- added functional test for getVersion

- updated ChangeLog

Author: oleg-andreyev

CHANGELOG.md

@@ -11,6 +11,7 @@ All notable changes to this project will be documented in this file based on the
 ### Added
 - Elastica\QueryBuilder\DSL\Query::geo_distance
 - Elastica\Aggregation\GeoCentroid [#1150](https://github.com/ruflin/Elastica/pull/1150)
+- Elastica\Client::getVersion [#1152](https://github.com/ruflin/Elastica/pull/1152)
 
 ### Improvements
 - Set PHP 7.0 as default development version

test/lib/Elastica/Test/ClientTest.php

@@ -23,6 +23,16 @@ public function testConstruct()
         $this->assertCount(1, $client->getConnections());
     }
 
+    /**
+     * @group functional
+     */
+    public function testGetVersion()
+    {
+        $client = $this->_getClient();
+        $this->assertNotEmpty($version = $client->getVersion());
+        $this->assertSame($version, $client->getVersion());
+    }
+
     /**
      * @group functional
      */