private void runAsserts(CachingMoveSelector moveSelector) {
   Iterator<Move> iterator = moveSelector.iterator();
   assertNotNull(iterator);
   assertTrue(iterator.hasNext());
   assertCode("a1", iterator.next());
   assertTrue(iterator.hasNext());
   assertCode("a2", iterator.next());
   assertTrue(iterator.hasNext());
   assertCode("a3", iterator.next());
   assertFalse(iterator.hasNext());
   assertEquals(false, moveSelector.isContinuous());
   assertEquals(false, moveSelector.isNeverEnding());
   assertEquals(3L, moveSelector.getSize());
   assertEquals(7L, moveSelector.getRandomProbabilityWeight());
 }
  public void runCacheType(SelectorCacheType cacheType, int timesCalled) {
    CachingMoveSelector moveSelector = new CachingMoveSelector(cacheType);
    MoveSelector childMoveSelector = mock(MoveSelector.class);
    final List<Move> moveList =
        Arrays.<Move>asList(new DummyMove("a1"), new DummyMove("a2"), new DummyMove("a3"));
    when(childMoveSelector.iterator())
        .thenAnswer(
            new Answer<Object>() {
              public Object answer(InvocationOnMock invocation) throws Throwable {
                return moveList.iterator();
              }
            });
    when(childMoveSelector.isContinuous()).thenReturn(false);
    when(childMoveSelector.isNeverEnding()).thenReturn(false);
    when(childMoveSelector.getSize()).thenReturn((long) moveList.size());
    when(childMoveSelector.getRandomProbabilityWeight()).thenReturn(7L);
    moveSelector.setChildMoveSelector(childMoveSelector);
    verify(childMoveSelector, times(1)).isNeverEnding();

    DefaultSolverScope solverScope = mock(DefaultSolverScope.class);
    moveSelector.solvingStarted(solverScope);

    AbstractSolverPhaseScope phaseScopeA = mock(AbstractSolverPhaseScope.class);
    when(phaseScopeA.getSolverScope()).thenReturn(solverScope);
    moveSelector.phaseStarted(phaseScopeA);

    AbstractStepScope stepScopeA1 = mock(AbstractStepScope.class);
    when(stepScopeA1.getSolverPhaseScope()).thenReturn(phaseScopeA);
    moveSelector.stepStarted(stepScopeA1);
    runAsserts(moveSelector);
    moveSelector.stepEnded(stepScopeA1);

    AbstractStepScope stepScopeA2 = mock(AbstractStepScope.class);
    when(stepScopeA2.getSolverPhaseScope()).thenReturn(phaseScopeA);
    moveSelector.stepStarted(stepScopeA2);
    runAsserts(moveSelector);
    moveSelector.stepEnded(stepScopeA2);

    moveSelector.phaseEnded(phaseScopeA);

    AbstractSolverPhaseScope phaseScopeB = mock(AbstractSolverPhaseScope.class);
    when(phaseScopeB.getSolverScope()).thenReturn(solverScope);
    moveSelector.phaseStarted(phaseScopeB);

    AbstractStepScope stepScopeB1 = mock(AbstractStepScope.class);
    when(stepScopeB1.getSolverPhaseScope()).thenReturn(phaseScopeB);
    moveSelector.stepStarted(stepScopeB1);
    runAsserts(moveSelector);
    moveSelector.stepEnded(stepScopeB1);

    AbstractStepScope stepScopeB2 = mock(AbstractStepScope.class);
    when(stepScopeB2.getSolverPhaseScope()).thenReturn(phaseScopeB);
    moveSelector.stepStarted(stepScopeB2);
    runAsserts(moveSelector);
    moveSelector.stepEnded(stepScopeB2);

    AbstractStepScope stepScopeB3 = mock(AbstractStepScope.class);
    when(stepScopeB3.getSolverPhaseScope()).thenReturn(phaseScopeB);
    moveSelector.stepStarted(stepScopeB3);
    runAsserts(moveSelector);
    moveSelector.stepEnded(stepScopeB3);

    moveSelector.phaseEnded(phaseScopeB);

    moveSelector.solvingEnded(solverScope);

    verify(childMoveSelector, times(timesCalled)).iterator();
    verify(childMoveSelector, times(timesCalled)).getSize();
    verify(childMoveSelector, times(timesCalled)).getRandomProbabilityWeight();
  }