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Asked by Neelima Last Modified
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Vinodkumar K V
Engineering Leader with 10+ years of experience, Life long learner and Passionate teacher
In TestNG, a data provider is a method that provides data to a test method. TestNG allows you to pass parameters to test methods using data providers. Here are the two types of data providers in TestNG:
Method Data Provider: A method data provider is a method that returns a two-dimensional array of objects. Each row of the array represents a set of test data, and the columns represent the parameters for the test method. The test method is invoked once for each row of test data.
Data Provider Annotation: The @DataProvider annotation is used to mark a method as a data provider. The method should return a two-dimensional array of objects, where each row represents a set of test data, and the columns represent the parameters for the test method. The name of the data provider can be specified in the @Test annotation, and TestNG will invoke the data provider method to get the test data.
Using data providers, you can easily parameterize your tests and run them with different sets of input data. This can be useful for testing different scenarios and ensuring that your code works correctly under different conditions.
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