ArrayListTest.java

package mytest;
import org.junit.*;
import static org.junit.Assert.*;
import java.util.*;

public class ArrayListTest {
  private ArrayList<String> list = new ArrayList<String>();
  
  @Before
  public void setUp() throws Exception {
  }
  
  @Test
  public void testInsertion() {
    list.add("Beijing");
    assertEquals("Beijing", list.get(0));
    list.add("Shanghai");
    list.add("Hongkong");
    assertEquals("Hongkong", list.get(list.size() – 1));
  }
  
  @Test
  public void testDeletion() {
    list.clear();
    assertTrue(list.isEmpty());
    list.add("A");
    list.add("B");
    list.add("C");
    list.remove("B");
    assertEquals(2, list.size());
  }
}