package com.vaadin.tests.components.gridlayout; import com.vaadin.server.VaadinRequest; import com.vaadin.tests.components.AbstractReindeerTestUI; import com.vaadin.ui.Button; import com.vaadin.ui.GridLayout; import com.vaadin.ui.Label; public class InsertRowInMiddle extends AbstractReindeerTestUI { @Override protected void setup(VaadinRequest request) { final GridLayout layout = new GridLayout(1, 2); layout.addComponent(new Label("some row"), 0, 0); Button newRowButton = new Button("Insert Row"); newRowButton.addClickListener(event -> { layout.insertRow(1); layout.addComponent(new Label("some new row"), 0, 1); }); layout.addComponent(newRowButton, 0, 1); addComponent(layout); } @Override protected String getTestDescription() { return "A new row added to the middle of a GridLayout should appear without any exception being thrown."; } @Override protected Integer getTicketNumber() { return Integer.valueOf(10097); } }