X-Git-Url: https://svn.cri.ensmp.fr/git/linpy.git/blobdiff_plain/841943174bb4d3b602e8e055592d8b54d1bb086d..d9d050a1a44fd98d3f4553aeff16a0aa60ca8755:/tests/test_isl.py diff --git a/tests/test_isl.py b/tests/test_isl.py index 7186dad..21374b5 100644 --- a/tests/test_isl.py +++ b/tests/test_isl.py @@ -1,4 +1,3 @@ - import unittest from math import floor, ceil, trunc @@ -12,188 +11,3 @@ class TestContext(unittest.TestCase): ctx1, ctx2 = Context(), Context() self.assertEqual(ctx1, ctx1) self.assertNotEqual(ctx1, ctx2) - - -class TestValue(unittest.TestCase): - - def setUp(self): - self.context = Context() - self.zero = Value(self.context) - self.nan = Value(self.context, 'NaN') - self.inf = Value(self.context, 'Inf') - self.neginf = Value(self.context, '-Inf') - self.answer = Value(self.context, 42) - self.pi = Value(self.context, 22, 7) - - def test_init(self): - self.assertEqual(Value(self.context, 42), self.answer) - self.assertEqual(Value(self.context, '42'), self.answer) - self.assertEqual(Value(self.context, 22, 7), self.pi) - self.assertEqual(Value(self.context, '-22/7'), -self.pi) - self.assertTrue(Value(self.context, 'nan').is_nan()) - self.assertTrue(Value(self.context, '-nan').is_nan()) - self.assertTrue(Value(self.context, 'NaN').is_nan()) - self.assertEqual(Value(self.context, '-inf'), self.neginf) - self.assertEqual(Value(self.context, '-Infinity'), self.neginf) - - def test_numerator(self): - self.assertEqual(self.zero.numerator, 0) - self.assertEqual(self.answer.numerator, 42) - self.assertEqual(self.pi.numerator, 22) - with self.assertRaises(ValueError): - self.nan.numerator - with self.assertRaises(ValueError): - self.inf.numerator - - def test_denominator(self): - self.assertEqual(self.zero.denominator, 1) - self.assertEqual(self.answer.denominator, 1) - self.assertEqual(self.pi.denominator, 7) - with self.assertRaises(ValueError): - self.nan.denominator - with self.assertRaises(ValueError): - self.inf.denominator - - def test_bool(self): - self.assertFalse(self.zero) - self.assertTrue(self.answer) - self.assertTrue(self.pi) - self.assertEqual(bool(self.nan), bool(float('nan'))) - self.assertEqual(bool(self.inf), bool(float('inf'))) - - def test_lt(self): - self.assertTrue(self.neginf < self.zero) - self.assertTrue(self.zero < self.pi) - self.assertTrue(self.pi < self.answer) - self.assertTrue(self.answer < self.inf) - self.assertFalse(self.nan < self.answer) - self.assertFalse(self.nan < self.inf) - self.assertFalse(self.nan < self.neginf) - self.assertTrue(self.neginf < self.inf) - - def test_le(self): - self.assertTrue(self.pi <= self.pi) - self.assertTrue(self.pi <= self.answer) - self.assertFalse(self.answer <= self.pi) - - def test_gt(self): - self.assertFalse(self.pi > self.pi) - self.assertTrue(self.answer > self.pi) - self.assertFalse(self.pi > self.answer) - - def test_ge(self): - self.assertTrue(self.pi >= self.pi) - self.assertTrue(self.answer >= self.pi) - self.assertFalse(self.pi >= self.answer) - - def test_eq(self): - self.assertEqual(self.pi, self.pi) - self.assertEqual(self.inf, self.inf) - self.assertNotEqual(self.neginf, self.inf) - self.assertNotEqual(self.nan, self.nan) - self.assertEqual(self.zero, 0) - self.assertEqual(0, self.zero) - self.assertEqual(self.pi, Fraction(22, 7)) - self.assertEqual(Fraction(22, 7), self.pi) - with self.assertRaises(TypeError): - self.zero == 0. - - def test_ne(self): - self.assertTrue(self.pi != self.answer) - self.assertFalse(self.pi != self.pi) - self.assertTrue(self.neginf != self.inf) - self.assertTrue(self.nan != self.nan) - - def