fix unit tests

Author: martijnvg

test/framework/src/main/java/org/elasticsearch/index/mapper/FieldTypeTestCase.java

@@ -16,6 +16,7 @@
 import org.apache.lucene.index.VectorEncoding;
 import org.apache.lucene.index.VectorSimilarityFunction;
 import org.apache.lucene.search.Query;
+import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.index.IndexVersion;
 import org.elasticsearch.index.query.SearchExecutionContext;
 import org.elasticsearch.search.lookup.FieldLookup;
@@ -24,6 +25,7 @@
 import org.elasticsearch.search.lookup.SearchLookup;
 import org.elasticsearch.search.lookup.Source;
 import org.elasticsearch.test.ESTestCase;
+import org.elasticsearch.test.IndexSettingsModule;
 import org.elasticsearch.xcontent.XContentType;
 
 import java.io.IOException;
@@ -63,6 +65,7 @@ public static List<?> fetchSourceValue(MappedFieldType fieldType, Object sourceV
     public static List<?> fetchSourceValue(MappedFieldType fieldType, Object sourceValue, String format) throws IOException {
         String field = fieldType.name();
         SearchExecutionContext searchExecutionContext = mock(SearchExecutionContext.class);
+        when(searchExecutionContext.getIndexSettings()).thenReturn(IndexSettingsModule.newIndexSettings("test", Settings.EMPTY));
         when(searchExecutionContext.isSourceEnabled()).thenReturn(true);
         when(searchExecutionContext.sourcePath(field)).thenReturn(Set.of(field));