JUnit 4 Vs TestNG

                                                    Comparison between JUnit and TestNG

Feature	JUnit 4	TestNG
test annotation	@Test	@Test
run before all tests in this suite have run	—	@BeforeSuite
run after all tests in this suite have run	—	@AfterSuite
run before the test	—	@BeforeTest
run after the test	—	@AfterTest
run before the first test method that belongs to any of these groups is invoked	—	@BeforeGroups
run after the last test method that belongs to any of these groups is invoked	—	@AfterGroups
run before the first test method in the current class is invoked	@BeforeClass	@BeforeClass
run after all the test methods in the current class have been run	@AfterClass	@AfterClass
run before each test method	@Before	@BeforeMethod
run after each test method	@After	@AfterMethod
ignore test	@ignore	@Test(enbale=false)
expected exception	@Test(expected = ArithmeticException.class)	@Test(expectedExceptions = ArithmeticException.class)
timeout	@Test(timeout = 1000)	@Test(timeout = 1000)

1) 

    JUnit 4 : @BeforeClass and @AfterClass method as static method. 

    TestNG is more flexible in method declaration, it does not have this constraints.

2) Exception Test

JUnit4 : @Test(expected = ArithmeticException.class)

TestNG: @Test(expectedExceptions = ArithmeticException.class)

3) Ignore Test

JUnit4: @Ignore("Not Ready to Run")

TestNG: @Test(enabled=false)

4) Group Test , Parameterized Test, Dependency Test are more robust and advance Testing tools in TestNG.