forked from python-xlib/python-xlib
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathtest_struct.py
More file actions
197 lines (165 loc) · 10 KB
/
test_struct.py
File metadata and controls
197 lines (165 loc) · 10 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
from collections import OrderedDict
from functools import partial
import struct
import types
import re
from six import binary_type, iterbytes
from Xlib.protocol import rq
from . import DummyDisplay, TestCase
dummy_display = DummyDisplay()
def pack(format, *args):
return struct.pack('=' + format, *args)
def packstr(s, padding=0):
return s.encode() + (b'\0' * padding)
class StructTest(object):
""" Test class helper for rq.Struct packing/unpacking support. """
struct = None
values_in = None
binary = None
values_out = None
def test_pack_value_dict(self):
self.assertBinaryEqual(self.struct.pack_value(dict(self.values_in)), self.binary)
def test_pack_value_tuple(self):
self.assertBinaryEqual(self.struct.pack_value(tuple(self.values_in.values())), self.binary)
def test_to_binary_args(self):
self.assertBinaryEqual(self.struct.to_binary(*self.values_in.values()), self.binary)
def test_to_binary_kwargs(self):
self.assertBinaryEqual(self.struct.to_binary(**dict(self.values_in)), self.binary)
def test_parse_binary(self):
values, remain = self.struct.parse_binary(self.binary, dummy_display)
self.assertEqual(values, rq.DictWrapper(dict(self.values_out)))
self.assertBinaryEmpty(remain)
def _struct_test(name, fields):
""" Generate a new Struct packing/unpacking test.
<fields> is a list of (field_name, field_type, field_value, field_binary):
- field_name:
name of the field, None if it's not a named field (e.g. LengthOf)
- field_type:
factory for the field type, taking one parameter only, the name of
the field and returning a rq.Field subclass instance
- field_value_in:
the raw value passed in when packing and expected output on unpacking
- field_binary:
the binary representation of the field value or a function to
convert it to binary for creating the expected result of packing
the struct
- field_value_out:
the raw value passed expected on output on unpacking
(optional, <field_value_in> is used if not specified)
"""
class_name = ''.join([part.capitalize() for part in re.sub(r'[^\w]+', ' ', name).split()])
class_name += 'StructTest'
struct_layout = []
values_in = OrderedDict()
binary = b''
values_out = OrderedDict()
for field_params in fields:
BA2E
assert 4 <= len(field_params) <= 5
field_name, field_type, field_value_in, field_binary = field_params[0:4]
if len(field_params) == 5:
field_value_out = field_params[4]
else:
field_value_out = field_value_in
struct_layout.append(field_type(field_name))
if field_name is not None:
if field_value_in is not None:
values_in[field_name] = field_value_in
if field_value_out is not None:
values_out[field_name] = field_value_out
if isinstance(field_binary, binary_type):
binary += field_binary
elif isinstance(field_binary, (types.FunctionType, types.LambdaType, partial)):
binary += field_binary(field_value_in)
else:
raise ValueError('unsupported type for binary: {data} [{type}]'.format(
data=str(field_binary), type=type(field_binary))
)
class_dict = {
'struct': rq.Struct(*struct_layout),
'values_in': values_in,
'binary': binary,
'values_out': values_out,
}
globals()[class_name] = type(class_name, (StructTest, TestCase), class_dict)
_struct_test('card', (
('c8' , rq.Card8 , 0x42 , partial(pack, 'B')),
('c16', rq.Card16, 0x666 , partial(pack, 'H')),
('c32', rq.Card32, 0xdeadbeef, partial(pack, 'L')),
))
_struct_test('int', (
('i8' , rq.Int8 , -42 , partial(pack, 'b')),
('i16', rq.Int16, -666 , partial(pack, 'h')),
('i32', rq.Int32, -2147483648, partial(pack, 'l')),
))
_struct_test('list', (
(None , lambda name: rq.LengthOf('lc8', 1) , None , pack('B', 2) ),
(None , lambda name: rq.LengthOf('lc16', 2) , None , pack('H', 3) ),
(None , lambda name: rq.LengthOf('lc32', 4) , None , pack('L', 5) ),
('lc8' , lambda name: rq.List(name, rq.Card8 , pad=0), [0x42, 0xc3] , lambda v: pack('2B' , *v)),
('lc16' , lambda name: rq.List(name, rq.Card16, pad=0), [666, 1, 60143] , lambda v: pack('3H' , *v)),
