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
|
# coding: utf-8
PACK_IS_LITTLE_ENDIAN = "\x01\00".unpack('S')[0] == 0x01
def assert_pack tmpl, packed, unpacked
t = tmpl.inspect
assert "assert_pack" do
assert_equal packed, unpacked.pack(tmpl), "#{unpacked.inspect}.pack(#{t})"
assert_equal unpacked, packed.unpack(tmpl), "#{packed.inspect}.unpack(#{t})"
end
end
# pack & unpack 'm' (base64)
assert('pack("m")') do
assert_pack "m", "", [""]
assert_pack "m", "AA==\n", ["\0"]
assert_pack "m", "AAA=\n", ["\0\0"]
assert_pack "m", "AAAA\n", ["\0\0\0"]
assert_pack "m", "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNERUZHSElKS0xNTk9QUVJT\nVFVWV1hZWg==\n", ["abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"]
ary = ["abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"]
assert_equal ary, "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNERUZHSElKS0xNTk9QUVJT\nVFVWV1hZWg==\n".unpack("m")
assert_equal ary, "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNERUZHSElKS0xNTk9QUVJTVFVWV1hZWg==\n".unpack("m")
assert_equal "QQ==\n", ["A", "B"].pack("m50")
assert_equal ["A"], "QQ==\n".unpack("m50")
assert_equal "QQ==Qg==", ["A", "B"].pack("m0 m0")
assert_equal ["A", "B"], "QQ==Qg==".unpack("m10 m10")
assert_pack "m0", "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNERUZHSElKS0xNTk9QUVJTVFVWV1hZWg==", ["abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"]
end
# pack & unpack 'M' (Quoted-printable)
assert('pack("M")') do
assert_pack "M", "123=\n", ["123"]
assert_pack "M", "=3D\n", ["=\n"]
assert_pack "M", "=E3=81=82=\n", ["あ"]
assert_equal ["123"], "123=\n".unpack("M")
assert_equal ["=\n"], "=3D\n".unpack("M")
assert_equal ["あ"], "=E3=81=82=\n".unpack("M")
end
# pack & unpack 'H'
assert('pack("H")') do
assert_pack "H*", "01", ["3031"]
assert_pack "H*", "\020", ["10"]
end
assert('pack("C")') do
assert_pack "C*", "\x00\x01\x7F\x80\xFF", [0, 1, 127, 128, 255]
end
assert('pack("a")') do
assert_equal "a", ["abc"].pack("a")
assert_equal "abc", ["abc"].pack("a*")
assert_equal "abc\0", ["abc"].pack("a4")
assert_equal ["abc\0"], "abc\0".unpack("a4")
assert_equal ["abc "], "abc ".unpack("a4")
end
assert('pack("A")') do
assert_equal "a", ["abc"].pack("A")
assert_equal "abc", ["abc"].pack("A*")
assert_equal "abc ", ["abc"].pack("A4")
assert_equal ["abc"], "abc\0".unpack("A4")
assert_equal ["abc"], "abc ".unpack("A4")
end
# regression tests
assert('issue #1') do
assert_equal "\000\001\000\002", [1, 2].pack("nn")
end
assert 'pack float' do
skip unless Object.const_defined?(:Float)
assert_pack 'e', "\x00\x00@@", [3.0]
assert_pack 'g', "@@\x00\x00", [3.0]
if PACK_IS_LITTLE_ENDIAN
assert_pack 'f', "\x00\x00@@", [3.0]
assert_pack 'F', "\x00\x00@@", [3.0]
else
assert_pack 'f', "@@\x00\x00", [3.0]
assert_pack 'F', "@@\x00\x00", [3.0]
end
end
assert 'pack double' do
skip unless Object.const_defined?(:Float)
assert_pack 'E', "\x00\x00\x00\x00\x00\x00\b@", [3.0]
assert_pack 'G', "@\b\x00\x00\x00\x00\x00\x00", [3.0]
if PACK_IS_LITTLE_ENDIAN
assert_pack 'd', "\x00\x00\x00\x00\x00\x00\b@", [3.0]
assert_pack 'D', "\x00\x00\x00\x00\x00\x00\b@", [3.0]
else
assert_pack 'd', "@\b\x00\x00\x00\x00\x00\x00", [3.0]
assert_pack 'D', "@\b\x00\x00\x00\x00\x00\x00", [3.0]
end
end
assert 'pack/unpack "i"' do
int_size = [0].pack('i').size
raise "pack('i').size is too small (#{int_size})" if int_size < 2
if PACK_IS_LITTLE_ENDIAN
str = "\xC7\xCF" + "\xFF" * (int_size-2)
else
str = "\xFF" * (int_size-2) + "\xCF\xC7"
end
assert_pack 'i', str, [-12345]
end
assert 'pack/unpack "I"' do
uint_size = [0].pack('I').size
raise "pack('I').size is too small (#{uint_size})" if uint_size < 2
if PACK_IS_LITTLE_ENDIAN
str = "\x39\x30" + "\0" * (uint_size-2)
else
str = "\0" * (uint_size-2) + "\x30\x39"
end
assert_pack 'I', str, [12345]
end
assert 'pack/unpack "w"' do
for x in [0,1,127,128,16383,16384,65535,65536]
assert_equal [x], [x].pack("w").unpack("w")
end
end
assert 'pack/unpack "U"' do
assert_equal [], "".unpack("U")
assert_equal [], "".unpack("U*")
assert_equal [65, 66], "ABC".unpack("U2")
assert_equal [12371, 12435, 12395, 12385, 12399, 19990, 30028], "こんにちは世界".unpack("U*")
assert_equal "", [].pack("U")
assert_equal "", [].pack("U*")
assert_equal "AB", [65, 66, 67].pack("U2")
assert_equal "こんにちは世界", [12371, 12435, 12395, 12385, 12399, 19990, 30028].pack("U*")
assert_equal "\000", [0].pack("U")
assert_raise(RangeError) { [-0x40000000].pack("U") }
assert_raise(RangeError) { [-1].pack("U") }
assert_raise(RangeError) { [0x40000000].pack("U") }
end
|
