LayerImpl layer2 = MapTests.createLayer(null, new RendererCreatorTestObjForMulitRenderer(), layer.getMapInternal());
LayerImpl layer3 = MapTests.createLayer(null, new RendererCreatorTestObjForMulitRenderer(), layer.getMapInternal());
LayerImpl layer4 = MapTests.createLayer(null, new RendererCreatorTestObjForSingleRenderer(), layer.getMapInternal());
NotificationImpl notificationImpl = new ENotificationImpl((InternalEObject) layer.getContextModel(), Notification.ADD,
ProjectPackage.CONTEXT_MODEL__LAYERS, null, layer);
creator.changed(notificationImpl);
creator.reset();
Collection<RenderContext> config = creator.getConfiguration();