def test_get_hex_zero_bits(self): """ Test that reading zero bits from the stream as hex data results in getting the empty string: \"\". """ bitstream = BitStream() self.assertEquals(bitstream.get_hex(0), "") # Store some hex data in the stream. bitstream.put_hex("DfF7CE69fF5478A") # 15 digits, 60 bits bitstream.seek(0) self.assertEquals(bitstream.get_hex(0), "")
def test_hex_basic(self): """ This method tests put_hex's and get_hex's basic functionality. """ bitstream = BitStream() # Generate a random string of hex digits, ie: ('0'-'9'|'a'-'f'|'A'-'F')* valid_hex_digits = "0123456789abcdefABCDEF" num_digits = 50 digits = "" for i in range(0, num_digits): digits += random.choice(valid_hex_digits) # Put those digits in the BitStream... bitstream.put_hex(digits) # ...and get them back bitstream.seek(0) read_digits = bitstream.get_hex(len(digits) * 4) # 1 hex digit == 4 bits # Check that the hexadecimal digits were recovered correctly # Note that case information may be lost. Comparison must be case # insensitive (ie. 'a9Bc' and 'A9bC' are equal) self.assertEqual(read_digits.lower(), digits.lower())
def test_multiformat_write_multiformat_read(self): """ This test writes numeric, byte and string data to a stream and then reads the whole stream as binary, hex and base64 data, ensuring that the output is the expected one in each case. """ # Write a number, 2 bytes and a string bitstream = BitStream() bitstream.put_num(10438341575639894917, 64) bitstream.put_byte(230) bitstream.put_byte(191) bitstream.put_string("ÄäÜüßTestЯБГДЖЙŁĄŻStringĘĆŃŚŹてす" \ "とアイウエオカキク4234ケコサシスセソタチツテ") # Read in binary, hex and base64 formats expected_bits = \ "1001000011011100011100000101101110111100001101010000101110000101" \ "1110011010111111110000111000010011000011101001001100001110011100" \ "1100001110111100110000111001111101010100011001010111001101110100" \ "1101000010101111110100001001000111010000100100111101000010010100" \ "1101000010010110110100001001100111000101100000011100010010000100" \ "1100010110111011010100110111010001110010011010010110111001100111" \ "1100010010011000110001001000011011000101100000111100010110011010" \ "1100010110111001111000111000000110100110111000111000000110011001" \ "1110001110000001101010001110111110111101101100011110111110111101" \ "1011001011101111101111011011001111101111101111011011010011101111" \ "1011110110110101111011111011110110110110111011111011110110110111" \ "1110111110111101101110000011010000110010001100110011010011101111" \ "1011110110111001111011111011110110111010111011111011110110111011" \ "1110111110111101101111001110111110111101101111011110111110111101" \ "1011111011101111101111011011111111101111101111101000000011101111" \ "1011111010000001111011111011111010000010111011111011111010000011" expected_hex = \ "90dc705bbc350b85e6bfc384c3a4c39cc3bcc39f54657374d0afd091d093d094" \ "d096d099c581c484c5bb537472696e67c498c486c583c59ac5b9e381a6e38199" \ "e381a8efbdb1efbdb2efbdb3efbdb4efbdb5efbdb6efbdb7efbdb834323334ef" \ "bdb9efbdbaefbdbbefbdbcefbdbdefbdbeefbdbfefbe80efbe81efbe82efbe83" expected_base64 = \ "kNxwW7w1C4Xmv8OEw6TDnMO8w59UZXN00K/QkdCT0JTQltCZxYHEhMW7U3RyaW5n" \ "xJjEhsWDxZrFueOBpuOBmeOBqO+9se+9su+9s++9tO+9te+9tu+9t++9uDQyMzTv" \ "vbnvvbrvvbvvvbzvvb3vvb7vvb/vvoDvvoHvvoLvvoM=" bitstream.seek(0) self.assertEquals( \ bitstream.get_bit_dump_string(bitstream.get_length()), expected_bits) bitstream.seek(0) self.assertEquals( bitstream.get_hex(bitstream.get_length()).lower(), expected_hex) bitstream.seek(0) self.assertEquals(bitstream.get_base64(bitstream.get_length()), expected_base64)
