ATLAS-1436: test fix to address NPE

repository/src/test/java/org/apache/atlas/services/MetricsServiceTest.java

+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.apache.atlas.services;
 
 import org.apache.atlas.model.metrics.AtlasMetrics;
@@ -49,6 +66,17 @@ public class MetricsServiceTest {
         mockMapList.add(cMockMap);
 
         when(mockConfig.getInt(anyString(), anyInt())).thenReturn(5);
+        when(mockConfig.getString(anyString(), anyString()))
+                // we have seven count queries so stubbing 7 counts
+                .thenReturn("dummyTestQuery.count()")
+                .thenReturn("dummyTestQuery.count()")
+                .thenReturn("dummyTestQuery.count()")
+                .thenReturn("dummyTestQuery.count()")
+                .thenReturn("dummyTestQuery.count()")
+                .thenReturn("dummyTestQuery.count()")
+                .thenReturn("dummyTestQuery.count()")
+                // The last query is a map
+                .thenReturn("dummyTestQuery");
         assertEquals(mockConfig.getInt("test", 1), 5);
         when(mockTypeRegistry.getAllEntityDefNames()).thenReturn(Arrays.asList("a", "b", "c"));
         setupMockGraph();