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from UnitTest import UnitTest
class LongTest(UnitTest):
def testAdd(self):
x = 0L
y = 1L
x += y
self.assertTrue(x == 1L)
def testType(self):
# int shifted up ends up as a long
x = 1<<64
self.assertTrue(x == 18446744073709551616L, "#302 - %s != 18446744073709551616L" % repr(x))
self.assertTrue(isinstance(x, long))
# long shifted up is still a long
x = 1L<<64
self.assertTrue(x == 18446744073709551616L, "%s != 18446744073709551616L" % repr(x))
self.assertTrue(isinstance(x, long))
x = 1<<20
self.assertTrue(x == 1048576, "%s != 1048576" % repr(x))
self.assertTrue(isinstance(x, int))
x = 1L<<20
self.assertTrue(x == 1048576L, "%s != 1048576L" % repr(x))
self.assertTrue(isinstance(x, long))
self.assertTrue(int(18446744073709551616) is 18446744073709551616L, "No automatic int to long conversion")
if int(18446744073709551616) == 18446744073709551616L:
# We do have long type
x = 1<<64
self.assertEqual(x, 18446744073709551616L)
x = 0x7fffffff + 1
self.assertEqual(x, 2147483648L)
x = 0x7fffffff + 0x7fffffff
self.assertEqual(x, 4294967294L)
x = -0x7fffffff - 2
self.assertEqual(x, -2147483649L)
x = -0x7fffffff - 0x7fffffff
self.assertEqual(x, -4294967294)
x = 0x7fffffff * 2
self.assertEqual(x, 4294967294)
x = 0x7fffffff * -2
self.assertEqual(x, -4294967294)
x = 0x7ffff ** 2
self.assertEqual(x, 274876858369)
self.assertEqual(1 << 2L, 4L)
self.assertEqual(6 >> 2L, 1L)
x = 1
x <<= 3L
self.assertEqual(x, 8L)
x = 8
x >>= 1L
self.assertEqual(x, 4L)