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
|
require_relative 'test_base.rb'
require 'dl/callback'
require 'dl/func'
require 'dl/pack'
module DL
class TestDL < TestBase
def ptr2num(*list)
list.pack("p*").unpack(PackInfo::PACK_MAP[TYPE_VOIDP] + "*")
end
# TODO: refactor test repetition
def test_realloc
str = "abc"
ptr_id = DL.realloc(0, 4)
ptr = CPtr.new(ptr_id, 4)
assert_equal ptr_id, ptr.to_i
cfunc = CFunc.new(@libc['strcpy'], TYPE_VOIDP, 'strcpy')
cfunc.call([ptr_id,str].pack("l!p").unpack("l!*"))
assert_equal("abc\0", ptr[0,4])
DL.free ptr_id
end
def test_malloc
str = "abc"
ptr_id = DL.malloc(4)
ptr = CPtr.new(ptr_id, 4)
assert_equal ptr_id, ptr.to_i
cfunc = CFunc.new(@libc['strcpy'], TYPE_VOIDP, 'strcpy')
cfunc.call([ptr_id,str].pack("l!p").unpack("l!*"))
assert_equal("abc\0", ptr[0,4])
DL.free ptr_id
end
def test_call_int()
cfunc = CFunc.new(@libc['atoi'], TYPE_INT, 'atoi')
x = cfunc.call(["100"].pack("p").unpack("l!*"))
assert_equal(100, x)
cfunc = CFunc.new(@libc['atoi'], TYPE_INT, 'atoi')
x = cfunc.call(["-100"].pack("p").unpack("l!*"))
assert_equal(-100, x)
end
def test_call_long()
cfunc = CFunc.new(@libc['atol'], TYPE_LONG, 'atol')
x = cfunc.call(["100"].pack("p").unpack("l!*"))
assert_equal(100, x)
cfunc = CFunc.new(@libc['atol'], TYPE_LONG, 'atol')
x = cfunc.call(["-100"].pack("p").unpack("l!*"))
assert_equal(-100, x)
end
def test_call_double()
cfunc = CFunc.new(@libc['atof'], TYPE_DOUBLE, 'atof')
x = cfunc.call(["0.1"].pack("p").unpack("l!*"))
assert_in_delta(0.1, x)
cfunc = CFunc.new(@libc['atof'], TYPE_DOUBLE, 'atof')
x = cfunc.call(["-0.1"].pack("p").unpack("l!*"))
assert_in_delta(-0.1, x)
end
def test_sin
return if /x86_64/ =~ RUBY_PLATFORM
pi_2 = Math::PI/2
cfunc = Function.new(CFunc.new(@libm['sin'], TYPE_DOUBLE, 'sin'),
[TYPE_DOUBLE])
x = cfunc.call(pi_2)
assert_equal(Math.sin(pi_2), x)
cfunc = Function.new(CFunc.new(@libm['sin'], TYPE_DOUBLE, 'sin'),
[TYPE_DOUBLE])
x = cfunc.call(-pi_2)
assert_equal(Math.sin(-pi_2), x)
end
def test_strlen()
cfunc = CFunc.new(@libc['strlen'], TYPE_INT, 'strlen')
x = cfunc.call(["abc"].pack("p").unpack("l!*"))
assert_equal("abc".size, x)
end
def test_strcpy()
buff = "xxxx"
str = "abc"
cfunc = CFunc.new(@libc['strcpy'], TYPE_VOIDP, 'strcpy')
x = cfunc.call(ptr2num(buff,str))
assert_equal("abc\0", buff)
assert_equal("abc\0", CPtr.new(x).to_s(4))
buff = "xxxx"
str = "abc"
cfunc = CFunc.new(@libc['strncpy'], TYPE_VOIDP, 'strncpy')
x = cfunc.call(ptr2num(buff,str) + [3])
assert_equal("abcx", buff)
assert_equal("abcx", CPtr.new(x).to_s(4))
ptr = CPtr.malloc(4)
str = "abc"
cfunc = CFunc.new(@libc['strcpy'], TYPE_VOIDP, 'strcpy')
x = cfunc.call([ptr.to_i, *ptr2num(str)])
assert_equal("abc\0", ptr[0,4])
assert_equal("abc\0", CPtr.new(x).to_s(4))
end
def test_callback()
buff = "foobarbaz"
cb = set_callback(TYPE_INT,2){|x,y| CPtr.new(x)[0] <=> CPtr.new(y)[0]}
cfunc = CFunc.new(@libc['qsort'], TYPE_VOID, 'qsort')
cfunc.call(ptr2num(buff) + [buff.size, 1, cb])
assert_equal('aabbfoorz', buff)
end
def test_dlwrap()
ary = [0,1,2,4,5]
addr = dlwrap(ary)
ary2 = dlunwrap(addr)
assert_equal(ary, ary2)
end
def test_type_size_t
assert_equal(DL::TYPE_SSIZE_T, DL::TYPE_SIZE_T.abs)
end
def test_type_uintptr_t
assert_equal(-DL::TYPE_INTPTR_T, DL::TYPE_UINTPTR_T)
end
def test_sizeof_uintptr_t
assert_equal(DL::SIZEOF_VOIDP, DL::SIZEOF_INTPTR_T)
end
end
end # module DL
|