import static org.mockito.Mockito.*;

@Test
public void testVerify()  {
    // create and configure mock
    MyClass test = Mockito.mock(MyClass.class);
    when(test.getUniqueId()).thenReturn(43);


    // call method testing on the mock with parameter 12
    test.testing(12);
    test.getUniqueId();
    test.getUniqueId();


    // now check if method testing was called with the parameter 12
    verify(test).testing(ArgumentMatchers.eq(12));

    // was the method called twice?
    verify(test, times(2)).getUniqueId();

    // other alternatives for verifiying the number of method calls for a method
    verify(test, never()).someMethod("never called");
    verify(test, atLeastOnce()).someMethod("called at least once");
    verify(test, atLeast(2)).someMethod("called at least twice");
    verify(test, times(5)).someMethod("called five times");
    verify(test, atMost(3)).someMethod("called at most 3 times");
    // This let's you check that no other methods where called on this object.
    // You call it after you have verified the expected method calls.
    verifyNoMoreInteractions(test);
}