def test_combine_length(self):
#test for values that differ in length
#valueerror exception should be thrown
minterms = [1, 2, 3, 4, 5, 6, 15]
qm = QM(minterms)
with self.assertRaises(ValueError):
qm.combine('00000', '0001'), ValueError
#test for values that are the same
#None should be returned
self.assertEqual(qm.combine('0000', '0000'), None)
def test_combine_single_values(self):
#test for two terms that are not supposed to be combined
#expected return value should be None
minterms = [1, 2, 3, 4, 5, 6, 15]
qm = QM(minterms)
self.assertEqual(qm.combine('0000', '1001'), None)
#test for values(without _ ) that differ by exactly one position
#expected return value should have a new value with a _ in the positiion of difference
self.assertEqual(qm.combine('0000', '0001'), '000_')
#test for values(without _ ) that differ by exactly one position
#expected return value should have a new value with a _ in the positiion of difference
self.assertEqual(qm.combine('000_', '100_'), '_00_')
def test_combine(self):
#test for two terms that are not supposed to be combined
#expected return value should be None
minterms = [1,2,3,4,5,6,15]
qm = QM(minterms)
self.assertEqual(qm.combine('0000','1001'),None)
#test for values(without _ ) that differ by exactly one position
#expected return value should have a new value with a _ in the positiion of difference
self.assertEqual(qm.combine('0000','0001'),'000_')
#test for values(without _ ) that differ by exactly one position
#expected return value should have a new value with a _ in the positiion of difference
self.assertEqual(qm.combine('000_','100_'),'_00_')
#test for values that differ in length
#valueerror exception should be thrown
with self.assertRaises(ValueError):
qm.combine('00000','0001'),ValueError
#test for values that are the same
#None should be returned
self.assertEqual(qm.combine('0000','0000'),None)