HHH-18958 Test case - named query with resultClass annotation

Author: cigaly

tooling/metamodel-generator/src/test/java/org/hibernate/processor/test/resultclass/NameValue.java

@@ -0,0 +1,9 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright Red Hat Inc. and Hibernate Authors
+ */
+package org.hibernate.processor.test.resultclass;
+
+public record NameValue(String name, Integer value) {
+
+}

tooling/metamodel-generator/src/test/java/org/hibernate/processor/test/resultclass/Post.java

@@ -0,0 +1,20 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright Red Hat Inc. and Hibernate Authors
+ */
+package org.hibernate.processor.test.resultclass;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.NamedQuery;
+
+@Entity
+@NamedQuery(name = "#getNameValue", query = "select p.name, p.value from Post p", resultClass = NameValue.class)
+public class Post {
+	@Id
+	Integer id;
+
+	String name;
+
+	Integer value;
+}

tooling/metamodel-generator/src/test/java/org/hibernate/processor/test/resultclass/ResultClassTest.java

@@ -0,0 +1,40 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright Red Hat Inc. and Hibernate Authors
+ */
+package org.hibernate.processor.test.resultclass;
+
+import jakarta.persistence.EntityManager;
+import org.assertj.core.api.Assertions;
+import org.hibernate.processor.test.util.CompilationTest;
+import org.hibernate.processor.test.util.WithClasses;
+import org.junit.Test;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.ParameterizedType;
+import java.util.List;
+
+import static org.hibernate.processor.test.util.TestUtil.assertMetamodelClassGeneratedFor;
+import static org.hibernate.processor.test.util.TestUtil.assertPresenceOfMethodInMetamodelFor;
+import static org.hibernate.processor.test.util.TestUtil.getMetaModelSourceAsString;
+import static org.hibernate.processor.test.util.TestUtil.getMethodFromMetamodelFor;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ResultClassTest extends CompilationTest {
+	@Test
+	@WithClasses({Post.class, NameValue.class})
+	public void test() {
+		System.out.println( getMetaModelSourceAsString( Post.class ) );
+		assertMetamodelClassGeneratedFor( Post.class );
+
+		assertPresenceOfMethodInMetamodelFor( Post.class, "getNameValue", EntityManager.class );
+		final Method method = getMethodFromMetamodelFor( Post.class, "getNameValue", EntityManager.class );
+		if ( method.getGenericReturnType() instanceof ParameterizedType parameterized ) {
+			assertEquals( List.class, parameterized.getRawType() );
+			assertEquals( NameValue.class, parameterized.getActualTypeArguments()[0] );
+		}
+		else {
+			Assertions.fail();
+		}
+	}
+}