package essai;
import org.junit.BeforeClass;
import org.junit.AfterClass;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.Ignore;
import org.junit.Assert;

/**
 * @author lugiez
 *
 */
public class EssaiTest {
	/*
	 * declare some objects used throughout testing
	 */
	private Essai essai1;	

	@BeforeClass
	public static void GeneralsetUp() throws Exception {
		System.out.print("General setup\n");	
	}

	@AfterClass
	public static void GeneralTearDown() throws Exception {
		System.out.print("General teardown\n");	
	}

	/*
	/**
	 * @throws Exception
	 * sets some objects to use during tests
	 */
	@Before
	public void setUp() throws Exception {
		essai1=new Essai(0);
		System.out.print("Test debut\n");
		
	}
	/**
	 * @throws Exception
	 * clean up after all testing is done (for instance restoring a DB values)
	 * nothing to do here
	 */
	@After
	public void tearDown() throws Exception {
		//nothing to do
		System.out.print("Test effectué\n");
	}

	/**
	 * Test avec asserNotNull: tester que l'objet a été créé 
	 *
	 */
	@Test
	public final void testNull(){
		Essai essai=essai1;
		Assert.assertNotNull(essai);
	}	
	/**
	 *  Test method for {@link Essai#getVal()}.
	 * Test pour verifier que le champ a la bonne valeur	
	 *
	 */
	@Test
	public  void testDefaultAttribute() {
		Assert.assertEquals(0,essai1.getVal());
	}
	/**
	 * Tester une modification par setVal de 0 en 1 de  l'attribut 
	 */
	@Test
	public final void testSetVal() {
		int expected=1;
		essai1.setVal(1);
		Assert.assertEquals(expected,essai1.getVal());  
	}

	/**
	 * Tester que la modif de 0 en 1 pour l'attribut du test precedent
	 * n'est pas permanente 
	 */
	@Test
	public final void  testInvariantSetUp() {
		int shouldnotbeexpected=1;
		Assert.assertFalse(shouldnotbeexpected==essai1.getVal());  
	}
	
	/**
	 * a test that must fail
	 *
	 */
	//@Test
	@Ignore
	public final void testGetValWrong(){
		essai1.setVal(2);
		int expected=1;
		Assert.assertEquals(expected,essai1.getVal());
	}
	/**
	 * a test to skip 
	 *
	 */
	@Ignore
	public final void testNotYetImplemented (){
		Assert.fail("I should fail");
	
	}
	
	@Test
	public final void testAdd(){
		int expected=1;
		int val=1;
		Assert.assertTrue("Test 0 neutre",expected==val);
	}
	
	@Test(expected=ArithmeticException.class)
	public final void testExceptionInverse(){
		essai1.setVal(0);
		float inv=essai1.invVal();
		System.out.println(inv);
	}
}