require_relative 'test_base.rb' require 'dl/callback' module DL class TestDL < TestBase 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() pi_2 = Math::PI/2 cfunc = CFunc.new(@libm['sin'], TYPE_DOUBLE, 'sin') x = cfunc.call([pi_2].pack("d").unpack("l!*")) assert_equal(Math.sin(pi_2), x) cfunc = CFunc.new(@libm['sin'], TYPE_DOUBLE, 'sin') x = cfunc.call([-pi_2].pack("d").unpack("l!*")) 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([buff,str].pack("pp").unpack("l!*")) 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([buff,str,3].pack("ppL!").unpack("l!*")) 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,str].pack("l!p").unpack("l!*")) 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([buff, buff.size, 1, cb].pack("pL!L!L!").unpack("l!*")) 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_cptr() check = Proc.new{|str,ptr| assert_equal(str.size(), ptr.size()) assert_equal(str, ptr.to_s()) assert_equal(str[0,2], ptr.to_s(2)) assert_equal(str[0,2], ptr[0,2]) assert_equal(str[1,2], ptr[1,2]) assert_equal(str[1,0], ptr[1,0]) assert_equal(str[0].ord, ptr[0]) assert_equal(str[1].ord, ptr[1]) } str = 'abc' ptr = CPtr[str] check.call(str, ptr) str[0] = "c" ptr[0] = "c".ord check.call(str, ptr) str[0,2] = "aa" ptr[0,2] = "aa" check.call(str, ptr) end end end # module DL