Fixed bug on nested and reverse nested aggregations. None of these...

Fixed bug on nested and reverse nested aggregations. None of these aggregations requires the nested aggregations to be added. Test has also been updated. (#173)

src/Aggregation/Bucketing/ReverseNestedAggregation.php

@@ -74,10 +74,6 @@ class ReverseNestedAggregation extends AbstractAggregation
      */
     public function getArray()
     {
-        if (count($this->getAggregations()) == 0) {
-            throw new \LogicException("Reverse Nested aggregation `{$this->getName()}` has no aggregations added");
-        }
-
         $output = new \stdClass();
         if ($this->getPath()) {
             $output = ['path' => $this->getPath()];

tests/Unit/Aggregation/ReverseNestedAggregationTest.php

@@ -17,23 +17,6 @@ use ONGR\ElasticsearchDSL\Aggregation\TermsAggregation;
 
 class ReverseNestedAggregationTest extends \PHPUnit_Framework_TestCase
 {
-    /**
-     * Test for reverse_nested aggregation toArray() method exception.
-     *
-     * @expectedException \LogicException
-     */
-    public function testToArrayException()
-    {
-        $aggregation = new ReverseNestedAggregation('test_agg');
-        $aggregation->setPath('test_path');
-
-        $expectedResult = [
-            'reverse_nested' => ['path' => 'test_path'],
-        ];
-
-        $this->assertEquals($expectedResult, $aggregation->toArray());
-    }
-
     /**
      * Test for reverse_nested aggregation toArray() method exception.
      */