exception on creating test case for CQ5 component-raising from getResource() method

Hi,

while i am trying to get current node value by mocking node class and ResourceResolver class I am getting nullPointerException over there.Exception is raising from getResource() method.

Here is my actual class code

public class Myclass extends WCMUse {

public void activate() throws Exception {

Node currentNode = getResource().adaptTo(Node.class);

.

.

..........bla bla

}

}

Here is my Test class

    
    @Mock
    Node node;
    @Mock 
    ResourceResolver resourceResolver;
    

    @Test
        
        Resource res=resourceResolver.getResource("/");
        EasyMock.expect(res.adaptTo((Class<Node>) EasyMock.anyObject())).andReturn(node);

In that underlined part I am getting null pointer Exception.

Please suggest me the exact approach.