fix: Record implementing interface field

Author: mskacelik

common/schema-builder/src/main/java/io/smallrye/graphql/schema/creator/type/InterfaceCreator.java

@@ -1,5 +1,8 @@
 package io.smallrye.graphql.schema.creator.type;
 
+import static io.smallrye.graphql.schema.Annotations.NAME;
+import static io.smallrye.graphql.schema.Annotations.getAnnotationsForMethod;
+
 import java.util.List;
 
 import org.jboss.jandex.ClassInfo;
@@ -38,7 +41,8 @@ protected void addFields(Type interfaceType, ClassInfo classInfo, Reference refe
 
         // Add all fields from interface itself
         for (MethodInfo methodInfo : classInfo.methods()) {
-            if (MethodHelper.isPropertyMethod(Direction.OUT, methodInfo)) {
+            if (MethodHelper.isPropertyMethod(Direction.OUT, methodInfo)
+                    || getAnnotationsForMethod(methodInfo).containsKeyAndValidValue(NAME)) {
                 fieldCreator.createFieldForInterface(methodInfo, reference)
                         .ifPresent(interfaceType::addField);
             }

server/integration-tests/src/test/java/io/smallrye/graphql/tests/records/RecordImplementingInterfaceTest.java

@@ -0,0 +1,89 @@
+package io.smallrye.graphql.tests.records;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.net.URL;
+import java.util.List;
+
+import org.eclipse.microprofile.graphql.GraphQLApi;
+import org.eclipse.microprofile.graphql.Name;
+import org.eclipse.microprofile.graphql.Query;
+import org.jboss.arquillian.container.test.api.Deployment;
+import org.jboss.arquillian.junit.Arquillian;
+import org.jboss.arquillian.test.api.ArquillianResource;
+import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.jboss.shrinkwrap.api.spec.WebArchive;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import io.smallrye.graphql.tests.GraphQLAssured;
+
+@RunWith(Arquillian.class)
+public class RecordImplementingInterfaceTest {
+    @Deployment
+    public static WebArchive deployment() {
+        return ShrinkWrap.create(WebArchive.class, "default.war")
+                .addClasses(CustomerProductResource.class, InternetLine.class, MobileLine.class, CustomerProduct.class);
+    }
+
+    @ArquillianResource
+    URL testingURL;
+
+    @Test
+    public void testRecordImplementingInterface() {
+        GraphQLAssured graphQLAssured = new GraphQLAssured(testingURL);
+        final String query = """
+                query {
+                  products {
+                    name
+                  }
+                }
+                """;
+        final String expected = """
+                {
+                  "data": {
+                    "products": [
+                      {
+                        "name": "Fiber 100"
+                      },
+                      {
+                        "name": "Mobile 1"
+                      },
+                      {
+                        "name": "Fiber 200"
+                      },
+                      {
+                        "name": "Mobile 2"
+                      }
+                    ]
+                  }
+                }
+                """;
+        assertThat(graphQLAssured.post(query)).isEqualToIgnoringWhitespace(expected);
+
+    }
+
+    @GraphQLApi
+    public static class CustomerProductResource {
+
+        @Query
+        public List<CustomerProduct> getProducts() {
+            return List.of(
+                    new InternetLine("Fiber 100", 100),
+                    new MobileLine("Mobile 1", "123456789"),
+                    new InternetLine("Fiber 200", 200),
+                    new MobileLine("Mobile 2", "987654321"));
+        }
+    }
+
+    public sealed interface CustomerProduct permits InternetLine, MobileLine {
+        @Name("name") // @Name("") is also valid, since it automatically uses the field name
+        String name();
+    }
+
+    public record InternetLine(String name, int speed) implements CustomerProduct {
+    }
+
+    public record MobileLine(String name, String phoneNumber) implements CustomerProduct {
+    }
+}