| # Python test set -- built-in functions |
| |
| import test.test_support, unittest |
| import sys |
| |
| import warnings |
| warnings.filterwarnings("ignore", "integer argument expected", |
| DeprecationWarning, "unittest") |
| |
| class RangeTest(unittest.TestCase): |
| def test_range(self): |
| self.assertEqual(list(range(3)), [0, 1, 2]) |
| self.assertEqual(list(range(1, 5)), [1, 2, 3, 4]) |
| self.assertEqual(list(range(0)), []) |
| self.assertEqual(list(range(-3)), []) |
| self.assertEqual(list(range(1, 10, 3)), [1, 4, 7]) |
| self.assertEqual(list(range(5, -5, -3)), [5, 2, -1, -4]) |
| |
| a = 10 |
| b = 100 |
| c = 50 |
| |
| self.assertEqual(list(range(a, a+2)), [a, a+1]) |
| self.assertEqual(list(range(a+2, a, -1)), [a+2, a+1]) |
| self.assertEqual(list(range(a+4, a, -2)), [a+4, a+2]) |
| |
| seq = list(range(a, b, c)) |
| self.assert_(a in seq) |
| self.assert_(b not in seq) |
| self.assertEqual(len(seq), 2) |
| |
| seq = list(range(b, a, -c)) |
| self.assert_(b in seq) |
| self.assert_(a not in seq) |
| self.assertEqual(len(seq), 2) |
| |
| seq = list(range(-a, -b, -c)) |
| self.assert_(-a in seq) |
| self.assert_(-b not in seq) |
| self.assertEqual(len(seq), 2) |
| |
| self.assertRaises(TypeError, range) |
| self.assertRaises(TypeError, range, 1, 2, 3, 4) |
| self.assertRaises(ValueError, range, 1, 2, 0) |
| |
| self.assertRaises(TypeError, range, 0.0, 2, 1) |
| self.assertRaises(TypeError, range, 1, 2.0, 1) |
| self.assertRaises(TypeError, range, 1, 2, 1.0) |
| self.assertRaises(TypeError, range, 1e100, 1e101, 1e101) |
| |
| self.assertRaises(TypeError, range, 0, "spam") |
| self.assertRaises(TypeError, range, 0, 42, "spam") |
| |
| self.assertEqual(len(range(0, sys.maxsize, sys.maxsize-1)), 2) |
| |
| r = range(-sys.maxsize, sys.maxsize, 2) |
| self.assertEqual(len(r), sys.maxsize) |
| |
| def test_repr(self): |
| self.assertEqual(repr(range(1)), 'range(0, 1)') |
| self.assertEqual(repr(range(1, 2)), 'range(1, 2)') |
| self.assertEqual(repr(range(1, 2, 3)), 'range(1, 2, 3)') |
| |
| def test_main(): |
| test.test_support.run_unittest(RangeTest) |
| |
| if __name__ == "__main__": |
| test_main() |