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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.collections;
import org.junit.Test;
import static org.junit.Assert.*;
import java.util.Arrays;
import java.util.ListIterator;
/**
* @author bratseth
*/
public class ListenableArrayListTestCase {
@Test
public void testIt() {
ListenableArrayList<String> list = new ListenableArrayList<>();
ArrayListListener listener = new ArrayListListener();
list.addListener(listener);
assertEquals(0,listener.invoked);
list.add("a");
assertEquals(1,listener.invoked);
list.add(0,"b");
assertEquals(2,listener.invoked);
list.addAll(Arrays.asList(new String[]{"c", "d"}));
assertEquals(3,listener.invoked);
list.addAll(1,Arrays.asList(new String[]{"e", "f"}));
assertEquals(4,listener.invoked);
list.set(0,"g");
assertEquals(5,listener.invoked);
ListIterator<String> i = list.listIterator();
i.add("h");
assertEquals(6,listener.invoked);
i.next();
i.set("i");
assertEquals(7,listener.invoked);
}
private static class ArrayListListener implements Runnable {
int invoked;
@Override
public void run() {
invoked++;
}
}
}
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