vaadin-framework/uitest/src/test/java/com/vaadin/tests/components/ui/InvalidViewportTest.java

package com.vaadin.tests.components.ui;

import static org.junit.Assert.assertEquals;

import org.junit.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;

import com.vaadin.tests.tb3.SingleBrowserTest;

public class InvalidViewportTest extends SingleBrowserTest {

    @Test
    public void testInvalidViewport() {
        openTestURL();

        WebElement heading = findElement(By.tagName("h2"));

        assertEquals("HTTP ERROR 500", heading.getText());
    }

}