Don't need real LeafReaderContext in test any more

Author: romseygeek

server/src/test/java/org/elasticsearch/search/fetch/subphase/FetchSourcePhaseTests.java

@@ -8,8 +8,6 @@
 
 package org.elasticsearch.search.fetch.subphase;
 
-import org.apache.lucene.index.LeafReaderContext;
-import org.apache.lucene.index.memory.MemoryIndex;
 import org.elasticsearch.common.Strings;
 import org.elasticsearch.common.bytes.BytesReference;
 import org.elasticsearch.common.xcontent.XContentBuilder;
@@ -147,14 +145,10 @@ private HitContext hitExecuteMultiple(XContentBuilder source, boolean fetchSourc
         when(fetchContext.getSearchExecutionContext()).thenReturn(sec);
 
         final SearchHit searchHit = new SearchHit(1, null, nestedIdentity, null, null);
-
-        // We don't need a real index, just a LeafReaderContext which cannot be mocked.
-        MemoryIndex index = new MemoryIndex();
-        LeafReaderContext leafReaderContext = index.createSearcher().getIndexReader().leaves().get(0);
         ValuesLookup valuesLookup = source == null
             ? ValuesLookup.sourceOnly(Collections.emptyMap())
             : ValuesLookup.sourceOnly(BytesReference.bytes(source));
-        HitContext hitContext = new HitContext(searchHit, valuesLookup, leafReaderContext, 1);
+        HitContext hitContext = new HitContext(searchHit, valuesLookup, null, 1);
 
         FetchSourcePhase phase = new FetchSourcePhase();
         FetchSubPhaseProcessor processor = phase.getProcessor(fetchContext);