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|
import sys
import unittest
from struct import pack
import six
import txdbus.marshal as m
# dbus_types = [ ('BYTE', 'y', 1),
# ('BOOLEAN', 'b', 4),
# ('INT16', 'n', 2),
# ('UINT16', 'q', 2),
# ('INT32', 'i', 4),
# ('UINT32', 'u', 4),
# ('INT64', 'x', 8),
# ('UINT64', 't', 8),
# ('DOUBLE', 'd', 8),
# ('STRING', 's', 4), # (4-byte align for length)
# ('OBJECT_PATH', '4', 4), # (4-byte align for length)
# ('SIGNATURE', 'g', 1),
# ('ARRAY', 'a', 4), # (4-byte align for length)
# ('STRUCT', '(', 8),
# ('VARIANT', 'v', 1), # (1-byte align for signature)
# ('DICT_ENTRY', '{', 8),
# ('UNIX_FD', 'h', 4)
# ]
class SigFromPyTests(unittest.TestCase):
def t(self, p, s):
self.assertEqual(m.sigFromPy(p), s)
def test_int(self):
self.t(1, 'i')
def test_bool(self):
self.t(True, 'b')
@unittest.skipIf(six.PY3, 'Python 3 uses unified integers: no long type.')
def test_long(self):
self.t(long(1), 'x') # noqa: This test is python2-only
def test_float(self):
self.t(1.0, 'd')
def test_string(self):
self.t('foo', 's')
def test_list(self):
self.t([1], 'ai')
def test_bytearray(self):
self.t(bytearray(six.b('\xAA\xAA')), 'ay')
def test_list_multiple_elements_same_type(self):
self.t([1, 2], 'ai')
def test_list_of_variants(self):
self.t([1, '2'], 'av')
def test_tuple(self):
self.t(('foo', 1), '(si)')
def test_dict(self):
self.t({'foo': 1}, 'a{si}')
def test_dict_multiple_elements_same_type(self):
self.t({'foo': 1, 'bar': 2}, 'a{si}')
def test_dict_of_variants(self):
self.t({'foo': 1, 'bar': '2'}, 'a{sv}')
def test_fail(self):
class I(object):
pass
self.assertRaises(m.MarshallingError, m.sigFromPy, I())
def test_class(self):
class V(object):
dbusSignature = 'ii'
self.t(V(), 'ii')
class AlignmentTests(unittest.TestCase):
def test_no_padding(self):
self.assertEqual(m.pad['y'](1), b'')
def test_2align(self):
self.assertEqual(m.pad['n'](1), b'\0')
def test_8align(self):
self.assertEqual(m.pad['t'](1), b'\0' * 7)
def test_0align(self):
self.assertEqual(m.pad['t'](8), b'')
def test_mid_align(self):
self.assertEqual(m.pad['t'](4), b'\0' * 4)
class SignatureIteratorTests(unittest.TestCase):
def ae(self, sig, expected):
self.assertEqual(list(m.genCompleteTypes(sig)), expected)
def test_one(self):
self.ae('i', ['i'])
def test_two(self):
self.ae('ii', ['i', 'i'])
def test_multi(self):
self.ae('isydnq', ['i', 's', 'y', 'd', 'n', 'q'])
def test_struct(self):
self.ae('i(ii)i', ['i', '(ii)', 'i'])
def test_embedded_struct(self):
self.ae('i(i(ss)i)i', ['i', '(i(ss)i)', 'i'])
def test_embedded_array(self):
self.ae('i(iaii)i', ['i', '(iaii)', 'i'])
def test_array_of_struct(self):
self.ae('ia(iii)i', ['i', 'a(iii)', 'i'])
def test_array_of_dict(self):
self.ae('ia{s(ii)}i', ['i', 'a{s(ii)}', 'i'])
class TestMarshal(unittest.TestCase):
def check(self, sig, var_list, expected_encoding, little_endian = sys.byteorder == 'little'):
if not isinstance(var_list, list):
var_list = [var_list]
nbytes, chunks = m.marshal(sig, var_list, 0, little_endian)
bin_str = b''.join(chunks)
self.assertEqual(
nbytes,
len(expected_encoding),
"Byte length mismatch. Expected %d. Got %d" % (
len(expected_encoding),
nbytes,
),
)
self.assertEqual(
bin_str,
expected_encoding,
"Binary encoding differs from expected value",
)
class TestSimpleMarshal(TestMarshal):
def test_byte(self):
