What are TestNG data providers?

What are TestNG data providers?

TestNG data providers allow you to run the same test method with different sets of data, enhancing test coverage.

How do I create a data provider in TestNG?

You can create a data provider by using the @DataProvider annotation and returning an Object array with the test data.

Can you show me an example of a data provider?

Sure! Here's a simple example:

@DataProvider(name = "data")
public Object[][] dataProviderMethod() {
    return new Object[][] {{"data1", 1}, {"data2", 2}};
}

How do I link a data provider to a test method?

You can link it using the 'dataProvider' attribute in the @Test annotation, like this:

@Test(dataProvider = "data")
public void testMethod(String data, int number) {
    // test logic here
}