diff --git a/src/test/java/org/opensearch/plugin/insights/QueryInsightsRestTestCase.java b/src/test/java/org/opensearch/plugin/insights/QueryInsightsRestTestCase.java
index d973b26..2852dec 100644
--- a/src/test/java/org/opensearch/plugin/insights/QueryInsightsRestTestCase.java
+++ b/src/test/java/org/opensearch/plugin/insights/QueryInsightsRestTestCase.java
@@ -194,7 +194,6 @@ protected String defaultTopQueriesSettings() {
             + "}";
     }
 
-
     protected String defaultTopQueryGroupingSettings() {
         return "{\n"
             + "    \"persistent\" : {\n"
@@ -248,38 +247,32 @@ private String searchBody(String queryType) {
         switch (queryType) {
             case "match":
                 // Query shape 1: Match query
-                return "{\n" +
-                    "  \"query\": {\n" +
-                    "    \"match\": {\n" +
-                    "      \"field1\": \"value1\"\n" +
-                    "    }\n" +
-                    "  }\n" +
-                    "}";
+                return "{\n" + "  \"query\": {\n" + "    \"match\": {\n" + "      \"field1\": \"value1\"\n" + "    }\n" + "  }\n" + "}";
 
             case "range":
                 // Query shape 2: Range query
-                return "{\n" +
-                    "  \"query\": {\n" +
-                    "    \"range\": {\n" +
-                    "      \"field2\": {\n" +
-                    "        \"gte\": 10,\n" +
-                    "        \"lte\": 50\n" +
-                    "      }\n" +
-                    "    }\n" +
-                    "  }\n" +
-                    "}";
+                return "{\n"
+                    + "  \"query\": {\n"
+                    + "    \"range\": {\n"
+                    + "      \"field2\": {\n"
+                    + "        \"gte\": 10,\n"
+                    + "        \"lte\": 50\n"
+                    + "      }\n"
+                    + "    }\n"
+                    + "  }\n"
+                    + "}";
 
             case "term":
                 // Query shape 3: Term query
-                return "{\n" +
-                    "  \"query\": {\n" +
-                    "    \"term\": {\n" +
-                    "      \"field3\": {\n" +
-                    "        \"value\": \"exact-value\"\n" +
-                    "      }\n" +
-                    "    }\n" +
-                    "  }\n" +
-                    "}";
+                return "{\n"
+                    + "  \"query\": {\n"
+                    + "    \"term\": {\n"
+                    + "      \"field3\": {\n"
+                    + "        \"value\": \"exact-value\"\n"
+                    + "      }\n"
+                    + "    }\n"
+                    + "  }\n"
+                    + "}";
 
             default:
                 throw new IllegalArgumentException("Unknown query type: " + queryType);
diff --git a/src/test/java/org/opensearch/plugin/insights/core/service/grouper/MinMaxQueryGrouperByNoneIT.java b/src/test/java/org/opensearch/plugin/insights/core/service/grouper/MinMaxQueryGrouperByNoneIT.java
index 6d9ef13..86ae244 100644
--- a/src/test/java/org/opensearch/plugin/insights/core/service/grouper/MinMaxQueryGrouperByNoneIT.java
+++ b/src/test/java/org/opensearch/plugin/insights/core/service/grouper/MinMaxQueryGrouperByNoneIT.java
@@ -7,15 +7,14 @@
  */
 package org.opensearch.plugin.insights.core.service.grouper;
 
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import org.junit.Assert;
 import org.opensearch.client.Request;
 import org.opensearch.client.Response;
 import org.opensearch.plugin.insights.QueryInsightsRestTestCase;
 import org.opensearch.plugin.insights.settings.QueryInsightsSettings;
 
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
-
 /**
  * ITs for Grouping Top Queries by none
  */
@@ -60,16 +59,14 @@ public void testGroupingByNone() throws IOException, InterruptedException {
     }
 
     private String groupByNoneSettings() {
-        return "{\n" +
-            "    \"persistent\" : {\n" +
-            "        \"search.insights.top_queries.latency.enabled\" : \"true\",\n" +
-            "        \"search.insights.top_queries.latency.window_size\" : \"1m\",\n" +
-            "        \"search.insights.top_queries.latency.top_n_size\" : 100,\n" +
-            "        \"search.insights.top_queries.group_by\" : \"none\",\n" +
-            "        \"search.insights.top_queries.max_groups\" : 5\n" +
-            "    }\n" +
-            "}";
+        return "{\n"
+            + "    \"persistent\" : {\n"
+            + "        \"search.insights.top_queries.latency.enabled\" : \"true\",\n"
+            + "        \"search.insights.top_queries.latency.window_size\" : \"1m\",\n"
+            + "        \"search.insights.top_queries.latency.top_n_size\" : 100,\n"
+            + "        \"search.insights.top_queries.group_by\" : \"none\",\n"
+            + "        \"search.insights.top_queries.max_groups\" : 5\n"
+            + "    }\n"
+            + "}";
     }
 }
-
-
diff --git a/src/test/java/org/opensearch/plugin/insights/core/service/grouper/MinMaxQueryGrouperBySimilarityIT.java b/src/test/java/org/opensearch/plugin/insights/core/service/grouper/MinMaxQueryGrouperBySimilarityIT.java
index 2af9ec6..66567b1 100644
--- a/src/test/java/org/opensearch/plugin/insights/core/service/grouper/MinMaxQueryGrouperBySimilarityIT.java
+++ b/src/test/java/org/opensearch/plugin/insights/core/service/grouper/MinMaxQueryGrouperBySimilarityIT.java
@@ -7,6 +7,8 @@
  */
 package org.opensearch.plugin.insights.core.service.grouper;
 
