def test_interleaving_001_t(self):
# data is encoded SIGNAL field taken from IEEE 802.11 Table L-8
data = swifi.binstr2binv(
'110100011010000100000010001111100111000000000000')
expected = swifi.binstr2binv(
'100101001101000000010100100000110010010010010100')
self.run_interleaving_test(data,
expected,
rate=swifi.phy_utils.BPSK_1_2)
def test_encode_signal_field_t(self):
# data source is SIGNAL field taken from IEEE 802.11 standard's Table L-7
# expected result is taken from Table L-9
self.run_encoding_test(
binary_data=swifi.binstr2binv('101100010011000000000000'),
expected=swifi.binstr2binv(
'100101001101000000010100100000110010010010010100'),
bytes_per_block=3,
nitems=3,
rate=swifi.phy_utils.BPSK_1_2,
flag=swifi.PHY_HEADER_FLAG)
def test_decode_data_field_t(self):
# expected result is the DATA field taken from IEEE 802.11's Table L-13
expected = swifi.str2binv(
'\x00\x00\x04\x02\x00\x2E\x00\x60\x08\xCD\x37\xA6\x00\x20\xD6\x01\x3C\xF1\x00\x60\x08\xAD\x3B\xAF\x00\x00\x4A\x6F\x79\x2C\x20\x62\x72\x69\x67\x68\x74\x20\x73\x70\x61\x72\x6B\x20\x6F\x66\x20\x64\x69\x76\x69\x6E\x69\x74\x79\x2C\x0A\x44\x61\x75\x67\x68\x74\x65\x72\x20\x6F\x66\x20\x45\x6C\x79\x73\x69\x75\x6D\x2C\x0A\x46\x69\x72\x65\x2D\x69\x6E\x73\x69\x72\x65\x64\x20\x77\x65\x20\x74\x72\x65\x61\x67\x33\x21\xB6\x00\x00\x00\x00\x00\x00'
)
# data is taken from test_encode_data_field
data = swifi.binstr2binv('\
01110111111100001110111111000100\
01110011000000001011111100010001\
00010000100110100001110100010010\
01101110001110001111010101101001\
00011011011010111001100001000011\
00000000000011011011001101101101\
11000101001110101001011011010001\
11001000100100001111110000101101\
01110101101000110010111110001010\
10101010111010100010000000011000\
10001100100011011110101001000010\
00001010001110101100100100010111\
11110110001010000101010010011000\
10000100100101110000101100001100\
11100100100111001111110011110000\
11010010001010101001101010101100\
10101110001100010111101001110111\
00011101101010011001011111010110\
00001001111011001111000011100100\
00001000010001101000011110100001\
01010110101011010000001100110001\
10111000110001001111101011010100\
11100110001001010010001001000111\
00000001111010100100110001111000\
00000101101101111001110111010101\
10100000111110111111011110101100\
11111101001000111000001111001111\
10001110100010010001010000100111\
00111111100100101010011110010101\
11000001100011001111101000011010\
10101101100110001100100000010100\
11011101110100100111000101000100\
11101001010001110010110110010001\
10001101010101010111100111011111\
01010011101101111011110011110111\
00010011011100011001100101011111\
')
self.run_decoding_test(
binary_data=data,
expected=expected,
bytes_per_block=144,
nitems=100,
rate=swifi.phy_utils.QAM16_3_4,
flag=swifi.PHY_SCRAMBLER_FLAG | swifi.PHY_TAIL_SET_FLAG,
ntruncate=48
) # ignore the last 48 bits of tail and padding for correct comparison with expected result
def test_encode_data_field_t(self):
# data source is the DATA field taken from IEEE 802.11's Table L-13
data = swifi.str2binv(
'\x00\x00\x04\x02\x00\x2E\x00\x60\x08\xCD\x37\xA6\x00\x20\xD6\x01\x3C\xF1\x00\x60\x08\xAD\x3B\xAF\x00\x00\x4A\x6F\x79\x2C\x20\x62\x72\x69\x67\x68\x74\x20\x73\x70\x61\x72\x6B\x20\x6F\x66\x20\x64\x69\x76\x69\x6E\x69\x74\x79\x2C\x0A\x44\x61\x75\x67\x68\x74\x65\x72\x20\x6F\x66\x20\x45\x6C\x79\x73\x69\x75\x6D\x2C\x0A\x46\x69\x72\x65\x2D\x69\x6E\x73\x69\x72\x65\x64\x20\x77\x65\x20\x74\x72\x65\x61\x67\x33\x21\xB6\x00\x00\x00\x00\x00\x00'
