linpy/tests/libhelper.py

   1 # Copyright 2014 MINES ParisTech
   2 #
   3 # This file is part of LinPy.
   4 #
   5 # LinPy is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # LinPy is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with LinPy.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 import functools
  19 import importlib
  20 import unittest
  21
  22 try:
  23
  24     importlib.import_module('sympy')
  25
  26     def requires_sympy(func):
  27         @functools.wraps(func)
  28         def wrapper(self):
  29             return func(self)
  30         return wrapper
  31
  32 except ImportError:
  33
  34     def requires_sympy(func):
  35         @functools.wraps(func)
  36         def wrapper(self):
  37             raise unittest.SkipTest('SymPy is not available')
  38         return wrapper