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package com.vaadin.tests.application;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import java.util.List;
import org.junit.Test;
import com.vaadin.testbench.elements.ButtonElement;
import com.vaadin.testbench.elements.LabelElement;
import com.vaadin.tests.tb3.MultiBrowserTest;
public class DetachOldUIOnReloadTest extends MultiBrowserTest {
private static final String RELOAD = "Reload page";
private static final String READ_LOG = "Read log messages from session";
@Test
public void testDetachesUIOnReload() throws InterruptedException {
openTestURL();
List<LabelElement> labels = $(LabelElement.class).all();
assertEquals("initial label incorrect", "This is UI 0",
lastLabelText(labels));
assertFalse("reloading button not found",
$(ButtonElement.class).caption(RELOAD).all().isEmpty());
openTestURL();
click(READ_LOG);
checkLabels("first", 1);
click(RELOAD);
click(READ_LOG);
checkLabels("second", 2);
openTestURL();
click(READ_LOG);
checkLabels("third", 3);
// restarting reverts to 0
openTestURL("restartApplication");
checkLabels("final", 0);
}
private void checkLabels(String descriptor, int index) {
List<LabelElement> labels = $(LabelElement.class).all();
assertEquals(
String.format("label incorrect after %s reload", descriptor),
String.format("This is UI %s", index), lastLabelText(labels));
if (!"final".equals(descriptor)) {
assertEquals(
String.format("log message incorrect after %s reload",
descriptor),
String.format("%s. UI %s has been detached", index,
index - 1),
labels.get(0).getText());
}
}
private String lastLabelText(List<LabelElement> labels) {
return labels.get(labels.size() - 1).getText();
}
private void click(String caption) {
$(ButtonElement.class).caption(caption).first().click();
}
}
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