test_abs(self): - self.assertEqual(abs(self.pi), self.pi) - self.assertEqual(abs(self.neginf), self.inf) - self.assertEqual(abs(-self.pi), self.pi) - self.assertTrue(abs(self.nan).is_nan()) - - def test_pos(self): - self.assertEqual(+self.pi, self.pi) - - def test_neg(self): - self.assertEqual(-self.neginf, self.inf) - self.assertEqual(-(-self.pi), self.pi) - - def test_floor(self): - self.assertEqual(floor(self.pi), Value(self.context, 3)) - self.assertEqual(floor(-self.pi), Value(self.context, -4)) - # not float behavior, but makes sense - self.assertEqual(floor(self.inf), self.inf) - self.assertTrue(floor(self.nan).is_nan()) - - def test_ceil(self): - self.assertEqual(ceil(self.pi), Value(self.context, 4)) - self.assertRaises(ceil(-self.pi) == Value(self.context, -3)) - - def test_trunc(self): - self.assertEqual(trunc(self.pi), Value(self.context, 3)) - self.assertEqual(trunc(-self.pi), Value(self.context, -3)) - - def test_add(self): - self.assertEqual(self.answer + self.answer, Value(self.context, 84)) - self.assertEqual(self.answer + self.pi, Value(self.context, 316, 7)) - self.assertEqual(self.pi + self.pi, Value(self.context, 44, 7)) - self.assertEqual(self.pi + self.neginf, self.neginf) - self.assertEqual(self.pi + self.inf, self.inf) - self.assertTrue((self.pi + self.nan).is_nan()) - self.assertTrue((self.inf + self.nan).is_nan()) - self.assertTrue((self.inf + self.neginf).is_nan()) - self.assertEqual(self.pi + 42, Value(self.context, 316, 7)) - self.assertEqual(42 + self.pi, Value(self.context, 316, 7)) - self.assertEqual(self.pi + Fraction(22, 7), Value(self.context, 44, 7)) - with self.assertRaises(TypeError): - self.pi + float(42) - - def test_sub(self): - self.assertEqual(self.answer - self.pi, Value(self.context, 272, 7)) - - def test_mul(self): - self.assertEqual(Value(self.context, 6) * Value(self.context, 7), self.answer) - self.assertNotEqual(Value(self.context, 6) * Value(self.context, 9), self.answer) - self.assertEqual(self.inf * Value(self.context, 2), self.inf) - self.assertEqual(self.inf * Value(self.context, -2), self.neginf) - self.assertTrue((self.nan * Value(self.context, 2)).is_nan()) - self.assertTrue((self.nan * self.inf).is_nan()) - - def test_div(self): - self.assertEqual(Value(self.context, 22) / Value(self.context, 7), self.pi) - self.assertEqual(self.pi / self.pi, Value(self.context, 1)) - # not float behavior, but makes sense - self.assertTrue((self.pi / self.zero).is_nan()) - - def test_float(self): - self.assertAlmostEqual(float(Value(self.context, 1, 2)), 0.5) - self.assertTrue(math.isnan(float(Value(self.context, 'NaN')))) - self.assertAlmostEqual(float(Value(self.context, 'Inf')), float('inf')) - - def test_is_finite(self): - self.assertTrue(self.pi.is_finite()) - self.assertFalse(self.inf.is_finite()) - self.assertFalse(self.nan.is_finite()) - - def test_is_infinite(self): - self.assertFalse(self.pi.is_infinite()) - self.assertTrue(self.inf.is_infinite()) - self.assertFalse(self.nan.is_infinite()) - - def test_is_nan(self): - self.assertFalse(self.pi.is_nan()) - self.assertFalse(self.inf.is_nan()) - self.assertTrue(self.nan.is_nan()) - - def test_str(self): - self.assertEqual(str(self.answer), '42') - self.assertEqual(str(self.pi), '22/7') - self.assertEqual(str(self.nan), 'NaN') - self.assertEqual(str(self.inf), 'Infinity') - self.assertEqual(str(self.neginf), '-Infinity') - - def test_repr(self): - self.assertEqual(repr(self.answer), "Value('42')") - self.assertEqual(repr(self.pi), "Value('22/7')") - self.assertEqual(repr(self.nan), "Value('NaN')") - self.assertEqual(repr(self.inf), "Value('Infinity')") - self.assertEqual(repr(self.neginf), "Value('-Infinity')")