package esimene;

import static org.junit.Assert.*;

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

public class PinuTest {

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

	@Test
	public void testSize() {
		assertEquals(0, p.size());
		p.push(4);
		assertEquals(1, p.size());
		p.push(5);
		assertEquals(2, p.size());
		p.pop();
		assertEquals(1, p.size());
		p.pop();
		assertEquals(0, p.size());
	}
	
	@Test
	public void testValues(){
		p.push(6);
		p.push(3);
		assertEquals(new Integer(3), p.pop());
		assertEquals(new Integer(6), p.pop());
	}

	public void testPeek(){
		p.push(7);
		assertEquals(new Integer(7), p.peek());
		p.push(12);
		assertEquals(new Integer(12), p.peek());
		assertEquals(2, p.size());
		assertEquals(new Integer(12), p.peek());
	}
	
	@Test(expected = IllegalStateException.class)
	public void testStatePop(){
		p.pop();
	}
	@Test(expected = IllegalStateException.class)
	public void testStatePeek(){
		p.peek();
	}
}