def testIsSolution(self):
cnf = [[('x', False), ('y', True)], [('y', False), ('z', True)]]
inst1 = {'x': True, 'y': True, 'z': True}
self.assertTrue(sat.is_solution(cnf, inst1))
inst2 = {'x': False, 'y': True, 'z': True}
self.assertTrue(sat.is_solution(cnf, inst2))
inst3 = {'x': True, 'y': False, 'z': True}
self.assertFalse(sat.is_solution(cnf, inst3))
inst4 = dict()
self.assertRaises(sat.SATSolverException, sat.is_solution, cnf, inst4)
def testSolveCNF5(self):
cnf = []
res, cert = sat.solve_cnf(cnf)
self.assertEqual(res, 'satisfiable')
self.assertTrue(sat.is_solution(cnf, cert))
def testSolveCNF1(self):
cnf = [[('x', False), ('y', True)], [('y', False), ('z', True)]]
res, cert = sat.solve_cnf(cnf)
self.assertEqual(res, 'satisfiable')
self.assertTrue(sat.is_solution(cnf, cert))
def testSolveCNF5(self):
cnf = []
res = sat.solve_cnf(cnf)
self.assertTrue(sat.is_solution(cnf, res))
def testSolveCNF1(self):
cnf = [[('x', False), ('y', True)], [('y', False), ('z', True)]]
res = sat.solve_cnf(cnf)
self.assertTrue(sat.is_solution(cnf, res))