Mock SelectResults.iterator().

Change access modifier on GemFireMockObjectsSupport.mockSelectResults() to private.

spring-data-geode-test/src/main/java/org/springframework/data/gemfire/tests/mock/GemFireMockObjectsSupport.java

@@ -2056,7 +2056,7 @@ public abstract class GemFireMockObjectsSupport extends MockObjectsSupport {
 		return mockQueryStatistics;
 	}
 
-	public static <T> SelectResults<T> mockSelectResults() {
+	private static <T> SelectResults<T> mockSelectResults() {
 
 		ObjectType mockObjectType = mock(ObjectType.class, withSettings().lenient());
 
@@ -2078,6 +2078,7 @@ public abstract class GemFireMockObjectsSupport extends MockObjectsSupport {
 		doReturn(Collections.emptySet()).when(mockSelectResults).asSet();
 		doReturn(mockCollectionType).when(mockSelectResults).getCollectionType();
 		doReturn(false).when(mockSelectResults).isModifiable();
+		doReturn(Collections.emptyIterator()).when(mockSelectResults).iterator();
 		doReturn(0).when(mockSelectResults).occurrences(any());
 		doNothing().when(mockSelectResults).setElementType(any(ObjectType.class));
 

spring-data-geode-test/src/test/java/org/springframework/data/gemfire/tests/MockCacheQueryServiceInteractionsUnitTests.java

@@ -17,6 +17,8 @@ package org.springframework.data.gemfire.tests;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
+import java.util.Iterator;
+
 import org.junit.Test;
 
 import org.apache.geode.cache.GemFireCache;
@@ -68,6 +70,11 @@ public class MockCacheQueryServiceInteractionsUnitTests {
 		assertThat(objectType.isMapType()).isFalse();
 		assertThat(objectType.isStructType()).isFalse();
 		assertThat(objectType.resolveClass()).isEqualTo(Object.class);
+
+		Iterator<?> iterator = selectResults.iterator();
+
+		assertThat(iterator).isNotNull();
+		assertThat(iterator.hasNext()).isFalse();
 	}
 
 	@Test