def test_byte_length_correctness(self):
numbers = [-12, 12, 1200, 120091, 123456789]
for num in numbers:
if num < 0:
bit_length = len(bin(num, None)) - 1
else:
bit_length = len(bin(num, None))
count = int(math.ceil(bit_length / 8.0))
self.assertEqual(
builtins.integer_byte_length(num), count, "Boom. for number %d, expected %d" % (num, count)
)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting(num), count)
self.assertEqual(_alt_builtins.integer_byte_length_word_aligned(num), count)
self.assertEqual(builtins.integer_byte_length(1 << 1023), 128)
self.assertEqual(builtins.integer_byte_length((1 << 1024) - 1), 128)
self.assertEqual(builtins.integer_byte_length(1 << 1024), 129)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting(1 << 1023), 128)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting((1 << 1024) - 1), 128)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting(1 << 1024), 129)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting(1 << 1023), 128)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting((1 << 1024) - 1), 128)
self.assertEqual(_alt_builtins.integer_byte_length_word_aligned(1 << 1024), 129)
def test_byte_length_correctness(self):
numbers = [-12, 12, 1200, 120091, 123456789]
for num in numbers:
if num < 0:
bit_length = len(bin(num, None)) - 1
else:
bit_length = len(bin(num, None))
count = int(math.ceil(bit_length / 8.0))
self.assertEqual(builtins.integer_byte_length(num), count,
"Boom. for number %d, expected %d" % (num, count))
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting(num), count)
self.assertEqual(_alt_builtins.integer_byte_length_word_aligned(num), count)
self.assertEqual(builtins.integer_byte_length(1 << 1023), 128)
self.assertEqual(builtins.integer_byte_length((1 << 1024) - 1), 128)
self.assertEqual(builtins.integer_byte_length(1 << 1024), 129)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting(1 << 1023), 128)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting((1 << 1024) - 1), 128)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting(1 << 1024), 129)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting(1 << 1023), 128)
self.assertEqual(_alt_builtins.integer_byte_length_shift_counting((1 << 1024) - 1), 128)
self.assertEqual(_alt_builtins.integer_byte_length_word_aligned(1 << 1024), 129)
def test_byte_length_zero_if_zero(self): self.assertEqual(builtins.integer_byte_length(0), 0) self.assertEqual(_alt_builtins.integer_byte_length_shift_counting(0), 0) self.assertEqual(_alt_builtins.integer_byte_length_word_aligned(0), 0)
def test_byte_length_zero_if_zero(self): self.assertEqual(integer_byte_length(0), 0) self.assertEqual(integer_byte_length_shift_counting(0), 0) self.assertEqual(integer_byte_length_word_aligned(0), 0)
