def testSabeQualSeuAlpha(self):
producao = Producao('A', 'abN')
self.assertEqual('A', producao.obterAlpha())
def testNaoSaoIguaisSeNaoPossuemMesmoBeta(self):
producao1 = Producao('A', 'abN')
producao2 = Producao('A', 'abn')
self.assertEqual(producao1.obterAlpha(), producao2.obterAlpha())
self.assertNotEqual(producao1.obterBeta(), producao2.obterBeta())
self.assertNotEqual(producao1, producao2)
def testSabeQualNaoEhSeuBeta(self):
producao = Producao('A', 'abN')
self.assertNotEqual('aBN', producao.obterBeta())
def testSeNaoExisteSimboloNoIndiceInformadoRetornaNone(self):
p = Producao('B', 'a <ABACATE> N b')
self.assertEqual(None, p.obterSimboloBeta(4))
def testSabeDizerQuantosSimbolosExistemNoBetaDaProducao(self):
p = Producao('B', 'a <ABACATE> N b')
self.assertEqual(4, p.obterTamanhoBeta())
def testDadoUmIndiceSabeDizerQualSimboloSeEncontraNaquelaPosicaoNoBetaDaProducao(self):
p = Producao('B', 'a <ABACATE> N b')
self.assertEqual('a', p.obterSimboloBeta(0))
self.assertEqual('<ABACATE>', p.obterSimboloBeta(1))
self.assertEqual('N', p.obterSimboloBeta(2))
self.assertEqual('b', p.obterSimboloBeta(3))
