| 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 | |
| Tim Peters | c15a828 | 2001-08-27 21:45:32 +0000 | [diff] [blame^] | 30 | def test_no_overflow(self): |
| 31 | nines = "9" * 32 |
| 32 | self.assert_(eval("+" + nines) == eval("+" + nines + "L")) |
| 33 | self.assert_(eval("-" + nines) == eval("-" + nines + "L")) |
| 34 | self.assert_(eval("~" + nines) == eval("~" + nines + "L")) |
| Jeremy Hylton | 08a6403 | 2001-08-12 02:22:27 +0000 | [diff] [blame] | 35 | |
| 36 | def test_bad_types(self): |
| 37 | for op in '+', '-', '~': |
| 38 | self.assertRaises(TypeError, eval, op + "'a'") |
| 39 | self.assertRaises(TypeError, eval, op + "u'a'") |
| 40 | |
| 41 | self.assertRaises(TypeError, eval, "~2j") |
| 42 | self.assertRaises(TypeError, eval, "~2.0") |
| 43 | |
| 44 | run_unittest(UnaryOpTestCase) |