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How to use read_constraints method in avocado

Best Python code snippet using avocado_python

test_solver.py

Source:test_solver.py

...12        constraints = {((0, 0), (2, 0)), ((0, 1), (1, 1)), ((1, 0), (2, 0))}13        solver = Solver([], [])14        solver.data = parameters15        solver.constraints = constraints16        solver.read_constraints()17        solver.compute_constraints()18        self.assertEqual(solver.constraints, constraints, "compute_constraints change constraints without secret "19                                                          "constraint")20    def test_compute_constraints_new_constraint_with_more_than_one_value_for_one_parameter(self):21        """22        Test that, function shouldn't change constraints. It founds new constraint,23        but the constraint has one parameter with two values. This means that it isn't secreted constraint.24        """25        parameters = [3, 3, 3]26        constraints = {((0, 0), (1, 0)), ((0, 1), (1, 1)), ((1, 2), (2, 0))}27        solver = Solver([], [])28        solver.data = parameters29        solver.constraints = constraints30        solver.read_constraints()31        solver.compute_constraints()32        self.assertEqual(solver.constraints, constraints, "compute_constraints change constraints without secret "33                                                          "constraint")34    def test_compute_constraints_detect_invalid_constraints(self):35        """36        Test that, function should raise an exception, if there is invalid_constraints37        """38        parameters = [3, 3, 3]39        constraints = {((0, 0),), ((0, 1),), ((0, 2),)}40        solver = Solver([], [])41        solver.data = parameters42        solver.constraints = constraints43        solver.read_constraints()44        self.assertRaises(ValueError, solver.compute_constraints)45    def test_compute_constraints_with_one_secrete_constraint(self):46        """47        Test that, function should find new constraint48        """49        parameters = [3, 3, 3, 3]50        constraints = {((0, 0), (2, 0)), ((0, 1), (1, 1), (2, 0)), ((0, 2), (3, 2))}51        solver = Solver([], [])52        solver.data = parameters53        solver.constraints = constraints54        solver.read_constraints()55        solver.compute_constraints()56        expectation = {((0, 0), (2, 0)), ((0, 1), (1, 1), (2, 0)), ((0, 2), (3, 2)),57                       ((1, 1), (2, 0), (3, 2))}58        self.assertEqual(solver.constraints, expectation, "compute_constraints didn't find secret constraints")59    # Test for simplify_constraints function60    def test_simplify_constraints_constraints_without_simplification(self):61        """62        Test that, function do not delete important constraints63        """64        parameters = [3, 3, 3, 3]65        constraints = {((0, 0), (2, 0)), ((0, 1), (1, 1), (2, 0)), ((0, 2), (3, 2))}66        solver = Solver([], [])67        solver.data = parameters68        solver.constraints = constraints69        solver.read_constraints()70        solver.simplify_constraints()71        self.assertEqual(solver.constraints, constraints, "simplify_constraints deleted some important constraints")72    def test_simplify_constraints_constraints_with_simplification(self):73        """74        Test that, function do not delete important constraints75        """76        parameters = [3, 3, 3, 3]77        constraints = {((0, 0), (2, 0)), ((0, 1), (2, 0), (1, 1)),78                       ((0, 2), (2, 0)), ((2, 0),)}79        solver = Solver([], [])80        solver.data = parameters81        solver.constraints = constraints82        solver.read_constraints()83        solver.simplify_constraints()84        expectation = {((2, 0),)}85        self.assertEqual(solver.constraints, expectation, "simplify_constraints deleted some important constraints")86    # Test of Minimum forbidden tuple algorithm87    def test_solver_without_secrete_constraints(self):88        """89        Test that, solver didn't change constraints if there isn't any secret constraint90        """91        parameters = [3, 3, 3]92        constraints = {((0, 0), (2, 0)), ((0, 1), (1, 1)), ((1, 0), (2, 0))}93        solver = Solver(parameters, constraints)94        self.assertEqual(solver.constraints, constraints, "solver change constraints without secret "95                                                          "constraint")96    def test_solver_constraints_without_simplification(self):...

universes-smt.py

Source:universes-smt.py

1#!/usr/bin/python2import sys3def read_constraints(file):4    lines = file.readlines()5    nodes = set()6    edges = set()7    last = None8    for ln in lines:9        ln = ln.replace(';', '')10        parts = ln.split()11        if len(parts) == 3:12            last = parts[0]13        elif len(parts) == 2:14            parts = [last, parts[0], parts[1]]15        else:16            assert False17            18        st = parts[0].strip()19        en = parts[2].strip()20        nodes.add(st)21        nodes.add(en)22        edges.add((st,en,parts[1].strip()))23    return (nodes, edges)24def dump_smt(nodes, edges, out=sys.stdout):25    def name_of(n):26        return n.replace('.', '_')27    for n in nodes:28        out.write("(define %s::int)\n" % name_of(n))29    out.write("\n")30    for (st, en, op) in edges:31        out.write("(assert (%s %s %s))\n" % (op, name_of(st), name_of(en)))32        33    out.write("(exit)\n")34if __name__ == '__main__':35    (nodes, edges) = read_constraints(sys.stdin)...

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