How to inject parameter into constructor of TestNG class?

Question

I have implemented a programm with the strategy pattern. So I have an interface which is used at some places and the concrete implementation may be replaced.

Now I

Answer 1

You have several options. If you are using Guice, here is a very straightforward way to inject your implementation.

If not, you can use a mix of factories and data provider:

@Factory(dataProvider = "dp")
public FactoryDataProviderSampleTest(StrategyInterface si) {
}

@DataProvider
static public Object[][] dp() {
  return new Object[][] {
    new Object[] { new Strategy1Impl() },
    new Object[] { new Strategy2Impl() },
  };
}