Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Jobs Programming & related technical career opportunities; Talent Recruit tech talent & build your employer brand; Advertising Reach developers & technologists worldwide; About the company Parameterization in TestNG for your Selenium automation testing scripts can be done using either the DataProvider or the Parameter annotation with TestNG.xml. In this article, I will show you how one can write data-driven test using DataProvider.A data-driven test will run once for each set of data passed-in and the data will be provided by the method annotated with @DataProvider.. 1. Data Provider returns a two-dimensional object to a test method. testing automated-tests testng dataprovider testng-dataprovider – add the dataProvider attribute to the @Test annotation, and specify which is the dataProvider that you want to use. Data providers separate test methods and test data. Difference between @Factory and @DataProvider. As we are using the TestNG @DataProvider to send the Test Data and the count of the Test Data set provided from the Data Provider is generally more than 100. It is also possible to provide a DataProvider in another class but the method has to be static. TestNG DataProvider helps us in creating loosely coupled test cases. The DataProvider feature in TestNG helps to run the same test method more than once using multiple different data sets. @DataProvider(name=” DataProvider_Name”) tag is used to define any method as data provider and @Test(dataProvider = “DataPRovider_Name”) is used to pass the data set in the test method as we can see in the below examples. Our agenda for this tutorial is to discuss the parameterization in Selenium using TestNG in-built feature. In TestNG, there’s a concept known as data driven testing, which allows testers to automatically run a test case multiple times, with different input and validation values. Define DataProvider … TestNG enables you to group the test cases easily which is not possible in JUnit. Step 2 – Capture Test Data Into Test Case. with Data Providers Let’s see passing parameters using DataProviders: Specifying parameters in testng.xml might not be sufficient if you need to pass complex parameters, or parameters that need to be created from Java (complex objects, objects read from a property file or a database, etc…). We talked about parameterizing in both ways with examples, in great-detail. TestNG in selenium could be understood as a layer which not only facilitates in test execution management (for eg. There are a few steps to follow while using DataProvider in the class. The DataProvider method can be in the same test class or one of its superclasses. Create a Maven Project & add following apache POI dependencies. In our last topic we saw how to use the @Parameters annotation.Now we are going to learn about @DataProvider annotation.. TestNG supports three additional levels such as @Before/After suite, @Before/AfterTest, and Before/AfterGroup. It has various significances, some of its significances are discussed below. Data will then be retrieved and passed to your Test Case Below listed are the high level steps to create a TestNG dataprovider. Data Provider is a method used for supplying the test data to a test method. This can improve test efficiency greatly. Before to this, let us understand little more about Map. The Data-driven concept is achieved by @Data Provider annotation in TestNG. Passing Parameters with XML. Let us consider a scenario in which a test case (@Test) needs multiple test data, DataProvider (@DataProvider) is an annotation which can be used to provide multiple test data to a test case. 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