add more ensureGreen to aggs tests

src/test/java/org/elasticsearch/search/aggregations/bucket/FilterTests.java

@@ -82,6 +82,7 @@ public class FilterTests extends ElasticsearchIntegrationTest {
                     .endObject()));
         }
         indexRandom(true, builders.toArray(new IndexRequestBuilder[builders.size()]));
+        ensureGreen();
     }
 
     @Test

src/test/java/org/elasticsearch/search/aggregations/metrics/ValueCountTests.java

@@ -61,6 +61,7 @@ public class ValueCountTests extends ElasticsearchIntegrationTest {
         }
         client().admin().indices().prepareFlush().execute().actionGet();
         client().admin().indices().prepareRefresh().execute().actionGet();
+        ensureGreen();
     }
 
     @Test