+"""
+ 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
self.expr = self.x - 2*self.y + 3
def test_new(self):
- self.assertIsInstance(self.x, Symbol)
- self.assertIsInstance(self.pi, Constant)
+ self.assertIsInstance(Expression(coefficients={self.x: 1}), Symbol)
+ self.assertIsInstance(Expression(constant=self.pi), Rational)
self.assertNotIsInstance(self.x + self.pi, Symbol)
- self.assertNotIsInstance(self.x + self.pi, Constant)
+ self.assertNotIsInstance(self.x + self.pi, Rational)
xx = Expression({self.x: 2})
self.assertNotIsInstance(xx, Symbol)
with self.assertRaises(TypeError):
self.expr[self.expr]
def test_coefficients(self):
- self.assertCountEqual(self.expr.coefficients(), [(self.x, 1), (self.y, -2)])
+ self.assertListEqual(list(self.expr.coefficients()), [(self.x, 1), (self.y, -2)])
def test_constant(self):
self.assertEqual(self.x.constant, 0)
self.assertEqual(self.expr.constant, 3)
def test_symbols(self):
- self.assertCountEqual(self.x.symbols, [self.x])
- self.assertCountEqual(self.pi.symbols, [])
- self.assertCountEqual(self.expr.symbols, [self.x, self.y])
+ self.assertTupleEqual(self.x.symbols, (self.x,))
+ self.assertTupleEqual(self.pi.symbols, ())
+ self.assertTupleEqual(self.expr.symbols, (self.x, self.y))
def test_dimension(self):
self.assertEqual(self.x.dimension, 1)
self.assertFalse(self.expr.issymbol())
def test_values(self):
- self.assertCountEqual(self.expr.values(), [1, -2, 3])
+ self.assertListEqual(list(self.expr.values()), [1, -2, 3])
def test_bool(self):
self.assertTrue(self.x)
self.assertEqual(self.expr * 0, 0)
self.assertEqual(0 * self.expr, 0)
self.assertEqual(self.expr * 2, 2*self.x - 4*self.y + 6)
+ with self.assertRaises(TypeError):
+ self.x * self.x
def test_truediv(self):
with self.assertRaises(ZeroDivisionError):
self.expr / 0
self.assertEqual(self.expr / 2, self.x / 2 - self.y + Fraction(3, 2))
+ with self.assertRaises(TypeError):
+ self.x / self.x
def test_eq(self):
self.assertEqual(self.expr, self.expr)
with self.assertRaises(TypeError):
Symbol.fromsympy(sp_x*sp_x)
- def test_symbols(self):
- self.assertListEqual(list(symbols('x y')), [self.x, self.y])
- self.assertListEqual(list(symbols('x,y')), [self.x, self.y])
- self.assertListEqual(list(symbols(['x', 'y'])), [self.x, self.y])
+class TestDummy(unittest.TestCase):
+
+ def setUp(self):
+ self.x = Dummy('x')
+
+ def test_new(self):
+ self.assertEqual(self.x.name, 'x')
+ self.assertTrue(Dummy().name.startswith('Dummy'))
+
+ def test_eq(self):
+ self.assertEqual(self.x, self.x)
+ self.assertNotEqual(self.x, Symbol('x'))
+ self.assertNotEqual(Symbol('x'), self.x)
+ self.assertNotEqual(self.x, Dummy('x'))
+ self.assertNotEqual(Dummy(), Dummy())
+
+ def test_repr(self):
+ self.assertEqual(repr(self.x), '_x')
+ dummy1 = Dummy()
+ dummy2 = Dummy()
+ self.assertTrue(repr(dummy1).startswith('_Dummy_'))
+ self.assertNotEqual(repr(dummy1), repr(dummy2))
-class TestConstant(unittest.TestCase):
+
+class TestSymbols(unittest.TestCase):
def setUp(self):
- self.zero = Constant(0)
- self.one = Constant(1)
- self.pi = Constant(Fraction(22, 7))
+ self.x = Symbol('x')
+ self.y = Symbol('y')
+
+ def test(self):
+ self.assertTupleEqual(symbols('x y'), (self.x, self.y))
+ self.assertTupleEqual(symbols('x,y'), (self.x, self.y))
+ self.assertTupleEqual(symbols(['x', 'y']), (self.x, self.y))
+ with self.assertRaises(TypeError):
+ symbols(1)
+ with self.assertRaises(TypeError):
+ symbols(['a', 1])
+
+
+class TestRational(unittest.TestCase):
+
+ def setUp(self):
+ self.zero = Rational(0)
+ self.one = Rational(1)
+ self.pi = Rational(22, 7)
def test_new(self):
- self.assertEqual(Constant(), self.zero)
- self.assertEqual(Constant(1), self.one)
- self.assertEqual(Constant(self.pi), self.pi)
- self.assertEqual(Constant('22/7'), self.pi)
+ self.assertEqual(Rational(), self.zero)
+ self.assertEqual(Rational(1), self.one)
+ self.assertEqual(Rational(self.pi), self.pi)
+ self.assertEqual(Rational('22/7'), self.pi)
+
+ def test_hash(self):
+ self.assertEqual(hash(self.one), hash(1))
+ self.assertEqual(hash(self.pi), hash(Fraction(22, 7)))
def test_isconstant(self):
self.assertTrue(self.zero.isconstant())
self.assertFalse(self.zero)
self.assertTrue(self.pi)
- def test_fromstring(self):
- self.assertEqual(Constant.fromstring('22/7'), self.pi)
- with self.assertRaises(ValueError):
- Constant.fromstring('a')
- with self.assertRaises(TypeError):
- Constant.fromstring(1)
-
def test_repr(self):
self.assertEqual(repr(self.zero), '0')
self.assertEqual(repr(self.one), '1')
@requires_sympy
def test_fromsympy(self):
import sympy
- self.assertEqual(Constant.fromsympy(sympy.Rational(22, 7)), self.pi)
+ self.assertEqual(Rational.fromsympy(sympy.Rational(22, 7)), self.pi)
with self.assertRaises(TypeError):
- Constant.fromsympy(sympy.Symbol('x'))
+ Rational.fromsympy(sympy.Symbol('x'))
+
+# Copyright 2014 MINES ParisTech
projects / linpy.git / blobdiff