/**
 * The test class : FactorielleTest.
 */
import java.math.BigInteger;
public class FactorielleTest extends junit.framework.TestCase
{
	public void testfact1()
	{
		assertEquals(2, Factorielle.fact1(2));
		assertEquals(720, Factorielle.fact1(6));
		assertEquals(1, Factorielle.fact1(1));
		assertEquals(1, Factorielle.fact1(0));
		assertEquals(479001600, Factorielle.fact1(12));
		assertEquals(-1, Factorielle.fact1(13));
		assertEquals(-1, Factorielle.fact1(-1));
		assertEquals(-1, Factorielle.fact1(-6));
	} // testfact1()

// 	public void testfact2()
// 	{
// 		assertEquals(2L, Factorielle.fact2(2));
// 		assertEquals(720L, Factorielle.fact2(6));
// 		assertEquals(1L, Factorielle.fact2(1));
// 		assertEquals(1L, Factorielle.fact2(0));
// 		assertEquals(2432902008176640000L, Factorielle.fact2(20));
// 		assertEquals(-1L, Factorielle.fact2(21));
// 		assertEquals(-1L, Factorielle.fact2(-1));
// 		assertEquals(-1L, Factorielle.fact2(-6));
// 	} // testfact2()

// 	public void testfact3()
// 	{
// 	        final BigInteger MINUS_ONE = BigInteger.ONE.negate();
// 		assertEquals(BigInteger.valueOf(2L), Factorielle.fact3(2));
// 		assertEquals(BigInteger.valueOf(720L), Factorielle.fact3(6));
// 		assertEquals(BigInteger.ONE, Factorielle.fact3(1));
// 		assertEquals(BigInteger.ONE, Factorielle.fact3(0));
// 		assertEquals(BigInteger.valueOf(2432902008176640000L), Factorielle.fact3(20));
// 		assertEquals(MINUS_ONE, Factorielle.fact3(-1));
// 		assertEquals(MINUS_ONE, Factorielle.fact3(-6));
// 		assertEquals(new BigInteger("51090942171709440000"), Factorielle.fact3(21));
// 		assertEquals(new BigInteger("265252859812191058636308480000000"), Factorielle.fact3(30));
// 		assertEquals(2568, Factorielle.fact3(1000).toString().length());
// 	} // testfact3()


/////////////////////////////////////////////////////////
    /**
     * Default constructor for test class ExercicesTest
     */
    public FactorielleTest()
    {
    }

    /**
     * Sets up the test fixture.
     *
     * Called before every test case method.
     */
    protected void setUp()
    {
    }

    /**
     * Tears down the test fixture.
     *
     * Called after every test case method.
     */
    protected void tearDown()
    {
    }

} // FactorielleTest