X-Git-Url: https://svn.cri.ensmp.fr/git/linpy.git/blobdiff_plain/3f3ec5755dc4b96250b8bd09be9bede967d7203d..d585b06ccf67b2837519f4b48c6800dcdb924d9d:/linpy/tests/test_domains.py

diff --git a/linpy/tests/test_domains.py b/linpy/tests/test_domains.py
index 0955a09..2d30b8b 100644
--- a/linpy/tests/test_domains.py
+++ b/linpy/tests/test_domains.py
@@ -17,9 +17,9 @@
 
 import unittest
 
-from ..domains import *
+from ..domains import And, Or
 from ..linexprs import Symbol, symbols
-from ..polyhedra import *
+from ..polyhedra import Empty, Eq, Ge, Polyhedron
 
 
 class TestDomain(unittest.TestCase):
@@ -27,23 +27,33 @@ class TestDomain(unittest.TestCase):
     def setUp(self):
         x, y = symbols('x y')
         self.square1 = Polyhedron(inequalities=[x, 2 - x, y, 2 - y])
-        self.square2 = Polyhedron(inequalities=[x - 1, 3 - x , y - 1, 3 - y]) #correct representation
+        self.square2 = Polyhedron(inequalities=[x - 1, 3 - x, y - 1, 3 - y])
         self.square3 = Polyhedron(inequalities=[x, 3 - x, y, 3 - y])
         self.square4 = Polyhedron(inequalities=[x - 1, 2 - x, y - 1, 2 - y])
-        self.square5 = Polyhedron(inequalities=[x - 3, 6 - x, y - 3, 6 -y])
-        self.square6 = Polyhedron(equalities=[3 - y], inequalities=[x - 1, 3 - x, y - 1])
+        self.square5 = Polyhedron(inequalities=[x - 3, 6 - x, y - 3, 6 - y])
+        self.square6 = Polyhedron(equalities=[3 - y],
+                                  inequalities=[x - 1, 3 - x, y - 1])
         self.unbound_poly = Polyhedron(inequalities=[x, 3 - x, y])
         self.universe = Polyhedron([])
         self.empty = Empty
         self.disjoint = And(Ge(x, 0), Ge(-x + 2, 0), Ge(y, 0), Ge(-y + 2, 0))
-        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.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.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.sum2 =And(Ge(x, 0), Ge(y, 0), Ge(-y + 3, 0), Ge(-x + 3, 0), Ge(x - y + 2, 0), Ge(-x + y + 2, 0))
-        self.difference1 = Or(And(Eq(x - 3, 0), Ge(y - 1, 0), Ge(-y + 3, 0)), And(Eq(y - 3, 0), Ge(x - 1, 0), Ge(-x + 2, 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.sum2 = And(Ge(x, 0), Ge(y, 0), Ge(-y + 3, 0), Ge(-x + 3, 0),
+                        Ge(x - y + 2, 0), Ge(-x + y + 2, 0))
+        self.difference1 = Or(And(Eq(x - 3, 0), Ge(y - 1, 0), Ge(-y + 3, 0)),
+                              And(Eq(y - 3, 0), Ge(x - 1, 0), Ge(-x + 2, 0)))
         self.difference2 = And(Ge(x + y - 4, 0), Ge(-x + 3, 0), Ge(-y + 3, 0))
         self.lexmin = And(Eq(y, 0), Eq(x, 0))
         self.lexmax = And(Eq(y - 2, 0), Eq(x - 2, 0))
@@ -116,13 +126,15 @@ class TestDomain(unittest.TestCase):
         self.assertEqual(self.empty.project([]), Empty)
 
     def test_sample(self):
-        self.assertEqual(self.square6.sample(), {Symbol('x'): 1, Symbol('y'): 3})
+        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)
+        self.assertEqual(self.square1.intersection(self.square2),
+                         self.intersection)
 
     def test_and(self):
         self.assertEqual(self.square2 & self.square1, self.intersection)
@@ -151,7 +163,8 @@ class TestDomain(unittest.TestCase):
 
     def test_difference(self):
         self.assertEqual(self.square2 - self.square1, self.difference1)
-        self.assertEqual(Polyhedron(self.square2 - self.square1), self.difference2)
+        self.assertEqual(Polyhedron(self.square2 - self.square1),
+                         self.difference2)
         self.assertEqual(self.square2 - self.square2, Empty)
         self.assertEqual(self.universe - self.universe, Empty)