@Test
public void indexOfObject() {

	assertEquals(-1, this.list.indexOf(Integer.valueOf(0)));
	assertEquals(0,  this.list.indexOf(Integer.valueOf(1)));
	assertEquals(1,  this.list.indexOf(Integer.valueOf(2)));
	assertEquals(2,  this.list.indexOf(Integer.valueOf(3)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(4)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(5)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(6)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(7)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(8)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(9)));
	assertEquals(3,  this.list.indexOf(Integer.valueOf(10)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(11)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(12)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(13)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(14)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(15)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(16)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(17)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(18)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(19)));
	assertEquals(4,  this.list.indexOf(Integer.valueOf(20)));
	assertEquals(5,  this.list.indexOf(Integer.valueOf(21)));
	assertEquals(6,  this.list.indexOf(Integer.valueOf(22)));
	assertEquals(7,  this.list.indexOf(Integer.valueOf(23)));
	assertEquals(8,  this.list.indexOf(Integer.valueOf(24)));
	assertEquals(9,  this.list.indexOf(Integer.valueOf(25)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(26)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(27)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(28)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(29)));
	assertEquals(-1, this.list.indexOf(Integer.valueOf(30)));
}