diff --git a/core/src/test/java/org/opensearch/sql/data/model/ExprArrayValueTest.java b/core/src/test/java/org/opensearch/sql/data/model/ExprArrayValueTest.java
index dbc75c4b77..f5d53be790 100644
--- a/core/src/test/java/org/opensearch/sql/data/model/ExprArrayValueTest.java
+++ b/core/src/test/java/org/opensearch/sql/data/model/ExprArrayValueTest.java
@@ -3,6 +3,7 @@
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.lessThan;
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Arrays;
@@ -12,10 +13,14 @@
 import org.opensearch.sql.data.type.ExprCoreType;
 
 public class ExprArrayValueTest {
+  @Test
+  public void testIsArrayFalse() {
+    assertFalse(new ExprStringValue("test").isArray());
+  }
   @Test
   public void testIsArray() {
     ExprArrayValue exprArrayValue = new ExprArrayValue(Arrays.asList(new ExprStringValue("test")));
-    assertTrue(exprArrayValue.isArray());
+    assertFalse(exprArrayValue.isArray());
   }
 
   @Test