self.check('y', 1, b'\x01')
def test_int16(self):
self.check('n', -1024, pack('h', -1024))
def test_uint16(self):
self.check('q', 1024, pack('H', 1024))
def test_int32(self):
self.check('i', -70000, pack('i', -70000))
def test_uint32(self):
self.check('u', 70000, pack('I', 70000))
def test_int64(self):
self.check('x', -70000, pack('q', -70000))
def test_uint64(self):
self.check('t', 70000, pack('Q', 70000))
def test_double(self):
self.check('d', 3.14, pack('d', 3.14))
def test_boolean(self):
self.check('b', True, pack('i', 1))
def test_string(self):
self.check('s', 'Hello World', pack('i12s', 11, b'Hello World'))
def test_string_wrong_type(self):
self.assertRaises(m.MarshallingError, self.check, 's', 1, '')
def test_string_embedded_null(self):
self.assertRaises(
m.MarshallingError,
self.check,
's',
b'Hello\0World',
'')
def test_signature1(self):
self.check('g', 'i', pack('BcB', 1, b'i', 0))
def test_signature2(self):
self.check('g', '(ii)', pack('B4sB', 4, b'(ii)', 0))
def test_endian(self):
self.check('x', 70000, pack('>q', 70000), False)
class TestStructMarshal(TestMarshal):
def test_one(self):
self.check('(i)', [[1]], pack('i', 1))
def test_two(self):
self.check('(ii)', [[2, 3]], pack('ii', 2, 3))
def test_pad(self):
self.check('(yx)', [[1, 70000]], pack('Bxxxxxxxq', 1, 70000))
def test_string(self):
self.check('(ysy)', [[1, 'foo', 2]], pack(
'Bxxxi3sxB', 1, 3, b'foo', 2))
def test_substruct(self):
self.check('(y(ii)y)', [[1, [3, 4], 2]],
pack('BxxxxxxxiiB', 1, 3, 4, 2))
def test_substruct_endian(self):
self.check('(y(ii)y)', [[1, [3, 4], 2]], pack(
'>BxxxxxxxiiB', 1, 3, 4, 2), False)
def test_custom(self):
class S:
dbusOrder = 'a b'.split()
def __init__(self):
self.a = 1
self.b = 2
self.check('(ii)', [S()], pack('ii', 1, 2))
class TestArrayMarshal(TestMarshal):
def test_byte(self):
self.check('ay', [[1, 2, 3, 4]], pack('iBBBB', 4, 1, 2, 3, 4))
def test_byte_bytearray(self):
self.check(
'ay',
bytearray(six.b('\xaa\xaa')),
pack('iBB', 2, 170, 170),
)
def test_string(self):
self.check('as', [['x', 'foo']], pack(
'ii2sxxi4s', 16, 1, b'x', 3, b'foo'))
def test_struct(self):
self.check('a(ii)', [[[1, 2], [3, 4]]],
pack('ixxxxiiii', 16, 1, 2, 3, 4))
def test_struct_padding(self):
self.check('a(yy)', [[[1, 2], [3, 4]]], pack(
'ixxxxBBxxxxxxBB', 10, 1, 2, 3, 4))
def test_dict(self):
self.check('a{yy}', [{1: 2, 3: 4}], pack(
'ixxxxBBxxxxxxBB', 10, 1, 2, 3, 4))
def test_dict_strings(self):
self.check(
'a{ss}',
[[('foo', 'bar'), ('x', 'y')]],
pack(
'ixxxxi4si4si2sxxi2s',
30,
3,
b'foo',
3,
b'bar',
1,
b'x',
1,
b'y'
)
)
def test_invalid_array(self):
self.assertRaises(m.MarshallingError, self.check, 'a{yy}', 1, '')
class TestVariantMarshal(TestMarshal):
def test_byte(self):
self.check('v', [1], pack('B2si', 1, b'i', 1))
def test_struct(self):
class S:
dbusSignature = '(ii)'
dbusOrder = 'a b'.split()
def __init__(self):
self.a = 1
self.b = 2
self.check('v', [S()], pack('B5sxxii', 4, b'(ii)', 1, 2))
def test_bytearray(self):
self.check(
'v', bytearray(
six.b('\xAA\xAA')), pack(
'B2siBB', 2, six.b('ay'), 2, 170, 170))
# ------------------------------------------------------------------------
# Unmarshalling
# ------------------------------------------------------------------------
def check_equal(a, b):
try:
if isinstance(a, list):
check_list(a, b)
elif isinstance(a, dict):