def test_multiformat_write_multiformat_read(self): """ This test writes numeric, byte and string data to a stream and then reads the whole stream as binary, hex and base64 data, ensuring that the output is the expected one in each case. """ # Write a number, 2 bytes and a string bitstream = BitStream() bitstream.put_num(10438341575639894917, 64) bitstream.put_byte(230) bitstream.put_byte(191) bitstream.put_string("ÄäÜüßTestЯБГДЖЙŁĄŻStringĘĆŃŚŹてす" \ "とアイウエオカキク4234ケコサシスセソタチツテ") # Read in binary, hex and base64 formats expected_bits = \ "1001000011011100011100000101101110111100001101010000101110000101" \ "1110011010111111110000111000010011000011101001001100001110011100" \ "1100001110111100110000111001111101010100011001010111001101110100" \ "1101000010101111110100001001000111010000100100111101000010010100" \ "1101000010010110110100001001100111000101100000011100010010000100" \ "1100010110111011010100110111010001110010011010010110111001100111" \ "1100010010011000110001001000011011000101100000111100010110011010" \ "1100010110111001111000111000000110100110111000111000000110011001" \ "1110001110000001101010001110111110111101101100011110111110111101" \ "1011001011101111101111011011001111101111101111011011010011101111" \ "1011110110110101111011111011110110110110111011111011110110110111" \ "1110111110111101101110000011010000110010001100110011010011101111" \ "1011110110111001111011111011110110111010111011111011110110111011" \ "1110111110111101101111001110111110111101101111011110111110111101" \ "1011111011101111101111011011111111101111101111101000000011101111" \ "1011111010000001111011111011111010000010111011111011111010000011" expected_hex = \ "90dc705bbc350b85e6bfc384c3a4c39cc3bcc39f54657374d0afd091d093d094" \ "d096d099c581c484c5bb537472696e67c498c486c583c59ac5b9e381a6e38199" \ "e381a8efbdb1efbdb2efbdb3efbdb4efbdb5efbdb6efbdb7efbdb834323334ef" \ "bdb9efbdbaefbdbbefbdbcefbdbdefbdbeefbdbfefbe80efbe81efbe82efbe83" expected_base64 = \ "kNxwW7w1C4Xmv8OEw6TDnMO8w59UZXN00K/QkdCT0JTQltCZxYHEhMW7U3RyaW5n" \ "xJjEhsWDxZrFueOBpuOBmeOBqO+9se+9su+9s++9tO+9te+9tu+9t++9uDQyMzTv" \ "vbnvvbrvvbvvvbzvvb3vvb7vvb/vvoDvvoHvvoLvvoM=" bitstream.seek(0) self.assertEquals( \ bitstream.get_bit_dump_string(bitstream.get_length()), expected_bits) bitstream.seek(0) self.assertEquals(bitstream.get_hex(bitstream.get_length()).lower(), expected_hex) bitstream.seek(0) self.assertEquals(bitstream.get_base64(bitstream.get_length()), expected_base64)
def test_hex_basic(self): """ This method tests put_hex's and get_hex's basic functionality. """ bitstream = BitStream() # Generate a random string of hex digits, ie: ('0'-'9'|'a'-'f'|'A'-'F')* valid_hex_digits = "0123456789abcdefABCDEF" num_digits = 50 digits = "" for i in range(0,num_digits): digits += random.choice(valid_hex_digits) # Put those digits in the BitStream... bitstream.put_hex(digits) # ...and get them back bitstream.seek(0) read_digits = bitstream.get_hex(len(digits)*4) # 1 hex digit == 4 bits # Check that the hexadecimal digits were recovered correctly # Note that case information may be lost. Comparison must be case # insensitive (ie. 'a9Bc' and 'A9bC' are equal) self.assertEqual(read_digits.lower(), digits.lower())