fragment generation tests

gql_example_build/test/fragments/shape_test.dart

@@ -15,6 +15,22 @@ String getShapeInfo($Shape data) {
   }
 }
 
+String getShapeInfoNoRefs($Shape data) {
+  final shape = data.shape;
+  final type = shape.$__typename;
+  final area = shape.area;
+
+  final square = shape.asSquare();
+  if (square != null) {
+    return "$type(area: $area, sideLength: ${square.sideLength})";
+  }
+
+  final rectangle = shape.asRectangle();
+  if (rectangle != null) {
+    return "$type(area: $area, sideLengthA: ${rectangle.sideLengthA}, sideLengthB: ${rectangle.sideLengthB})";
+  }
+}
+
 void main() {
   group("shape", () {
     test("square", () async {
@@ -48,4 +64,37 @@ void main() {
       );
     });
   });
+
+  group("shape without ref to generated classes", () {
+    test("square", () async {
+      const shapeData = <String, dynamic>{
+        "shape": <String, dynamic>{
+          "__typename": "Square",
+          "area": 4,
+          "sideLength": 2,
+        },
+      };
+
+      expect(
+        getShapeInfoNoRefs($Shape(shapeData)),
+        "Square(area: 4.0, sideLength: 2.0)",
+      );
+    });
+
+    test("rectangle", () async {
+      const shapeData = <String, dynamic>{
+        "shape": <String, dynamic>{
+          "__typename": "Rectangle",
+          "area": 3,
+          "sideLengthA": 3,
+          "sideLengthB": 1,
+        },
+      };
+
+      expect(
+        getShapeInfoNoRefs($Shape(shapeData)),
+        "Rectangle(area: 3.0, sideLengthA: 3.0, sideLengthB: 1.0)",
+      );
+    });
+  });
 }