def test_unpack_results(self): """Test unpack results method. """ with self.assertRaises(Exception) as cm: Problem(Minimize(exp(self.a))).unpack_results("blah", None) self.assertEqual(str(cm.exception), "Unknown solver.") prob = Problem(Minimize(exp(self.a)), [self.a == 0]) args = prob.get_problem_data(s.SCS) results_dict = scs.solve(*args) prob = Problem(Minimize(exp(self.a)), [self.a == 0]) prob.unpack_results(s.SCS, results_dict) self.assertAlmostEqual(self.a.value, 0, places=4) self.assertAlmostEqual(prob.value, 1, places=3) self.assertAlmostEqual(prob.status, s.OPTIMAL) prob = Problem(Minimize(norm(self.x)), [self.x == 0]) args = prob.get_problem_data(s.ECOS) results_dict = ecos.solve(*args) prob = Problem(Minimize(norm(self.x)), [self.x == 0]) prob.unpack_results(s.ECOS, results_dict) self.assertItemsAlmostEqual(self.x.value, [0, 0]) self.assertAlmostEqual(prob.value, 0) self.assertAlmostEqual(prob.status, s.OPTIMAL) prob = Problem(Minimize(norm(self.x)), [self.x == 0]) args = prob.get_problem_data(s.CVXOPT) results_dict = cvxopt.solvers.conelp(*args) prob = Problem(Minimize(norm(self.x)), [self.x == 0]) prob.unpack_results(s.CVXOPT, results_dict) self.assertItemsAlmostEqual(self.x.value, [0, 0]) self.assertAlmostEqual(prob.value, 0) self.assertAlmostEqual(prob.status, s.OPTIMAL)
def test_unpack_results(self): """Test unpack results method. """ with self.assertRaises(Exception) as cm: Problem(Minimize(exp(self.a))).unpack_results("blah", None) self.assertEqual(str(cm.exception), "Unknown solver.") prob = Problem(Minimize(exp(self.a)), [self.a == 0]) args = prob.get_problem_data(s.SCS) results_dict = scs.solve(*args) prob = Problem(Minimize(exp(self.a)), [self.a == 0]) prob.unpack_results(s.SCS, results_dict) self.assertAlmostEqual(self.a.value, 0, places=4) self.assertAlmostEqual(prob.value, 1, places=3) self.assertAlmostEqual(prob.status, s.OPTIMAL) prob = Problem(Minimize(norm(self.x)), [self.x == 0]) args = prob.get_problem_data(s.ECOS) results_dict = ecos.solve(*args) prob = Problem(Minimize(norm(self.x)), [self.x == 0]) prob.unpack_results(s.ECOS, results_dict) self.assertItemsAlmostEqual(self.x.value, [0,0]) self.assertAlmostEqual(prob.value, 0) self.assertAlmostEqual(prob.status, s.OPTIMAL) prob = Problem(Minimize(norm(self.x)), [self.x == 0]) args = prob.get_problem_data(s.CVXOPT) results_dict = cvxopt.solvers.conelp(*args) prob = Problem(Minimize(norm(self.x)), [self.x == 0]) prob.unpack_results(s.CVXOPT, results_dict) self.assertItemsAlmostEqual(self.x.value, [0,0]) self.assertAlmostEqual(prob.value, 0) self.assertAlmostEqual(prob.status, s.OPTIMAL)