function it_can_be_converted_to_a_DFA(State $state, Symbol $symbol)
{
$state->getReachableStatesBySymbol(Argument::type(EpsilonSymbol::class))->willReturn([]);
$state->getReachableSymbols()->willReturn([]);
$state->isFinal()->willReturn(false);
$this->addStartingState($state);
$this->toDFA()->shouldBeAnInstanceOf(DFA::class);
}
function it_returns_the_advanced_closure_for_a_symbol(Symbol $symbol, State $state1, State $state2, State $state3, State $state4)
{
$state1->getReachableStatesBySymbol($symbol)->willReturn([$state2]);
$state2->getReachableStatesBySymbol($symbol)->willReturn([$state3]);
$state3->getReachableStatesBySymbol($symbol)->willReturn([$state4]);
$state4->getReachableStatesBySymbol($symbol)->willReturn([$state1]);
$this->advance($symbol)->shouldBeAnInstanceOf(Closure::class);
}