package junit.tests.framework;import junit.framework.AssertionFailedError;import junit.framework.ComparisonFailure;import junit.framework.TestCase;public class AssertTest extends TestCase {	/* In the tests that follow, we can't use standard formatting	 * for exception tests:	 *     try {	 *         somethingThatShouldThrow();	 *         fail();	 *     catch (AssertionFailedError e) {	 *     }	 * because fail() would never be reported.	 */	public void testFail() {		// Also, we are testing fail, so we can't rely on fail() working.		// We have to throw the exception manually, .		try {			fail();		} catch (AssertionFailedError e) {			return;		}		throw new AssertionFailedError();	}	public void testAssertEquals() {		Object o= new Object();		assertEquals(o, o);		try {			assertEquals(new Object(), new Object());		} catch (AssertionFailedError e) {			return;		}		fail();	}	public void testAssertEqualsNull() {		assertEquals(null, null);	}	public void testAssertStringEquals() {		assertEquals("a", "a");	}	public void testAssertNullNotEqualsString() {		try {			assertEquals(null, "foo");			fail();		} catch (ComparisonFailure e) {		}	}	public void testAssertStringNotEqualsNull() {		try {			assertEquals("foo", null);			fail();		} catch (ComparisonFailure e) {			e.getMessage(); // why no assertion?		}	}	public void testAssertNullNotEqualsNull() {		try {			assertEquals(null, new Object());		} catch (AssertionFailedError e) {			e.getMessage(); // why no assertion?			return;		}		fail();	}	public void testAssertNull() {		assertNull(null);		try {			assertNull(new Object());		} catch (AssertionFailedError e) {			return;		}		fail();	}	public void testAssertNotNull() {		assertNotNull(new Object());		try {			assertNotNull(null);		} catch (AssertionFailedError e) {			return;		}		fail();	}	public void testAssertTrue() {		assertTrue(true);		try {			assertTrue(false);		} catch (AssertionFailedError e) {			return;		}		fail();	}	public void testAssertFalse() {		assertFalse(false);		try {			assertFalse(true);		} catch (AssertionFailedError e) {			return;		}		fail();	}	public void testAssertSame() {		Object o= new Object();		assertSame(o, o);		try {			assertSame(new Integer(1), new Integer(1));		} catch (AssertionFailedError e) {			return;		}		fail();	}	public void testAssertNotSame() {		assertNotSame(new Integer(1), null);		assertNotSame(null, new Integer(1));		assertNotSame(new Integer(1), new Integer(1));		try {			Integer obj= new Integer(1);			assertNotSame(obj, obj);		} catch (AssertionFailedError e) {			return;		}		fail();	}	public void testAssertNotSameFailsNull() {		try {			assertNotSame(null, null);		} catch (AssertionFailedError e) {			return;		}		fail();	}}