void () { myFixture.configureByText("Derived.java", "class Base {int x;}\n" + "class Derived extends Base {int getX() {return 0;}}"); myFixture.testStructureView(component -> { component.setActionActive(FieldsFilter.ID, false); component.setActionActive(PropertiesGrouper.ID, true); PlatformTestUtil.assertTreeEqual(component.getTree(), """ -Derived.java -Base x: int -Derived +x: int"""); }); }