diff options
Diffstat (limited to 'Lib/test/test_long.py')
| -rw-r--r-- | Lib/test/test_long.py | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/Lib/test/test_long.py b/Lib/test/test_long.py index 4b2d81c98a..fd15f04ace 100644 --- a/Lib/test/test_long.py +++ b/Lib/test/test_long.py @@ -621,6 +621,8 @@ class LongTest(unittest.TestCase): def test__format__(self): self.assertEqual(format(123456789, 'd'), '123456789') self.assertEqual(format(123456789, 'd'), '123456789') + self.assertEqual(format(123456789, ','), '123,456,789') + self.assertEqual(format(123456789, '_'), '123_456_789') # sign and aligning are interdependent self.assertEqual(format(1, "-"), '1') @@ -649,8 +651,25 @@ class LongTest(unittest.TestCase): self.assertEqual(format(int('be', 16), "X"), "BE") self.assertEqual(format(-int('be', 16), "x"), "-be") self.assertEqual(format(-int('be', 16), "X"), "-BE") + self.assertRaises(ValueError, format, 1234567890, ',x') + self.assertEqual(format(1234567890, '_x'), '4996_02d2') + self.assertEqual(format(1234567890, '_X'), '4996_02D2') # octal + self.assertEqual(format(3, "o"), "3") + self.assertEqual(format(-3, "o"), "-3") + self.assertEqual(format(1234, "o"), "2322") + self.assertEqual(format(-1234, "o"), "-2322") + self.assertEqual(format(1234, "-o"), "2322") + self.assertEqual(format(-1234, "-o"), "-2322") + self.assertEqual(format(1234, " o"), " 2322") + self.assertEqual(format(-1234, " o"), "-2322") + self.assertEqual(format(1234, "+o"), "+2322") + self.assertEqual(format(-1234, "+o"), "-2322") + self.assertRaises(ValueError, format, 1234567890, ',o') + self.assertEqual(format(1234567890, '_o'), '111_4540_1322') + + # binary self.assertEqual(format(3, "b"), "11") self.assertEqual(format(-3, "b"), "-11") self.assertEqual(format(1234, "b"), "10011010010") @@ -661,12 +680,21 @@ class LongTest(unittest.TestCase): self.assertEqual(format(-1234, " b"), "-10011010010") self.assertEqual(format(1234, "+b"), "+10011010010") self.assertEqual(format(-1234, "+b"), "-10011010010") + self.assertRaises(ValueError, format, 1234567890, ',b') + self.assertEqual(format(12345, '_b'), '11_0000_0011_1001') # make sure these are errors self.assertRaises(ValueError, format, 3, "1.3") # precision disallowed + self.assertRaises(ValueError, format, 3, "_c") # underscore, + self.assertRaises(ValueError, format, 3, ",c") # comma, and self.assertRaises(ValueError, format, 3, "+c") # sign not allowed # with 'c' + self.assertRaisesRegex(ValueError, 'Cannot specify both', format, 3, '_,') + self.assertRaisesRegex(ValueError, 'Cannot specify both', format, 3, ',_') + self.assertRaisesRegex(ValueError, 'Cannot specify both', format, 3, '_,d') + self.assertRaisesRegex(ValueError, 'Cannot specify both', format, 3, ',_d') + # ensure that only int and float type specifiers work for format_spec in ([chr(x) for x in range(ord('a'), ord('z')+1)] + [chr(x) for x in range(ord('A'), ord('Z')+1)]): @@ -689,6 +717,20 @@ class LongTest(unittest.TestCase): self.assertRaises(OverflowError, int, float('-inf')) self.assertRaises(ValueError, int, float('nan')) + def test_mod_division(self): + with self.assertRaises(ZeroDivisionError): + _ = 1 % 0 + + self.assertEqual(13 % 10, 3) + self.assertEqual(-13 % 10, 7) + self.assertEqual(13 % -10, -7) + self.assertEqual(-13 % -10, -3) + + self.assertEqual(12 % 4, 0) + self.assertEqual(-12 % 4, 0) + self.assertEqual(12 % -4, 0) + self.assertEqual(-12 % -4, 0) + def test_true_division(self): huge = 1 << 40000 mhuge = -huge @@ -723,6 +765,25 @@ class LongTest(unittest.TestCase): for zero in ["huge / 0", "mhuge / 0"]: self.assertRaises(ZeroDivisionError, eval, zero, namespace) + def test_floordiv(self): + with self.assertRaises(ZeroDivisionError): + _ = 1 // 0 + + self.assertEqual(2 // 3, 0) + self.assertEqual(2 // -3, -1) + self.assertEqual(-2 // 3, -1) + self.assertEqual(-2 // -3, 0) + + self.assertEqual(-11 // -3, 3) + self.assertEqual(-11 // 3, -4) + self.assertEqual(11 // -3, -4) + self.assertEqual(11 // 3, 3) + + self.assertEqual(-12 // -3, 4) + self.assertEqual(-12 // 3, -4) + self.assertEqual(12 // -3, -4) + self.assertEqual(12 // 3, 4) + def check_truediv(self, a, b, skip_small=True): """Verify that the result of a/b is correctly rounded, by comparing it with a pure Python implementation of correctly @@ -845,6 +906,21 @@ class LongTest(unittest.TestCase): self.check_truediv(-x, y) self.check_truediv(-x, -y) + def test_lshift_of_zero(self): + self.assertEqual(0 << 0, 0) + self.assertEqual(0 << 10, 0) + with self.assertRaises(ValueError): + 0 << -1 + + @support.cpython_only + def test_huge_lshift_of_zero(self): + # Shouldn't try to allocate memory for a huge shift. See issue #27870. + # Other implementations may have a different boundary for overflow, + # or not raise at all. + self.assertEqual(0 << sys.maxsize, 0) + with self.assertRaises(OverflowError): + 0 << (sys.maxsize + 1) + def test_small_ints(self): for i in range(-5, 257): self.assertIs(i, i + 0) |