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
|
# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import sys
import module as mojom
import pack
import test_support
EXPECT_EQ = test_support.EXPECT_EQ
EXPECT_TRUE = test_support.EXPECT_TRUE
RunTest = test_support.RunTest
def TestOrdinalOrder():
errors = 0
struct = mojom.Struct('test')
struct.AddField('testfield1', mojom.INT32, 2)
struct.AddField('testfield2', mojom.INT32, 1)
ps = pack.PackedStruct(struct)
errors += EXPECT_EQ(2, len(ps.packed_fields))
errors += EXPECT_EQ('testfield2', ps.packed_fields[0].field.name)
errors += EXPECT_EQ('testfield1', ps.packed_fields[1].field.name)
return errors
def TestZeroFields():
errors = 0
struct = mojom.Struct('test')
ps = pack.PackedStruct(struct)
errors += EXPECT_EQ(0, len(ps.packed_fields))
return errors
def TestOneField():
errors = 0
struct = mojom.Struct('test')
struct.AddField('testfield1', mojom.INT8)
ps = pack.PackedStruct(struct)
errors += EXPECT_EQ(1, len(ps.packed_fields))
return errors
# Pass three tuples.
# |kinds| is a sequence of mojom.Kinds that specify the fields that are to
# be created.
# |fields| is the expected order of the resulting fields, with the integer
# "1" first.
# |offsets| is the expected order of offsets, with the integer "0" first.
def TestSequence(kinds, fields, offsets):
errors = 0
struct = mojom.Struct('test')
index = 1
for kind in kinds:
struct.AddField("%d" % index, kind)
index += 1
ps = pack.PackedStruct(struct)
num_fields = len(ps.packed_fields)
errors += EXPECT_EQ(len(kinds), num_fields)
for i in xrange(num_fields):
EXPECT_EQ("%d" % fields[i], ps.packed_fields[i].field.name)
EXPECT_EQ(offsets[i], ps.packed_fields[i].offset)
return errors
def TestPaddingPackedInOrder():
return TestSequence(
(mojom.INT8, mojom.UINT8, mojom.INT32),
(1, 2, 3),
(0, 1, 4))
def TestPaddingPackedOutOfOrder():
return TestSequence(
(mojom.INT8, mojom.INT32, mojom.UINT8),
(1, 3, 2),
(0, 1, 4))
def TestPaddingPackedOverflow():
kinds = (mojom.INT8, mojom.INT32, mojom.INT16, mojom.INT8, mojom.INT8)
# 2 bytes should be packed together first, followed by short, then by int.
fields = (1, 4, 3, 2, 5)
offsets = (0, 1, 2, 4, 8)
return TestSequence(kinds, fields, offsets)
def TestNullableTypes():
kinds = (mojom.STRING.MakeNullableKind(),
mojom.HANDLE.MakeNullableKind(),
mojom.Struct('test_struct').MakeNullableKind(),
mojom.DCPIPE.MakeNullableKind(),
mojom.Array().MakeNullableKind(),
mojom.DPPIPE.MakeNullableKind(),
mojom.Array(length=5).MakeNullableKind(),
mojom.MSGPIPE.MakeNullableKind(),
mojom.Interface('test_inteface').MakeNullableKind(),
mojom.SHAREDBUFFER.MakeNullableKind(),
mojom.InterfaceRequest().MakeNullableKind())
fields = (1, 2, 4, 3, 5, 6, 8, 7, 9, 10, 11)
offsets = (0, 8, 12, 16, 24, 32, 36, 40, 48, 52, 56)
return TestSequence(kinds, fields, offsets)
def TestAllTypes():
return TestSequence(
(mojom.BOOL, mojom.INT8, mojom.STRING, mojom.UINT8,
mojom.INT16, mojom.DOUBLE, mojom.UINT16,
mojom.INT32, mojom.UINT32, mojom.INT64,
mojom.FLOAT, mojom.STRING, mojom.HANDLE,
mojom.UINT64, mojom.Struct('test'), mojom.Array(),
mojom.STRING.MakeNullableKind()),
(1, 2, 4, 5, 7, 3, 6, 8, 9, 10, 11, 13, 12, 14, 15, 16, 17, 18),
(0, 1, 2, 4, 6, 8, 16, 24, 28, 32, 40, 44, 48, 56, 64, 72, 80, 88))
def TestPaddingPackedOutOfOrderByOrdinal():
errors = 0
struct = mojom.Struct('test')
struct.AddField('testfield1', mojom.INT8)
struct.AddField('testfield3', mojom.UINT8, 3)
struct.AddField('testfield2', mojom.INT32, 2)
ps = pack.PackedStruct(struct)
errors += EXPECT_EQ(3, len(ps.packed_fields))
# Second byte should be packed in behind first, altering order.
errors += EXPECT_EQ('testfield1', ps.packed_fields[0].field.name)
errors += EXPECT_EQ('testfield3', ps.packed_fields[1].field.name)
errors += EXPECT_EQ('testfield2', ps.packed_fields[2].field.name)
# Second byte should be packed with first.
errors += EXPECT_EQ(0, ps.packed_fields[0].offset)
errors += EXPECT_EQ(1, ps.packed_fields[1].offset)
errors += EXPECT_EQ(4, ps.packed_fields[2].offset)
return errors
def TestBools():
errors = 0
struct = mojom.Struct('test')
struct.AddField('bit0', mojom.BOOL)
struct.AddField('bit1', mojom.BOOL)
struct.AddField('int', mojom.INT32)
struct.AddField('bit2', mojom.BOOL)
struct.AddField('bit3', mojom.BOOL)
struct.AddField('bit4', mojom.BOOL)
struct.AddField('bit5', mojom.BOOL)
struct.AddField('bit6', mojom.BOOL)
struct.AddField('bit7', mojom.BOOL)
struct.AddField('bit8', mojom.BOOL)
ps = pack.PackedStruct(struct)
errors += EXPECT_EQ(10, len(ps.packed_fields))
# First 8 bits packed together.
for i in xrange(8):
pf = ps.packed_fields[i]
errors += EXPECT_EQ(0, pf.offset)
errors += EXPECT_EQ("bit%d" % i, pf.field.name)
errors += EXPECT_EQ(i, pf.bit)
# Ninth bit goes into second byte.
errors += EXPECT_EQ("bit8", ps.packed_fields[8].field.name)
errors += EXPECT_EQ(1, ps.packed_fields[8].offset)
errors += EXPECT_EQ(0, ps.packed_fields[8].bit)
# int comes last.
errors += EXPECT_EQ("int", ps.packed_fields[9].field.name)
errors += EXPECT_EQ(4, ps.packed_fields[9].offset)
return errors
def Main(args):
errors = 0
errors += RunTest(TestZeroFields)
errors += RunTest(TestOneField)
errors += RunTest(TestPaddingPackedInOrder)
errors += RunTest(TestPaddingPackedOutOfOrder)
errors += RunTest(TestPaddingPackedOverflow)
errors += RunTest(TestNullableTypes)
errors += RunTest(TestAllTypes)
errors += RunTest(TestPaddingPackedOutOfOrderByOrdinal)
errors += RunTest(TestBools)
return errors
if __name__ == '__main__':
sys.exit(Main(sys.argv[1:]))
|
