60 lines
1.8 KiB
Python
60 lines
1.8 KiB
Python
"""Test of various compression/encoding modules (previously in doctests)
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"""
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import binascii
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from nose.tools import assert_equal
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from pdfminer.arcfour import Arcfour
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from pdfminer.ascii85 import asciihexdecode, ascii85decode
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from pdfminer.lzw import lzwdecode
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from pdfminer.runlength import rldecode
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def hex(b):
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"""encode('hex')"""
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return binascii.hexlify(b)
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def dehex(b):
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"""decode('hex')"""
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return binascii.unhexlify(b)
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class TestAscii85():
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def test_ascii85decode(self):
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"""The sample string is taken from:
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http://en.wikipedia.org/w/index.php?title=Ascii85"""
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assert_equal(ascii85decode(b'9jqo^BlbD-BleB1DJ+*+F(f,q'),
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b'Man is distinguished')
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assert_equal(ascii85decode(b'E,9)oF*2M7/c~>'),
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b'pleasure.')
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def test_asciihexdecode(self):
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assert_equal(asciihexdecode(b'61 62 2e6364 65'),
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b'ab.cde')
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assert_equal(asciihexdecode(b'61 62 2e6364 657>'),
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b'ab.cdep')
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assert_equal(asciihexdecode(b'7>'),
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b'p')
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class TestArcfour():
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def test(self):
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assert_equal(hex(Arcfour(b'Key').process(b'Plaintext')),
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b'bbf316e8d940af0ad3')
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assert_equal(hex(Arcfour(b'Wiki').process(b'pedia')),
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b'1021bf0420')
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assert_equal(hex(Arcfour(b'Secret').process(b'Attack at dawn')),
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b'45a01f645fc35b383552544b9bf5')
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class TestLzw():
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def test_lzwdecode(self):
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assert_equal(lzwdecode(b'\x80\x0b\x60\x50\x22\x0c\x0c\x85\x01'),
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b'\x2d\x2d\x2d\x2d\x2d\x41\x2d\x2d\x2d\x42')
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class TestRunlength():
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def test_rldecode(self):
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assert_equal(rldecode(b'\x05123456\xfa7\x04abcde\x80junk'),
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b'1234567777777abcde')
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