From: Vivien Maisonneuve Date: Mon, 23 Jun 2014 16:27:09 +0000 (+0200) Subject: Unitary tests for Polyhedron, very incomplete X-Git-Tag: 1.0~209 X-Git-Url: https://scm.cri.ensmp.fr/git/linpy.git/commitdiff_plain/34bcb159c06a4725f7a2baaf5ddcc6dffd5d74fe?ds=sidebyside;hp=236157f4861732617ec9078a4364464514bd5b4c Unitary tests for Polyhedron, very incomplete --- diff --git a/tests/test_linear.py b/tests/test_linear.py index 879cc17..f02c4f4 100644 --- a/tests/test_linear.py +++ b/tests/test_linear.py @@ -231,4 +231,39 @@ class TestOperators(unittest.TestCase): class TestPolyhedron(unittest.TestCase): - pass + def setUp(self): + x, y = symbols('x y') + self.square = Polyhedron(inequalities=[x, 1 - x, y, 1 - y]) + + def test_symbols(self): + self.assertCountEqual(self.square.symbols, ['x', 'y']) + + def test_dimension(self): + self.assertEqual(self.square.dimension, 2) + + def test_tostring(self): + self.assertEqual(str(self.square), + '{x >= 0, -x + 1 >= 0, y >= 0, -y + 1 >= 0}') + + def test_fromstring(self): + self.assertEqual(Polyhedron.fromstring('{x >= 0, -x + 1 >= 0, ' + 'y >= 0, -y + 1 >= 0}'), self.square) + + def test_isempty(self): + self.assertFalse(self.square.isempty()) + + def test_isuniverse(self): + self.assertFalse(self.square.isuniverse()) + + @unittest.expectedFailure + @_with_sympy + def test_fromsympy(self): + 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) + + @_with_sympy + def test_tosympy(self): + 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))