package com.coding2017.basic;
import org.junit.Assert;
import org.junit.Test;
/**
* Created by kaitao.li on 17/2/21.
*/
public class ArrayListTest {
@Test
public void testAdd() throws Exception {
ArrayList arrayList = new ArrayList();
arrayList.add("0");
Assert.assertTrue(arrayList.get(0).equals("0"));
}
@Test
public void testAddWithIndex() throws Exception {
ArrayList arrayList = new ArrayList();
arrayList.add("0");
arrayList.add("1");
arrayList.add(1, "2");
Assert.assertTrue(arrayList.get(1).equals("2"));
Assert.assertTrue(arrayList.get(2).equals("1"));
Assert.assertTrue(arrayList.size() == 3);
}
@Test
public void get() throws Exception {
ArrayList arrayList = new ArrayList();
arrayList.add("0");
arrayList.add("1");
Assert.assertTrue(arrayList.get(1).equals("1"));
}
@Test
public void remove() throws Exception {
ArrayList arrayList = new ArrayList();
arrayList.add("0");
arrayList.add("1");
arrayList.add("2");
Object remove = arrayList.remove(1);
Assert.assertTrue(remove.equals("1"));
Assert.assertTrue(arrayList.size() == 2);
}
@Test
public void size() throws Exception {
ArrayList arrayList = new ArrayList();
arrayList.add("0");
arrayList.add("1");
Assert.assertEquals(arrayList.size(), 2);
}
@Test
public void testExtend() {
ArrayList arrayList = new ArrayList();
arrayList.add("0");
arrayList.add("1");
arrayList.add("2");
arrayList.add("3");
arrayList.add("4");
Assert.assertTrue(arrayList.get(4).equals("4"));
}
@Test
public void iterator() throws Exception {
ArrayList arrayList = new ArrayList();
arrayList.add("0");
arrayList.add("1");
Iterator iterator = arrayList.iterator();
Assert.assertTrue(iterator.hasNext());
Assert.assertTrue(iterator.next().equals("0"));
Assert.assertTrue(iterator.hasNext());
Assert.assertTrue(iterator.next().equals("1"));
Assert.assertTrue(!iterator.hasNext());
}
}