Add GPL License

[linpy.git] / pypol / tests / test_polyhedra.py

diff --git a/pypol/tests/test_polyhedra.py b/pypol/tests/test_polyhedra.py
index c74e25f..066e3d1 100644 (file)
--- a/pypol/tests/test_polyhedra.py
+++ b/pypol/tests/test_polyhedra.py
@@ -1,23 +1,26 @@
+"""
+    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 functools
 import unittest
 
 from ..linexprs import symbols
 from ..polyhedra import *
-
-
-try:
-    import sympy
-    def _requires_sympy(func):
-        @functools.wraps(func)
-        def wrapper(self):
-            return func(self)
-        return wrapper
-except ImportError:
-    def _requires_sympy(func):
-        @functools.wraps(func)
-        def wrapper(self):
-            raise unittest.SkipTest('SymPy is not available')
-        return wrapper
+from .libhelper import requires_sympy
 
 
 class TestPolyhedron(unittest.TestCase):
@@ -27,7 +30,7 @@ class TestPolyhedron(unittest.TestCase):
         self.square = Polyhedron(inequalities=[x, 1 - x, y, 1 - y])
 
     def test_symbols(self):
-        self.assertCountEqual(self.square.symbols, ['x', 'y'])
+        self.assertTupleEqual(self.square.symbols, symbols('x y'))
 
     def test_dimension(self):
         self.assertEqual(self.square.dimension, 2)
@@ -50,14 +53,16 @@ class TestPolyhedron(unittest.TestCase):
     def test_isuniverse(self):
         self.assertFalse(self.square.isuniverse())
 
-    @_requires_sympy
+    @requires_sympy
     def test_fromsympy(self):
+        import sympy
         sp_x, sp_y = sympy.symbols('x y')
         self.assertEqual(Polyhedron.fromsympy((sp_x >= 0) & (sp_x <= 1) &
             (sp_y >= 0) & (sp_y <= 1)), self.square)
 
-    @_requires_sympy
+    @requires_sympy
     def test_tosympy(self):
+        import sympy
         sp_x, sp_y = sympy.symbols('x y')
         self.assertEqual(self.square.tosympy(),
             sympy.And(-sp_x + 1 >= 0, -sp_y + 1 >= 0, sp_x >= 0, sp_y >= 0))
@@ -85,3 +90,5 @@ class TestUniverse:
 
     def test_isuniverse(self):
         self.assertTrue(Universe.isuniverse())
+
+# Copyright 2014 MINES ParisTech