package com.vaadin.tests.server.component.orderedlayout;
import java.util.Iterator;
import junit.framework.TestCase;
import com.vaadin.ui.AbstractOrderedLayout;
import com.vaadin.ui.Component;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.VerticalLayout;
public class TestOrderedLayout extends TestCase {
public void testVLIteration() {
testIndexing(new VerticalLayout(), 10);
}
public void testHLIteration() {
testIndexing(new HorizontalLayout(), 12);
}
public void testIndexing(AbstractOrderedLayout aol, int nrComponents) {
Component[] components = generateComponents(nrComponents);
for (Component c : components) {
aol.addComponent(c);
}
for (int i = 0; i < nrComponents; i++) {
assert (aol.getComponent(i) == components[i]);
assert (aol.getComponentIndex(components[i]) == i);
}
// Iteration should be in indexed order
int idx = 0;
for (Iterator<Component> i = aol.getComponentIterator(); i.hasNext();) {
Component c = i.next();
assert (aol.getComponentIndex(c) == idx++);
}
}
private Component[] generateComponents(int nr) {
Component[] components = new Component[nr];
for (int i = 0; i < nr; i++) {
components[i] = new Label("" + i);
}
return components;
}
}