How to mock a final class with mockito

Question

I have a final class, something like this:

public final class RainOnTrees{

   public void startRain(){

        // some code here
   }
}

I

Answer 1

I think you need think more in principle. Instead you final class use his interface and mock interface instead.

For this:

 public class RainOnTrees{

   fun startRain():Observable{

        // some code here
   }
}

add

interface iRainOnTrees{
  public void startRain():Observable
}

and mock you interface:

 @Before
    fun setUp() {
        rainService= Mockito.mock(iRainOnTrees::class.java)

        `when`(rainService.startRain()).thenReturn(
            just(true).delay(3, TimeUnit.SECONDS)
        )

    }