "hg_name": "Hostgroup 1",
+    "hg_alias": "hostgroup1",
+    "hg_notes_url": "http://wiki/hg1",
+    "organization_id": 1
+  }
+]

modules/CentreonEngineModule/tests/repositories/HostgroupRepositoryTest.php

+<?php
+/*
+ * Copyright 2005-2014 MERETHIS
+ * Centreon is developped by : Julien Mathis and Romain Le Merlus under
+ * GPL Licence 2.0.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation ; either version 2 of the License.
+ *
+ * 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, see <http://www.gnu.org/licenses>.
+ *
+ * Linking this program statically or dynamically with other modules is making a
+ * combined work based on this program. Thus, the terms and conditions of the GNU
+ * General Public License cover the whole combination.
+ *
+ * As a special exception, the copyright holders of this program give MERETHIS
+ * permission to link this program with independent modules to produce an executable,
+ * regardless of the license terms of these independent modules, and to copy and
+ * distribute the resulting executable under terms of MERETHIS choice, provided that
+ * MERETHIS also meet, for each linked independent module, the terms  and conditions
+ * of the license of that module. An independent module is a module which is not
+ * derived from this program. If you modify this program, you may extend this
+ * exception to your version of the program, but you are not obliged to do so. If you
+ * do not wish to do so, delete this exception statement from your version.
+ *
+ * For more information : contact@centreon.com
+ */
+
+
+namespace Test\CentreonEngine\Repository;
+
+use \Test\Centreon\DbTestCase;
+use \Centreon\Internal\Di;
+use \Centreon\Internal\Utils\Filesystem\Directory;
+use \CentreonEngine\Repository\HostgroupRepository;
+
+class HostgroupRepositoryTest extends DbTestCase
+{
+    protected $dataPath = '/modules/CentreonEngineModule/tests/data/json/';
+    protected $tmpDir;
+
+    public function setUp()
+    {
+        parent::setUp();
+        $this->tmpDir = Directory::temporary('ut_', true);
+    }
+
+    public function tearDown()
+    {
+        if ($this->tmpDir != '' && is_dir($this->tmpDir)) {
+            Directory::delete($this->tmpDir, true);
+        }
+        parent::tearDown();
+    }
+
+    public function testGenerate()
+    {
+        $fileList = array();
+        $pollerId = 1;
+        HostgroupRepository::generate($fileList, $pollerId, $this->tmpDir . '/', 'hostgroups.cfg');
+        $this->assertEquals(
+            array('cfg_dir' => array(
+                $this->tmpDir . '/1/'
+            )), $fileList
+        );
+        $content = file_get_contents($this->tmpDir . '/1/hostgroups.cfg');
+        /* Remove line with the generate date */
+        $lines = split("\n", $content);
+        $lines = preg_grep('/^#\s+Last.*#$/', $lines, PREG_GREP_INVERT);
+        $content = join("\n", $lines);
+        $resultContent = file_get_contents(dirname(__DIR__) . '/data/configfiles/hostgroup1.cfg');
+        $this->assertEquals($resultContent, $content);
+    }
+}