Annotations

@BeforeSuite: The annotated method will be run before all tests in this suite have run.

@AfterSuite: The annotated method will be run after all tests in this suite have run.

@BeforeTest: The annotated method will be run before any test method belonging to the classes inside the <test> tag is run.

@AfterTest: The annotated method will be run after all the test methods belonging to the classes inside the <test> tag have run.

@BeforeGroups: The list of groups that this configuration method will run before. This method is guaranteed to run shortly before the first test method that belongs to any of these groups is invoked.

@AfterGroups: The list of groups that this configuration method will run after. This method is guaranteed to run shortly after the last test method that belongs to any of these groups is invoked.

@BeforeClass: The annotated method will be run before the first test method in the current class is invoked.

@AfterClass: The annotated method will be run after all the test methods in the current class have been run.

@BeforeMethod: The annotated method will be run before each test method.

@AfterMethod: The annotated method will be run after each test method.

alwaysRun

For before methods (beforeSuite, beforeTest, beforeTestClass and beforeTestMethod, but not beforeGroups): If set to true, this configuration method will be run regardless of what groups it belongs to.

For after methods (afterSuite, afterClass, ...): If set to true, this configuration method will be run even if one or more methods invoked previously failed or was skipped.

dependsOnGroups        The list of groups this method depends on.

dependsOnMethods      The list of methods this method depends on.

enabled            Whether methods on this class/method are enabled.

groups  The list of groups this class/method belongs to.

inheritGroups   If true, this method will belong to groups specified in the @Test annotation at the class level.

@DataProvider

            Marks a method as supplying data for a test method. The annotated method must return an Object[][] where each Object[] can be assigned the parameter list of the test method. The @Test method that wants to receive data from this DataProvider needs to use a dataProvider name equals to the name of this annotation.

name    The name of this data provider. If it's not supplied, the name of this data provider will automatically be set to the name of the method.

parallel If set to true, tests generated using this data provider are run in parallel. Default value is false.

@Factory          Marks a method as a factory that returns objects that will be used by TestNG as Test classes. The method must return Object[].

Difference between @ DataProvider and @ Factory

DataProvider: A test method that uses DataProvider will be executed a multiple number of times based on the data provided by the DataProvider. The test method will be executed using the same instance of the test class to which the test method belongs.

Factory: A factory will execute all the test methods present inside a test class using a separate instance of the respective class.Factories allow you to create tests dynamically.

@Listeners        Defines listeners on a test class.

value    An array of classes that extend org.testng.ITestNGListener.

@Parameters    Describes how to pass parameters to a @Test method.

value    The list of variables used to fill the parameters of this method.

@Test   Marks a class or a method as part of the test.

Test methods are annotated with @Test. Methods annotated with @Test that happen to return a value will be ignored, unless you set allow-return-values to true in your testng.xml:

alwaysRun       If set to true, this test method will always be run even if it depends on a method that failed.

dataProvider     The name of the data provider for this test method.

dataProviderClass         The class where to look for the data provider. If not specified, the data provider will be looked on the class of the current test method or one of its base classes. If this attribute is specified, the data provider method needs to be static on the specified class.

dependsOnGroups        The list of groups this method depends on.

dependsOnMethods      The list of methods this method depends on.

description       The description for this method.

enabled            Whether methods on this class/method are enabled.

expectedExceptions      The list of exceptions that a test method is expected to throw. If no exception or a different than one on this list is thrown, this test will be marked a failure.

groups  The list of groups this class/method belongs to.

invocationCount           The number of times this method should be invoked.

invocationTimeOut        The maximum number of milliseconds this test should take for the cumulated time of all the invocationcounts. This attribute will be ignored if invocationCount is not specified.

priority The priority for this test method. Lower priorities will be scheduled first.

successPercentage        The percentage of success expected from this method

singleThreaded If set to true, all the methods on this test class are guaranteed to run in the same thread, even if the tests are currently being run with parallel="methods". This attribute can only be used at the class level and it will be ignored if used at the method level. Note: this attribute used to be called sequential (now deprecated).

timeOut            The maximum number of milliseconds this test should take.

threadPoolSize The size of the thread pool for this method. The method will be invoked from multiple threads as specified by invocationCount.

Note: this attribute is ignored if invocationCount is not specified