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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_free_secure
assert_raises(SecurityError) do
Thread.new do
$SAFE = 4
DL.free(0)
end.join
end
end
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')
x = cfunc.call([ptr_id,str].pack("l!p").unpack("l!*"))
assert_equal("abc\0", ptr[0,4])
DL.free ptr_id
end
def test_realloc_secure
assert_raises(SecurityError) do
Thread.new do
$SAFE = 4
DL.realloc(0, 4)
end.join
end
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')
x = 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_security
assert_raises(SecurityError) do
Thread.new do
$SAFE = 4
DL.malloc(4)
end.join
end
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
end
end # module DL
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