+# Copyright 2014 MINES ParisTech
+#
+# This file is part of Linpy.
+#
+# Linpy is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Linpy is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Linpy. If not, see <http://www.gnu.org/licenses/>.
+
import unittest
from ..domains import *
self.complement = Or(Ge(-x - 1, 0), Ge(x - 3, 0), And(Ge(x, 0), Ge(-x + 2, 0), Ge(-y - 1, 0)), And(Ge(x, 0), Ge(-x + 2, 0), Ge(y - 3, 0)))
self.hull = And(Ge(x, 0), Ge(-x + 2, 0), Ge(y, 0), Ge(-y + 2, 0))
self.dropped = And(Ge(y, 0), Ge(-y + 2, 0))
- self.sample = And(Eq(y - 3, 0), Eq(x - 1, 0))
self.intersection = And(Ge(x - 1, 0), Ge(-x + 2, 0), Ge(y - 1, 0), Ge(-y + 2, 0))
self.union = Or(And(Ge(x, 0), Ge(-x + 2, 0), Ge(y, 0), Ge(-y + 2, 0)), And(Ge(x - 1, 0), Ge(-x + 3, 0), Ge(y - 1, 0), Ge(-y + 3, 0)))
self.sum1 = Or(And(Ge(x, 0), Ge(-x + 2, 0), Ge(y, 0), Ge(-y + 2, 0)), And(Ge(x - 1, 0), Ge(-x + 3, 0), Ge(y - 1, 0), Ge(-y + 3, 0)))
self.assertEqual(~self.universe, Empty)
self.assertEqual(~self.empty, self.universe)
- def test_polyhedral_hull(self):
- self.assertEqual(self.square1.polyhedral_hull(), self.hull)
- self.assertEqual(self.universe.polyhedral_hull(), self.universe)
- self.assertEqual(self.empty.polyhedral_hull(), self.empty)
+ def test_aspolyhedron(self):
+ self.assertEqual(self.square1.aspolyhedron(), self.hull)
+ self.assertEqual(self.universe.aspolyhedron(), self.universe)
+ self.assertEqual(self.empty.aspolyhedron(), self.empty)
def test_project(self):
self.assertEqual(self.square1.project(symbols('x')), self.dropped)
self.assertEqual(self.empty.simplify(), Empty)
def test_sample(self):
- self.assertEqual(self.square6.sample(), self.sample)
- self.assertEqual(self.empty.sample(), Empty)
- self.assertEqual(self.universe.sample(), self.universe)
+ self.assertEqual(self.square6.sample(), {Symbol('x'): 1, Symbol('y'): 3})
+ with self.assertRaises(ValueError):
+ self.empty.sample()
+ self.assertEqual(self.universe.sample(), {})
def test_intersection(self):
self.assertEqual(self.square1.intersection(self.square2), self.intersection)