vaadin-framework/uitest/src/main/java/com/vaadin/tests/integration/EmbedSizeTest.java

package com.vaadin.tests.integration;

import com.vaadin.tests.components.TestBase;
import com.vaadin.tests.util.Log;
import com.vaadin.ui.CheckBox;
import com.vaadin.ui.LegacyWindow;

public class EmbedSizeTest extends TestBase {

    private Log log = new Log(10);

    @Override
    protected void setup() {
        LegacyWindow mainWindow = getMainWindow();
        mainWindow.setSizeUndefined();
        mainWindow.getContent().setSizeUndefined();

        CheckBox lazyCheckBox = new CheckBox("Lazy resize");
        lazyCheckBox.addValueChangeListener(event -> {
            boolean resizeLazy = event.getValue();
            getMainWindow().setResizeLazy(resizeLazy);
            log.log("Resize lazy: " + resizeLazy);
        });
        lazyCheckBox.setValue(Boolean.FALSE);
        addComponent(lazyCheckBox);

        addComponent(log);
        mainWindow.getPage().addBrowserWindowResizeListener(
                event -> log.log("Resize event: " + event.getWidth() + " x "
                        + event.getHeight()));
    }

    @Override
    protected String getDescription() {
        return "Resizing the browser window should send consistent resize events to the server even when the application is embedded";
    }

    @Override
    protected Integer getTicketNumber() {
        return Integer.valueOf(7923);
    }

}