| Jeremy Hylton | 08a6403 | 2001-08-12 02:22:27 +0000 | [diff] [blame^] | 1 | """Test compiler changes for unary ops (+, -, ~) introduced in Python 2.2""" |
| 2 | |
| 3 | import unittest |
| 4 | from test_support import run_unittest |
| 5 | |
| 6 | class UnaryOpTestCase(unittest.TestCase): |
| 7 | |
| 8 | def test_negative(self): |
| 9 | self.assert_(-2 == 0 - 2) |
| 10 | self.assert_(-0 == 0) |
| 11 | self.assert_(--2 == 2) |
| 12 | self.assert_(-2L == 0 - 2L) |
| 13 | self.assert_(-2.0 == 0 - 2.0) |
| 14 | self.assert_(-2j == 0 - 2j) |
| 15 | |
| 16 | def test_positive(self): |
| 17 | self.assert_(+2 == 2) |
| 18 | self.assert_(+0 == 0) |
| 19 | self.assert_(++2 == 2) |
| 20 | self.assert_(+2L == 2L) |
| 21 | self.assert_(+2.0 == 2.0) |
| 22 | self.assert_(+2j == 2j) |
| 23 | |
| 24 | def test_invert(self): |
| 25 | self.assert_(-2 == 0 - 2) |
| 26 | self.assert_(-0 == 0) |
| 27 | self.assert_(--2 == 2) |
| 28 | self.assert_(-2L == 0 - 2L) |
| 29 | |
| 30 | def test_overflow(self): |
| 31 | self.assertRaises(OverflowError, eval, "+" + ("9" * 32)) |
| 32 | self.assertRaises(OverflowError, eval, "-" + ("9" * 32)) |
| 33 | self.assertRaises(OverflowError, eval, "~" + ("9" * 32)) |
| 34 | |
| 35 | def test_bad_types(self): |
| 36 | for op in '+', '-', '~': |
| 37 | self.assertRaises(TypeError, eval, op + "'a'") |
| 38 | self.assertRaises(TypeError, eval, op + "u'a'") |
| 39 | |
| 40 | self.assertRaises(TypeError, eval, "~2j") |
| 41 | self.assertRaises(TypeError, eval, "~2.0") |
| 42 | |
| 43 | run_unittest(UnaryOpTestCase) |