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import org.junit.Assert;
 import org.opensearch.client.Request;
 import org.opensearch.client.Response;
@@ -14,9 +16,6 @@
 import org.opensearch.plugin.insights.QueryInsightsRestTestCase;
 import org.opensearch.plugin.insights.settings.QueryInsightsSettings;
 
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
-
 /**
  * ITs for Grouping Top Queries by similarity
  */
@@ -98,63 +97,40 @@ public void testValidQueryGroupingSettings() throws IOException {
     private String[] invalidQueryGroupingSettings() {
         return new String[] {
             // Invalid max_groups: below minimum (0)
-            "{\n" +
-                "    \"persistent\" : {\n" +
-                "        \"search.insights.top_queries.max_groups\" : 0\n" +
-                "    }\n" +
-                "}",
+            "{\n" + "    \"persistent\" : {\n" + "        \"search.insights.top_queries.max_groups\" : 0\n" + "    }\n" + "}",
 
             // Invalid max_groups: above maximum (10001)
-            "{\n" +
-                "    \"persistent\" : {\n" +
-                "        \"search.insights.top_queries.max_groups\" : 10001\n" +
-                "    }\n" +
-                "}",
+            "{\n" + "    \"persistent\" : {\n" + "        \"search.insights.top_queries.max_groups\" : 10001\n" + "    }\n" + "}",
 
             // Invalid group_by: unsupported value
-            "{\n" +
-                "    \"persistent\" : {\n" +
-                "        \"search.insights.top_queries.group_by\" : \"unsupported_value\"\n" +
-                "    }\n" +
-                "}"
-        };
+            "{\n"
+                + "    \"persistent\" : {\n"
+                + "        \"search.insights.top_queries.group_by\" : \"unsupported_value\"\n"
+                + "    }\n"
+                + "}" };
     }
 
     private String[] validQueryGroupingSettings() {
-        return new String[]{
+        return new String[] {
             // Valid max_groups: minimum value (1)
-            "{\n" +
-                "    \"persistent\" : {\n" +
-                "        \"search.insights.top_queries.max_groups\" : 1\n" +
-                "    }\n" +
-                "}",
+            "{\n" + "    \"persistent\" : {\n" + "        \"search.insights.top_queries.max_groups\" : 1\n" + "    }\n" + "}",
 
             // Valid max_groups: maximum value (10000)
-            "{\n" +
-                "    \"persistent\" : {\n" +
-                "        \"search.insights.top_queries.max_groups\" : 10000\n" +
-                "    }\n" +
-                "}",
+            "{\n" + "    \"persistent\" : {\n" + "        \"search.insights.top_queries.max_groups\" : 10000\n" + "    }\n" + "}",
 
             // Valid group_by: supported value (SIMILARITY)
-            "{\n" +
-                "    \"persistent\" : {\n" +
-                "        \"search.insights.top_queries.group_by\" : \"SIMILARITY\"\n" +
-                "    }\n" +
-                "}"
-        };
+            "{\n" + "    \"persistent\" : {\n" + "        \"search.insights.top_queries.group_by\" : \"SIMILARITY\"\n" + "    }\n" + "}" };
     }
 
     private String groupByNoneSettings() {
-        return "{\n" +
-            "    \"persistent\" : {\n" +
-            "        \"search.insights.top_queries.latency.enabled\" : \"true\",\n" +
-            "        \"search.insights.top_queries.latency.window_size\" : \"1m\",\n" +
-            "        \"search.insights.top_queries.latency.top_n_size\" : 100,\n" +
-            "        \"search.insights.top_queries.group_by\" : \"none\",\n" +
-            "        \"search.insights.top_queries.max_groups\" : 5\n" +
-            "    }\n" +
-            "}";
+        return "{\n"
+            + "    \"persistent\" : {\n"
+            + "        \"search.insights.top_queries.latency.enabled\" : \"true\",\n"
+            + "        \"search.insights.top_queries.latency.window_size\" : \"1m\",\n"
+            + "        \"search.insights.top_queries.latency.top_n_size\" : 100,\n"
+            + "        \"search.insights.top_queries.group_by\" : \"none\",\n"
+            + "        \"search.insights.top_queries.max_groups\" : 5\n"
+            + "    }\n"
+            + "}";
     }
 }
-