Data providers for parameterization in Selenium Java - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a Data Provider in Selenium Java testing?

A Data Provider is a method that supplies test data to a test method, allowing the same test to run multiple times with different inputs.

beginner

How do you annotate a Data Provider method in TestNG?

You use the @DataProvider annotation above the method that returns an Object[][] or Iterator containing test data.

beginner

Why use Data Providers instead of hardcoding test data?

Data Providers help run the same test with multiple data sets, improving test coverage and reducing code duplication.

intermediate

Show a simple example of a Data Provider method in Java for Selenium tests.

Example: @DataProvider(name = "loginData") public Object[][] getData() { return new Object[][] { {"user1", "pass1"}, {"user2", "pass2"} }; }

beginner

How do you link a test method to a Data Provider in TestNG?

Use the @Test annotation with the dataProvider attribute, like @Test(dataProvider = "loginData"), to connect the test method to the Data Provider.

What return type should a Data Provider method have in TestNG?

A Object[][]

B void

C String

D int

A Data Provider method returns Object[][] or Iterator to supply multiple sets of data.

Which annotation is used to mark a Data Provider method?

A @Test

B @BeforeMethod

C @Parameters

D @DataProvider

The @DataProvider annotation marks a method as a source of test data.

How do you specify which Data Provider a test method should use?

A Using @DataProvider(name = "name")

B Using @Test(dataProvider = "name")

C Using @BeforeTest

D Using @Parameters

The @Test annotation's dataProvider attribute links the test to the Data Provider.

What is the main benefit of using Data Providers?

A Skip tests

B Run tests faster

C Run the same test with multiple data sets

D Generate reports

Data Providers allow running the same test multiple times with different inputs.

Which of these is a valid Data Provider method signature?

A public Object[][] data()

B public String data()

C public int data()

D public void data()

Data Providers must return Object[][] or Iterator to supply test data.

Explain how Data Providers help in parameterizing Selenium tests with TestNG.

Think about running the same test many times with different inputs.

Describe the steps to create and use a Data Provider in a Selenium Java test.

Focus on method creation, annotations, and linking.