('lc32' , lambda name: rq.List(name, rq.Card32, pad=0), [0xf02facb, 666, 1, 0x1043, 0xdeadbeef], lambda v: pack('5L' , *v)),
))
_struct_test('list pad', (
(None , lambda name: rq.LengthOf('lc8', 1) , None , pack('B', 2) ),
(None , lambda name: rq.LengthOf('lc16', 2) , None , pack('H', 3) ),
(None , lambda name: rq.LengthOf('lc32', 4) , None , pack('L', 5) ),
('lc8' , lambda name: rq.List(name, rq.Card8 , pad=1), [0x42, 0xc3] , lambda v: pack('2B2x', *v)),
('lc16' , lambda name: rq.List(name, rq.Card16, pad=1), [666, 1, 60143] , lambda v: pack('3H2x', *v)),
('lc32' , lambda name: rq.List(name, rq.Card32, pad=1), [0xf02facb, 666, 1, 0x1043, 0xdeadbeef], lambda v: pack('5L' , *v)),
))
_struct_test('fixed list', (
('lc8' , lambda name: rq.FixedList(name, 2, rq.Card8 , pad=0), [0x42, 0xc3] , lambda v: pack('2B' , *v)),
('lc16' , lambda name: rq.FixedList(name, 3, rq.Card16, pad=0), [666, 1, 60143] , lambda v: pack('3H' , *v)),
('lc32' , lambda name: rq.FixedList(name, 5, rq.Card32, pad=0), [0xf02facb, 666, 1, 0x1043, 0xdeadbeef], lambda v: pack('5L' , *v)),
))
_struct_test('fixed list pad', (
('lc8p' , lambda name: rq.FixedList(name, 2, rq.Card8 , pad=1), [0x42, 0xc3] , lambda v: pack('2B2x', *v)),
('lc16p', lambda name: rq.FixedList(name, 3, rq.Card16, pad=1), [666, 1, 60143] , lambda v: pack('3H2x', *v)),
('lc32p', lambda name: rq.FixedList(name, 5, rq.Card32, pad=1), [0xf02facb, 666, 1, 0x1043, 0xdeadbeef], lambda v: pack('5L' , *v)),
))
_struct_test('string8', (
(None, lambda name: rq.LengthOf('s1', 1) , None , pack('B', 7) ),
(None, lambda name: rq.LengthOf('s2', 2) , None , pack('H', 13)),
(None, lambda name: rq.LengthOf('s3', 4) , None , pack('L', 34)),
('s1', lambda name: rq.String8(name, pad=0), "testing" , packstr ),
('s2', lambda name: rq.String8(name, pad=0), "one two three" , packstr ),
('s3', lambda name: rq.String8(name, pad=0), "supercalifragilisticexpialidocious", packstr ),
))
_struct_test('string8 pad', (
(None, lambda name: rq.LengthOf('s1', 1) , None , pack('B', 7) ),
(None, lambda name: rq.LengthOf('s2', 2) , None , pack('H', 13) ),
(None, lambda name: rq.LengthOf('s3', 4) , None , pack('L', 34) ),
('s1', lambda name: rq.String8(name, pad=1), "testing" , partial(packstr, padding=1)),
('s2', lambda name: rq.String8(name, pad=1), "one two three" , partial(packstr, padding=3)),
('s3', lambda name: rq.String8(name, pad=1), "supercalifragilisticexpialidocious", partial(packstr, padding=2)),
))
_struct_test('simple string16', (
(None, lambda name: rq.LengthOf('s1', 1) , None , pack('B', 3) ),
(None, lambda name: rq.LengthOf('s2', 2) , None , pack('H', 3) ),
('s1', lambda name: rq.String16(name, pad=0), (0, 1, 2), lambda s: struct.pack('>' + 'H' * len(s), *s)),
# An 8-bits string is also allowed on input.
('s2', lambda name: rq.String16(name, pad=0), b'\x03\x04\x05', lambda s: struct.pack('>' + 'H' * len(s), *iterbytes(s)), (3, 4, 5)),
))
_struct_test('binary', (
(None, lambda name: rq.LengthOf('s1', 1) , None , pack('B', 7) ),
(None, lambda name: rq.LengthOf('s2', 2) , None , pack('H', 13)),
(None, lambda name: rq.LengthOf('s3', 4) , None , pack('L', 34)),
('s1', lambda name: rq.Binary(name, pad=0), b"testing" , lambda v: v),
('s2', lambda name: rq.Binary(name, pad=0), b"one two three" , lambda v: v),
('s3', lambda name: rq.Binary(name, pad=0), b"supercalifragilisticexpialidocious", lambda v: v),
))
_struct_test('binary pad', (
(None, lambda name: rq.LengthOf('s1', 1) , None , pack('B', 7) ),
(None, lambda name: rq.LengthOf('s2', 2) , None , pack('H', 13)),
(None, lambda name: rq.LengthOf('s3', 4) , None , pack('L', 34)),
('s1', lambda name: rq.Binary(name, pad=1), b"testing" , lambda v: v + b'\0' * 1),
('s2', lambda name: rq.Binary(name, pad=1), b"one two three" , lambda v: v + b'\0' * 3),
('s3', lambda name: rq.Binary(name, pad=1), b"supercalifragilisticexpialidocious", lambda v: v + b'\0' * 2),
))
_struct_test('fixed binary', (
('s1', lambda name: rq.FixedBinary(name, 7 ), b"testing" , lambda v: v),
('s2', lambda name: rq.FixedBinary(name, 13), b"one two three" , lambda v: v),
('s3', lambda name: rq.FixedBinary(name, 34), b"supercalifragilisticexpialidocious", lambda v: v),
# Make sure fixed binary fields are handled as static fields.
('c8', rq.Card8, 0x42, partial(pack, 'B')),
))