)
# expected result is generated below
expected = swifi.binstr2binv('\
01110111111100001110111111000100\
01110011000000001011111100010001\
00010000100110100001110100010010\
01101110001110001111010101101001\
00011011011010111001100001000011\
00000000000011011011001101101101\
11000101001110101001011011010001\
11001000100100001111110000101101\
01110101101000110010111110001010\
10101010111010100010000000011000\
10001100100011011110101001000010\
00001010001110101100100100010111\
11110110001010000101010010011000\
10000100100101110000101100001100\
11100100100111001111110011110000\
11010010001010101001101010101100\
10101110001100010111101001110111\
00011101101010011001011111010110\
00001001111011001111000011100100\
00001000010001101000011110100001\
01010110101011010000001100110001\
10111000110001001111101011010100\
11100110001001010010001001000111\
00000001111010100100110001111000\
00000101101101111001110111010101\
10100000111110111111011110101100\
11111101001000111000001111001111\
10001110100010010001010000100111\
00111111100100101010011110010101\
11000001100011001111101000011010\
10101101100110001100100000010100\
11011101110100100111000101000100\
11101001010001110010110110010001\
10001101010101010111100111011111\
01010011101101111011110011110111\
00010011011100011001100101011111\
')
self.run_encoding_test(binary_data=data,
expected=expected,
bytes_per_block=108,
nitems=100,
rate=swifi.phy_utils.QAM16_3_4,
flag=swifi.PHY_SCRAMBLER_FLAG
| swifi.PHY_TAIL_SET_FLAG)
def test_puncturing_002_t(self):
data = swifi.binstr2binv('\
000000000000000000100000\
010000000000000001110100\
000000000000011000010000\
101100111110110001100101\
000000000000010001101011\
100000000011110010001111\
000000000000011000010000\
101101011101110011110101\
')
expected = swifi.binstr2binv('\
0000000000001000\
0100000000011100\
0000000001100100\
1010111011011001\
0000000001011011\
1000000111000011\
0000000001100100\
1011011111011101\
')
self.run_puncturing_test(swifi.phy_utils.BPSK_3_4, data, expected)
def test_depuncturing_001_t(self):
data = swifi.binstr2binv('\
000000000000000000100000\
010000000000000001110100\
000000000000011000010000\
101100111110110001100101\
000000000000010001101011\
100000000011110010001111\
000000000000011000010000\
101101011101110011110101\
')
expected = data
self.run_depuncturing_test(swifi.phy_utils.BPSK_1_2, data, expected)
def test_scrambling_descrambling_001_t(self):
data = swifi.binstr2binv('\
000000000000000000100000\
010000000000000001110100\
000000000000011000010000\
101100111110110001100101\
000000000000010001101011\
100000000011110010001111\
000000000000011000010000\
101101011101110011110101\
')
# run scrambling-descrambling without 6 tail bits set to 0 (flag=1)
self.run_scrambling_descrambling_test(data, flag=swifi.PHY_SCRAMBLER_FLAG)
def test_interleaving_002_t(self):
# data is the first symbol of encoded DATA field taken from IEEE 802.11 Table L-16
data = swifi.str2binv_msb(
'\x2B\x08\xA1\xF0\x9D\xB5\x9A\x1D\x4A\xFB\xE8\xC2\x8F\xC0\xC8\x73\xC0\x43\xE0\x19\xE0\xD3\xEB\xB2'
)
expected = swifi.binstr2binv('\
01110111111100001110111111000100\
01110011000000001011111100010001\
00010000100110100001110100010010\
01101110001110001111010101101001\
00011011011010111001100001000011\
00000000000011011011001101101101\
')
self.run_interleaving_test(data,
expected,
rate=swifi.phy_utils.QAM16_3_4)