java - Powermock verify private static method call in non static method -

dear stackoverflow comrades, again have problem in getting specific powermock / mockito case work. the issue is, need verify call of private static method, called public non-static method. similar example posted on how suppress , verify private static method calls?

this code:

class factory {          public string factorobject() throws exception {             string s = "hello mary lou";             checkstring(s);             return s;         }          private static void checkstring(string s) throws exception {             throw new exception();         }     } 

and testclass:

@runwith(powermockrunner.class) @preparefortest(factory.class) public class tests extends testcase {      public void testfactory() throws exception {          factory factory = mock(factory.class);         suppress(method(factory.class, "checkstring", string.class));         string s = factory.factorobject();         verifyprivate(factory, times(8000)).invoke("checkstring", anystring());     } } 

the problem here is, test successful, shouldn't be. shouldn't because private static method should called 1 times. no matter value put in times(), verifies true... halp :(

ok, think found answer, headache. rudy gave me final hint using using spy, still not trivial (although solution looks "baby-easy"). here complete solution:

import static org.mockito.matchers.anystring; import static org.mockito.mockito.times; import static org.powermock.api.mockito.powermockito.verifyprivate; import static org.powermock.api.mockito.powermockito.donothing; import static org.powermock.api.mockito.powermockito.spy;  @runwith(powermockrunner.class) @preparefortest(factory.class) public class tests extends testcase {      public void testfactory() throws exception {          factory factoryspy = spy(new factory());         string s = factoryspy.factorobject();         donothing().when(factoryspy, "checkstring", anystring());         verifyprivate(factoryspy, times(1)).invoke("checkstring", anystring());      } }