import static org.junit.Assert.*;

import org.junit.Before;
import org.junit.Test;


public class MyArrayListTest {
	private MyArrayList<Integer> list;

	@Before
	public void setUp() throws Exception {
		list = new MyArrayList<Integer>();
	}

	@Test
	public void testIsConstructorEmpty() {
		assertTrue(list.isEmpty());
	}

	@Test
	public void testConstructorSize() {
		assertEquals(0,list.size());
	}

	@Test
	public void testConstructorGet() {
		try {
			list.get(0);
			fail("expected exception");
		} catch(IndexOutOfBoundsException e) {
			// expected behavior
		}
	}

	/* this also works...
	@Test(expected=IndexOutOfBoundsException)
	public void testConstructorGet() {
		list.get(0);
	}
	*/

	@Test
	public void testAddSize() {
		list.add(42);
		assertEquals(1,list.size());
	}

	@Test
	public void testAddIsEmpty() {
		list.add(42);
		assertFalse(list.isEmpty());
	}

	@Test
	public void testAddGet() {
		list.add(42);
		assertEquals(42,list.get(0));
	}

	@Test
	public void testRemove() {
		list.add(7);
		assertEquals(7,list.remove(0));
	}

	@Test
	public void testRemoveIsEmpty() {
		list.add(7);
		list.remove(0);
		assertTrue(list.isEmpty());
	}
}