Original Void Method is called when using Mockito.doNothing

[gayathri murugesan]

Hi,

I am new to JUnit Testing.I have a void DB call which i need to mock.

In the method i need to test,

I have


DBTester db = new DBTester();
db.method();



DBTester mockobj = Mockito.mock(DBTester.class);
Mockito.doNothing().when(mockObj).method((BigInteger)Mockito.anyObject(), (BigInteger)Mockito.anyObject(), (obj)Mockito.anyObject());

In have added in the annotation

@PrepareForTest({DBTester.class})

But it hits the original DB Call.Can someone please throw light on where i am going wrong

Thanks in advance