feat: update test checkout test

Signed-off-by: Otavio Santana <otaviopolianasantana@gmail.com>

jnosql-static-metamodel/jnosql-metamodel-sample/src/test/java/org/eclipse/jnsoql/entities/CheckoutTest.java

@@ -1,4 +1,36 @@
+/*
+ *  Copyright (c) 2024 Otávio Santana and others
+ *   All rights reserved. This program and the accompanying materials
+ *   are made available under the terms of the Eclipse Public License v1.0
+ *   and Apache License v2.0 which accompanies this distribution.
+ *   The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
+ *   and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
+ *
+ *   You may elect to redistribute this code under either of these licenses.
+ *
+ *   Contributors:
+ *
+ *   Otavio Santana
+ */
+package org.eclipse.jnsoql.entities;
+
+import org.assertj.core.api.SoftAssertions;
+import org.junit.jupiter.api.Test;
+
 import static org.junit.jupiter.api.Assertions.*;
+
 class CheckoutTest {
-
+
+
+    @Test
+    void shouldGenerateStaticMetamodel() {
+
+        SoftAssertions.assertSoftly(softly -> {
+            softly.assertThat(_Checkout.id).isNotNull();
+            softly.assertThat(_Checkout.products).isNotNull();
+            softly.assertThat(_Checkout.products_name).isNotNull();
+            softly.assertThat(_Checkout.products_name).isNotNull();
+        });
+    }
+
 }