TestNG is the framework which is very useful to use with selenium WebDriver.
The main reason behind TestNG's popularity is we can create and configure test case and test suite very easily using many different annotations of TestNG.
Annotations are those things in TestNG which guides it for what to do
next or which method should be executed next. TestNG has also facility
to pass parameters with annotations. Let we look at TestNG annotations
list with its functional description.
@Test
@Test annotation describes method as a test method or part of your test.
@BeforeMethod
Any method which is marked with @BeforeMethod annotation will be executed before each and every @test annotated method.
@AfterMethod
Same as @BeforeMethod, If any method is annotated with @AfterMethod
annotation then it will be executed after execution of each and every
@test annotated method.
@BeforeClass
Method annotated using @BeforeClass will be executed before first @Test
method execution. @BeforeClass annotated method will be executed once
only per class so don't be confused.
VIEWPRACTICALEXAMPLEOF@BeforeClass ANNOTATION
@AfterClass
Same as @BeforeClass, Method annotated with @AfterClass annotation will
be executed once only per class after execution of all @Test annotated
methods of that class.
VIEWPRACTICALEXAMPLEOF@AfterClass ANNOTATION
@BeforeTest
@BeforeTest annotated method will be executed before the any @Test
annotated method of those classes which are inside <test> tag in
testng.xml file.
VIEW PRACTICAL EXAMPLE
@AfterTest
@AfterTest annotated method will be executed when all @Test annotated
methods completes its execution of those classes which are inside
<test> tag in testng.xml file.
VIEW PRACTICAL EXAMPLE
@BeforeSuite
Method marked with @BeforeSuite annotation will run before the all suites from test.
@AfterSuite
@AfterSuite annotated method will start running when execution of all tests executed from current test suite.
@DataProvider
When you use @DataProvider annotation for any method that means you are
using that method as a data supplier. Configuration of @DataProvider
annotated method must be like it always return Object[][] which we can
use in @Test annotated method.
@BeforeGroups
@BeforeGroups annotated method will run before the first test run of that specific group.
@AfterGroups
@AfterGroups annotated method will run after all test methods of that group completes its execution.
@Parameters
When you wants to pass parameters in your test methods, you need to use @Parameters annotation.
VIEWPRACTICALEXAMPLEOF@Parameters ANNOTATION
@Factory
When you wants to execute specific group of test cases with different
values, you need to use @Factory annotation. An array of class objects
is returned by @Factory annotated method and those TestNG will those
objects as test classes.
@Listeners
@Listeners are used to with test class. It is helpful for logging purpose.