check_dict(a, b)
elif not a == b:
raise Exception()
except BaseException:
return False
return True
def check_list(a, b):
if not isinstance(b, list):
raise Exception()
if len(a) != len(b):
raise Exception()
for x, y in zip(a, b):
check_equal(x, y)
def check_dict(a, b):
if not isinstance(b, dict):
raise Exception()
if not len(a.keys()) == len(b.keys()):
raise Exception()
aset = set(a.keys())
bset = set(b.keys())
if aset - bset:
raise Exception()
for x in a.keys():
check_equal(a[x], b[x])
class TestUnmarshal(unittest.TestCase):
def check(self, sig, expected_value, encoding):
nbytes, value = m.unmarshal(sig, encoding, 0, sys.byteorder == 'little')
self.assertEqual(
nbytes,
len(encoding),
(
"Unmarshalling length mismatch. Expected %d bytes consumed. "
"Got %d"
) % (len(encoding), nbytes),
)
self.assertTrue(
check_equal(
[expected_value],
value),
'Value mismatch. Expected: "%s". Got: "%s"' %
(repr(expected_value),
repr(value)))
class TestSimpleUnmarshal(TestUnmarshal):
def test_byte(self):
self.check('y', 1, b'\1')
def test_int16(self):
self.check('n', -1024, pack('h', -1024))
def test_uint16(self):
self.check('q', 1024, pack('H', 1024))
def test_int32(self):
self.check('i', -70000, pack('i', -70000))
def test_uint32(self):
self.check('u', 70000, pack('I', 70000))
def test_int64(self):
self.check('x', -70000, pack('q', -70000))
def test_uint64(self):
self.check('t', 70000, pack('Q', 70000))
def test_double(self):
self.check('d', 3.14, pack('d', 3.14))
def test_boolean(self):
self.check('b', True, pack('i', 1))
def test_string(self):
self.check('s', 'Hello World', pack('i12s', 11, b'Hello World'))
def test_signature1(self):
self.check('g', 'i', pack('BcB', 1, b'i', 0))
def test_signature2(self):
self.check('g', '(ii)', pack('B4sB', 4, b'(ii)', 0))
class TestStructUnmarshal(TestUnmarshal):
def test_one(self):
self.check('(i)', [[1]], pack('i', 1))
def test_two(self):
self.check('(ii)', [[2, 3]], pack('ii', 2, 3))
def test_pad(self):
self.check('(yx)', [[1, 70000]], pack('Bxxxxxxxq', 1, 70000))
def test_string(self):
self.check(
'(ysy)',
[[1, 'foo', 2]],
pack('Bxxxi3sxB', 1, 3, b'foo', 2),
)
def test_substruct(self):
self.check(
'(y(ii)y)',
[[1, [3, 4], 2]],
pack('BxxxxxxxiiB', 1, 3, 4, 2),
)
class TestArrayUnmarshal(TestUnmarshal):
def test_byte(self):
self.check('ay', [[1, 2, 3, 4]], pack('iBBBB', 4, 1, 2, 3, 4))
def test_string(self):
self.check(
'as',
[['x', 'foo']],
pack('ii2sxxi4s', 16, 1, b'x', 3, b'foo')
)
def test_struct(self):
self.check(
'a(ii)',
[[[1, 2], [3, 4]]],
pack('ixxxxiiii', 16, 1, 2, 3, 4)
)
def test_struct_padding(self):
self.check(
'a(yy)',
[[[1, 2], [3, 4]]],
pack('ixxxxBBxxxxxxBB', 10, 1, 2, 3, 4)
)
def test_dict(self):
self.check(
'a{yy}',
[{1: 2, 3: 4}],
pack('ixxxxBBxxxxxxBB', 10, 1, 2, 3, 4),
)
def test_dict_strings(self):
self.check(
'a{ss}',
[{'foo': 'bar', 'x': 'y'}],
pack(
'ixxxxi4si4si2sxxi2s',
30,
3,
b'foo',
3,
b'bar',
1,
b'x',
1,
b'y'
)
)
def test_bad_length(self):
self.assertRaises(
m.MarshallingError,
self.check,
'a(ii)',
[[[1, 2], [3, 4]]],
pack('ixxxxiiii', 15, 1, 2, 3, 4)
)
class TestVariantUnmarshal(TestUnmarshal):
def test_byte(self):
self.check('v', [1], pack('B2si', 1, b'i', 1))
def test_struct(self):
self.check('v', [[1, 2]], pack('B5sxxii', 4, b'(ii)', 1, 2))
if __name__ == '__main__':
unittest.main()
|
