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82 lines
3.5 KiB
Python
82 lines
3.5 KiB
Python
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import unittest
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import utils
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from utils import BinaryReader, BinaryWriter
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class UtilsTests(unittest.TestCase):
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@staticmethod
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def test_binary_writer_reader():
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# Test that we can write and read properly
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with BinaryWriter() as writer:
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writer.write_byte(1)
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writer.write_int(5)
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writer.write_long(13)
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writer.write_float(17.0)
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writer.write_double(25.0)
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writer.write(bytes([26, 27, 28, 29, 30, 31, 32]))
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writer.write_large_int(2 ** 127, 128, signed=False)
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data = writer.get_bytes()
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expected = b'\x01\x05\x00\x00\x00\r\x00\x00\x00\x00\x00\x00\x00\x00\x00\x88A\x00\x00\x00\x00\x00\x00' \
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b'9@\x1a\x1b\x1c\x1d\x1e\x1f \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80'
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assert data == expected, 'Retrieved data does not match the expected value'
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with BinaryReader(data) as reader:
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value = reader.read_byte()
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assert value == 1, 'Example byte should be 1 but is {}'.format(value)
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value = reader.read_int()
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assert value == 5, 'Example integer should be 5 but is {}'.format(value)
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value = reader.read_long()
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assert value == 13, 'Example long integer should be 13 but is {}'.format(value)
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value = reader.read_float()
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assert value == 17.0, 'Example float should be 17.0 but is {}'.format(value)
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value = reader.read_double()
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assert value == 25.0, 'Example double should be 25.0 but is {}'.format(value)
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value = reader.read(7)
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assert value == bytes([26, 27, 28, 29, 30, 31, 32]), 'Example bytes should be {} but is {}' \
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.format(bytes([26, 27, 28, 29, 30, 31, 32]), value)
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value = reader.read_large_int(128, signed=False)
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assert value == 2 ** 127, 'Example large integer should be {} but is {}'.format(2 ** 127, value)
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# Test Telegram that types are written right
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with BinaryWriter() as writer:
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writer.write_int(0x60469778)
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buffer = writer.get_bytes()
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valid = b'\x78\x97\x46\x60' # Tested written bytes using TLSharp and C#'s MemoryStream
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assert buffer == valid, "Written type should be {} but is {}".format(list(valid), list(buffer))
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@staticmethod
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def test_binary_tgwriter_tgreader():
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small_data = utils.generate_random_bytes(33)
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small_data_padded = utils.generate_random_bytes(19) # +1 byte for length = 20 (evenly divisible by 4)
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large_data = utils.generate_random_bytes(999)
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large_data_padded = utils.generate_random_bytes(1024)
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data = (small_data, small_data_padded, large_data, large_data_padded)
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string = 'Testing Telegram strings, this should work properly!'
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with BinaryWriter() as writer:
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# First write the data
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for datum in data:
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writer.tgwrite_bytes(datum)
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writer.tgwrite_string(string)
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with BinaryReader(writer.get_bytes()) as reader:
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# And then try reading it without errors (it should be unharmed!)
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for datum in data:
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value = reader.tgread_bytes()
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assert value == datum, 'Example bytes should be {} but is {}'.format(datum, value)
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value = reader.tgread_string()
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assert value == string, 'Example string should be {} but is {}'.format(string, value)
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