How do you expect and verify a private void method call using PowerMockito and TestNG?

I need to write unit tests against a pre-existing code base using TestNG, Mockito and now PowerMockito, to test private and static methods more easily. I am currently trying to write a test against a private void method in a class that we are testing, but am unable to figure it out. In the normal PowerMock API there are methods called replayAll(), verifyAll(), and expectLastCalled(), which are suitable for most purposes. I just can't find good docs that explain how to do it the PowerMockito way. Any explanations or insights on this would be much appreciated.

Method to test:

private void pVMethod(Type param) throws Exception {

    param.setA(StaticClass.methodA().toString());
    param.setB(StaticClass.methodB().toString());

    // getMemo(String label) is in a public class in same package
    param.setC(getMemo("memo.provider"));
    param.setD(getMemo("memo.item"));
        try {
             param.setTimestamp(DataTypeFactory.newInstance().newXMLGregorianCalendar(newjava.util.GregorianCalendar()));
        } catch (SomeException e) {
           ...
          throw new Exception();
    }
}

test attempt:

@Test(expectedExceptions = Exception.class)
public void pVMethod() throws Exception {
    TestClass testMock = mock(TestClass.class);
    Exception exception = mock(Exception.class);

    // StaticClass staticClassMock = mock(StaticClass.class); ??
    mockStatic(StaticClass.class);

    // when(..) and thenReturn(..) are static imports from PowerMockito library
    when(StaticClass.methodA()).thenReturn("stubStringA");
    when(StaticClass.methodB()).thenReturn("stubStringB");

    doThrow(exception).when(param).setTimestamp(Mockito.any(XMLGregorianCalendar.class));

    // Docs say method name can be inferred via reflection
    Whitebox.invokeMethod(tested, event);

    // this is where things are hairy. testedSpy is defined at the top level
    verifyPrivate(testedSpy).pVMethod(testMock);
}