Index: modules/core/src/test/java/org/apache/ignite/internal/processors/authentication/AuthenticationConfigurationClusterTest.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/authentication/AuthenticationConfigurationClusterTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/authentication/AuthenticationConfigurationClusterTest.java
--- a/modules/core/src/test/java/org/apache/ignite/internal/processors/authentication/AuthenticationConfigurationClusterTest.java	(revision 969744904e44a8264639094b6c086cea20269d16)
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/authentication/AuthenticationConfigurationClusterTest.java	(date 1637572076175)
@@ -52,10 +52,12 @@
 
         cfg.setAuthenticationEnabled(authEnabled);
 
-        cfg.setDataStorageConfiguration(new DataStorageConfiguration()
-            .setDefaultDataRegionConfiguration(new DataRegionConfiguration()
-                .setMaxSize(200L * 1024 * 1024)
-                .setPersistenceEnabled(true)));
+        if (!client) {
+            cfg.setDataStorageConfiguration(new DataStorageConfiguration()
+                .setDefaultDataRegionConfiguration(new DataRegionConfiguration()
+                    .setMaxSize(200L * 1024 * 1024)
+                    .setPersistenceEnabled(true)));
+        }
 
         return cfg;
     }
@@ -211,4 +213,10 @@
             IgniteCheckedException.class,
             "Invalid security configuration: both authentication is enabled and external security plugin is provided.");
     }
+
+    /** */
+    @Test
+    public void testEnabledAuthenticationOnClientNode() throws Exception {
+        startGrid(configuration(0, true, true));
+    }
 }