def test_base64_basic(self):
"""
This method tests put_base64's and get_base64's basic functionality.
"""
bitstream = BitStream()
# We use the Base64 Test Vectors defined in RFC4648.
# http://www.ietf.org/rfc/rfc4648.txt
test_vectors = [("",""),
("f","Zg=="),
("fo","Zm8="),
("foo","Zm9v"),
("foob","Zm9vYg=="),
("fooba","Zm9vYmE="),
("foobar","Zm9vYmFy")]
# STEP 1:
# For each test vector, we write its value to the bitstream as a string
# then read it as base64 data.
for (str_val, base64_val) in test_vectors:
vector_bit_length = len(str_val)*8
bitstream.put_string(str_val)
bitstream.seek(0)
self.assertEquals(bitstream.get_base64(vector_bit_length),
base64_val)
bitstream.seek(0)
# NOTE that we are overwriting multiple times our bitstream, this is
# also a feature of BitStream we are testing in this test case.
# STEP 2:
# For each test vector, we write its value to the bitstream as base64
# data, then read it as string *and* base64 data.
for (str_val, base64_val) in test_vectors:
vector_bit_length = len(str_val)*8
bitstream.put_base64(base64_val)
bitstream.seek(0)
self.assertEquals(bitstream.get_string(vector_bit_length),
str_val)
bitstream.seek(0)
self.assertEquals(bitstream.get_base64(vector_bit_length),
base64_val)
bitstream.seek(0)
# STEP 3:
# For each test vector, we write its value to a NEW bitstream as base64
# data, and make sure the length of the stream is the expected one.
for (str_val, base64_val) in test_vectors:
vector_bit_length = len(str_val)*8
new_bs = BitStream()
new_bs.put_base64(base64_val)
self.assertEquals(new_bs.get_length(), vector_bit_length)
self.assertEquals(new_bs.get_current_pos(), vector_bit_length)
def test_get_base64_zero_bits(self):
"""
Test that reading zero bits from the stream as base64 data results in
getting the empty string: \"\".
"""
bitstream = BitStream()
self.assertEquals(bitstream.get_base64(0), "")
# Store some base64 data in the stream.
bitstream.put_base64("Zm9vYmE=") # 40 bits
bitstream.seek(0)
self.assertEquals(bitstream.get_base64(0), "")
def test_get_base64_zero_bits(self):
"""
Test that reading zero bits from the stream as base64 data results in
getting the empty string: \"\".
"""
bitstream = BitStream()
self.assertEquals(bitstream.get_base64(0), "")
# Store some base64 data in the stream.
bitstream.put_base64("Zm9vYmE=") # 40 bits
bitstream.seek(0)
self.assertEquals(bitstream.get_base64(0), "")
def test_base64_basic(self):
"""
This method tests put_base64's and get_base64's basic functionality.
"""
bitstream = BitStream()
# We use the Base64 Test Vectors defined in RFC4648.
# http://www.ietf.org/rfc/rfc4648.txt
test_vectors = [("", ""), ("f", "Zg=="), ("fo", "Zm8="),
("foo", "Zm9v"), ("foob", "Zm9vYg=="),
("fooba", "Zm9vYmE="), ("foobar", "Zm9vYmFy")]
# STEP 1:
# For each test vector, we write its value to the bitstream as a string
# then read it as base64 data.
for (str_val, base64_val) in test_vectors:
vector_bit_length = len(str_val) * 8
bitstream.put_string(str_val)
bitstream.seek(0)
self.assertEquals(bitstream.get_base64(vector_bit_length),
base64_val)
bitstream.seek(0)
# NOTE that we are overwriting multiple times our bitstream, this is
# also a feature of BitStream we are testing in this test case.
# STEP 2:
# For each test vector, we write its value to the bitstream as base64
# data, then read it as string *and* base64 data.
for (str_val, base64_val) in test_vectors:
vector_bit_length = len(str_val) * 8
bitstream.put_base64(base64_val)
bitstream.seek(0)
self.assertEquals(bitstream.get_string(vector_bit_length), str_val)
bitstream.seek(0)
self.assertEquals(bitstream.get_base64(vector_bit_length),
base64_val)
bitstream.seek(0)
# STEP 3:
# For each test vector, we write its value to a NEW bitstream as base64
# data, and make sure the length of the stream is the expected one.
for (str_val, base64_val) in test_vectors:
vector_bit_length = len(str_val) * 8
new_bs = BitStream()
new_bs.put_base64(base64_val)
self.assertEquals(new_bs.get_length(), vector_bit_length)
self.assertEquals(new_bs.get_current_pos(), vector_bit_length)
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)
