diff --git a/modules/reindex/src/test/java/org/opensearch/index/reindex/ReindexRenamedSettingTests.java b/modules/reindex/src/test/java/org/opensearch/index/reindex/ReindexRenamedSettingTests.java
index 8ff84223d371e..00747d85221c6 100644
--- a/modules/reindex/src/test/java/org/opensearch/index/reindex/ReindexRenamedSettingTests.java
+++ b/modules/reindex/src/test/java/org/opensearch/index/reindex/ReindexRenamedSettingTests.java
@@ -15,6 +15,9 @@
 import java.util.Arrays;
 import java.util.List;
 
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.hasItems;
+
 /**
  * A unit test to validate the former name of the setting 'reindex.remote.allowlist' still take effect,
  * after it is deprecated, so that the backwards compatibility is maintained.
@@ -28,11 +31,10 @@ public class ReindexRenamedSettingTests extends OpenSearchTestCase {
      */
     public void testReindexSettingsExist() {
         List<Setting<?>> settings = plugin.getSettings();
-        assertTrue(
+        assertThat(
             "Both 'reindex.remote.allowlist' and its predecessor should be supported settings of Reindex plugin",
-            settings.containsAll(
-                Arrays.asList(TransportReindexAction.REMOTE_CLUSTER_WHITELIST, TransportReindexAction.REMOTE_CLUSTER_ALLOWLIST)
-            )
+            settings,
+            hasItems(TransportReindexAction.REMOTE_CLUSTER_WHITELIST, TransportReindexAction.REMOTE_CLUSTER_ALLOWLIST)
         );
     }
 
@@ -40,9 +42,9 @@ public void testReindexSettingsExist() {
      * Validate the default value of the both settings is the same.
      */
     public void testSettingFallback() {
-        assertEquals(
+        assertThat(
             TransportReindexAction.REMOTE_CLUSTER_ALLOWLIST.get(Settings.EMPTY),
-            TransportReindexAction.REMOTE_CLUSTER_WHITELIST.get(Settings.EMPTY)
+            equalTo(TransportReindexAction.REMOTE_CLUSTER_WHITELIST.get(Settings.EMPTY))
         );
     }
 
@@ -51,10 +53,10 @@ public void testSettingFallback() {
      */
     public void testSettingGetValue() {
         Settings settings = Settings.builder().put("reindex.remote.allowlist", "127.0.0.1:*").build();
-        assertEquals(TransportReindexAction.REMOTE_CLUSTER_ALLOWLIST.get(settings), Arrays.asList("127.0.0.1:*"));
-        assertEquals(
+        assertThat(TransportReindexAction.REMOTE_CLUSTER_ALLOWLIST.get(settings), equalTo(Arrays.asList("127.0.0.1:*")));
+        assertThat(
             TransportReindexAction.REMOTE_CLUSTER_WHITELIST.get(settings),
-            TransportReindexAction.REMOTE_CLUSTER_WHITELIST.getDefault(Settings.EMPTY)
+            equalTo(TransportReindexAction.REMOTE_CLUSTER_WHITELIST.getDefault(Settings.EMPTY))
         );
     }
 
@@ -63,7 +65,7 @@ public void testSettingGetValue() {
      */
     public void testSettingGetValueWithFallback() {
         Settings settings = Settings.builder().put("reindex.remote.whitelist", "127.0.0.1:*").build();
-        assertEquals(TransportReindexAction.REMOTE_CLUSTER_ALLOWLIST.get(settings), Arrays.asList("127.0.0.1:*"));
+        assertThat(TransportReindexAction.REMOTE_CLUSTER_ALLOWLIST.get(settings), equalTo(Arrays.asList("127.0.0.1:*")));
         assertSettingDeprecationsAndWarnings(new Setting<?>[] { TransportReindexAction.REMOTE_CLUSTER_WHITELIST });
     }
 
@@ -75,8 +77,8 @@ public void testSettingGetValueWhenBothAreConfigured() {
             .put("reindex.remote.allowlist", "127.0.0.1:*")
             .put("reindex.remote.whitelist", "[::1]:*, 127.0.0.1:*")
             .build();
-        assertEquals(TransportReindexAction.REMOTE_CLUSTER_ALLOWLIST.get(settings), Arrays.asList("127.0.0.1:*"));
-        assertEquals(TransportReindexAction.REMOTE_CLUSTER_WHITELIST.get(settings), Arrays.asList("[::1]:*", "127.0.0.1:*"));
+        assertThat(TransportReindexAction.REMOTE_CLUSTER_ALLOWLIST.get(settings), equalTo(Arrays.asList("127.0.0.1:*")));
+        assertThat(TransportReindexAction.REMOTE_CLUSTER_WHITELIST.get(settings), equalTo(Arrays.asList("[::1]:*", "127.0.0.1:*")));
         assertSettingDeprecationsAndWarnings(new Setting<?>[] { TransportReindexAction.REMOTE_CLUSTER_WHITELIST });
     }