Question

I have to write the following unit test cases in testng:

1. saveProductTest which would return productId if product details are saved successfully in DB.

2. modifyProductTest, it should use previously saved productId as a parameter.

I am taking the product details input(PrdouctName, ReleaseDate) for saveProductTest and modifyProductTest method from an XML file using testNg data providers.Since productId is generated in save method, I have to pass it to the modify method.

What is the best way to pass output of one test method to another method in testng.

Answer 1

With all due respect to simendsjo, the fact that all tests should be independent from each other is a dogmatic approach that has a lot of exceptions.

Back to the original question: 1) use dependent methods and 2) store the intermediate result in a field (TestNG doesn’t recreate your instances from scratch, so that field will retain its value).

For example

private int mResult;

@Test
public void f1() {
  mResult = ...
}

@Test(dependsOnMethods = "f1")
public void f2() {
  // use mResult
}