def test_split_16to8_big(self):
r = Repacker(Endian.BIG, 16, 8)
self.assertEqual(r.repack_unit, 16)
self.assertEqual(r.repack_size(3), 2)
self.assertEqual(r.repackable_size(3), 6)
a = BinData(16, [0x1234, 0x5678, 0x9abc])
b = r.repack(a, 1, 3)
self.assertEqual(b, BinData.from_spaced_hex(8, '56 78 9a'))
def test_padded_8to23_mixed_big(self):
r = Repacker(Endian.BIG, 8, 23, low_pad=8, high_pad=1)
self.assertEqual(r.repack_unit, 32)
self.assertEqual(r.repack_size(2), 8)
self.assertEqual(r.repackable_size(7), 1)
self.assertEqual(r.repackable_size(8), 2)
a = BinData.from_spaced_hex(8, '11 22 33 44 55 66 77 88 99 aa')
b = r.repack(a, 1, 2)
self.assertEqual(b, BinData.from_spaced_hex(23, '223344 667788'))
def test_padded_8to23_right_little(self):
r = Repacker(Endian.LITTLE, 8, 23, low_pad=9)
self.assertEqual(r.repack_unit, 32)
self.assertEqual(r.repack_size(2), 8)
self.assertEqual(r.repackable_size(7), 1)
self.assertEqual(r.repackable_size(8), 2)
a = BinData.from_spaced_hex(8, '11 22 33 44 55 66 77 88 99 aa')
b = r.repack(a, 1, 2)
self.assertEqual(b, BinData.from_spaced_hex(23, '2aa219 4cc43b'))
def test_gather_8to16_big(self):
r = Repacker(endian=Endian.BIG, from_width=8, to_width=16)
self.assertEqual(r.repack_unit, 16)
self.assertEqual(r.repack_size(2), 4)
self.assertEqual(r.repackable_size(2), 1)
self.assertEqual(r.repackable_size(3), 1)
self.assertEqual(r.repackable_size(4), 2)
a = BinData(8, [1, 2, 3, 4, 5, 6])
b = r.repack(a, start=1, num_elements=2)
self.assertEqual(b, BinData.from_spaced_hex(16, '0203 0405'))
c = r.repack(a, start=1)
self.assertEqual(b, c)
d = r.repack(a)
self.assertEqual(d, BinData.from_spaced_hex(16, '0102 0304 0506'))
def test_split_8to1_little(self):
r = Repacker(Endian.LITTLE, 8, 1)
self.assertEqual(r.repack_unit, 8)
self.assertEqual(r.repack_size(12), 2)
self.assertEqual(r.repack_size(8), 1)
self.assertEqual(r.repack_size(9), 2)
self.assertEqual(r.repack_size(17), 3)
self.assertEqual(r.repackable_size(1), 8)
a = BinData.from_spaced_hex(8, '12 34 56')
b = r.repack(a, 1, 12)
c = BinData.from_spaced_hex(1, ' '.join(format(0x634, '012b')[::-1]))
self.assertEqual(b, c)
def test_mash_8to12_big(self):
r = Repacker(Endian.BIG, 8, 12)
self.assertEqual(r.repack_unit, 24)
self.assertEqual(r.repack_size(1), 2)
self.assertEqual(r.repack_size(2), 3)
self.assertEqual(r.repackable_size(1), 0)
self.assertEqual(r.repackable_size(2), 1)
self.assertEqual(r.repackable_size(3), 2)
self.assertEqual(r.repackable_size(4), 2)
a = BinData.from_spaced_hex(8, '12 34 56 78 9a')
b = r.repack(a, 1, 2)
self.assertEqual(b, BinData.from_spaced_hex(12, '345 678'))
c = r.repack(a, 1)
self.assertEqual(b, c)
d = r.repack(a)
self.assertEqual(d, BinData.from_spaced_hex(12, '123 456 789'))
def test_mash_8to12_little(self):
r = Repacker(Endian.LITTLE, 8, 12)
self.assertEqual(r.repack_unit, 24)
self.assertEqual(r.repack_size(1), 2)
self.assertEqual(r.repack_size(2), 3)
self.assertEqual(r.repackable_size(1), 0)
self.assertEqual(r.repackable_size(2), 1)
self.assertEqual(r.repackable_size(3), 2)
self.assertEqual(r.repackable_size(4), 2)
a = BinData.from_spaced_hex(8, '12 34 56 78 9a')
b = r.repack(a, 1, 2)
self.assertEqual(b, BinData.from_spaced_hex(12, '634 785'))
c = r.repack(a, 1)
self.assertEqual(b, c)
d = r.repack(a)
self.assertEqual(d, BinData.from_spaced_hex(12, '412 563 a78'))
def test_simple_copy(self):
r = Repacker(endian=Endian.LITTLE, from_width=8, to_width=8)
self.assertEqual(r.repack_unit, 8)
self.assertEqual(r.repack_size(num_elements=2), 2)
self.assertEqual(r.repackable_size(from_size=2), 2)
a = BinData(8, [1, 2, 3, 4])
b = r.repack(a, start=1, num_elements=2)
self.assertEqual(b, BinData(8, [2, 3]))
self.assertEqual(r.repack(a), a)
def test_split_60to20_big(self):
r = Repacker(Endian.BIG, 60, 20)
self.assertEqual(r.repack_unit, 60)
self.assertEqual(r.repack_size(1), 1)
self.assertEqual(r.repack_size(2), 1)
self.assertEqual(r.repack_size(3), 1)
self.assertEqual(r.repack_size(4), 2)
self.assertEqual(r.repackable_size(1), 3)
a = BinData(60, [0xfedcba987654321])
b = r.repack(a)
self.assertEqual(b, BinData.from_spaced_hex(20, 'fedcb a9876 54321'))