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require_relative 'test_base'
require 'dl/func'
module DL
class TestFunc < TestBase
def test_name
f = Function.new(CFunc.new(@libc['strcpy'], TYPE_VOIDP, 'strcpy'),
[TYPE_VOIDP, TYPE_VOIDP])
assert_equal 'strcpy', f.name
end
def test_name_with_block
begin
cb = Function.new(CFunc.new(0, TYPE_INT, '<callback>qsort'),
[TYPE_VOIDP, TYPE_VOIDP]){|x,y| CPtr.new(x)[0] <=> CPtr.new(y)[0]}
assert_equal('<callback>qsort', cb.name)
ensure
cb.unbind if cb # max number of callbacks is limited to MAX_CALLBACK
end
end
def test_bound
f = Function.new(CFunc.new(0, TYPE_INT, 'test'), [TYPE_INT, TYPE_INT])
assert_equal false, f.bound?
begin
f.bind { |x,y| x + y }
assert_equal true, f.bound?
ensure
f.unbind # max number of callbacks is limited to MAX_CALLBACK
end
end
def test_bound_for_callback_closure
begin
f = Function.new(CFunc.new(0, TYPE_INT, 'test'),
[TYPE_INT, TYPE_INT]) { |x,y| x + y }
assert_equal true, f.bound?
ensure
f.unbind if f # max number of callbacks is limited to MAX_CALLBACK
end
end
def test_unbind
f = Function.new(CFunc.new(0, TYPE_INT, 'test'), [TYPE_INT, TYPE_INT])
begin
f.bind { |x, y| x + y }
assert_nothing_raised { f.unbind }
assert_equal false, f.bound?
# unbind() after unbind() should not raise error
assert_nothing_raised { f.unbind }
ensure
f.unbind # max number of callbacks is limited to MAX_CALLBACK
end
end
def test_unbind_normal_function
f = Function.new(CFunc.new(@libc['strcpy'], TYPE_VOIDP, 'strcpy'),
[TYPE_VOIDP, TYPE_VOIDP])
assert_nothing_raised { f.unbind }
assert_equal false, f.bound?
# unbind() after unbind() should not raise error
assert_nothing_raised { f.unbind }
end
def test_bind
f = Function.new(CFunc.new(0, TYPE_INT, 'test'), [TYPE_INT, TYPE_INT])
begin
assert_nothing_raised {
f.bind { |x, y| x + y }
}
assert_equal 579, f.call(123, 456)
ensure
f.unbind # max number of callbacks is limited to MAX_CALLBACK
end
end
def test_to_i
cfunc = CFunc.new(@libc['strcpy'], TYPE_VOIDP, 'strcpy')
f = Function.new(cfunc, [TYPE_VOIDP, TYPE_VOIDP])
assert_equal cfunc.to_i, f.to_i
end
def test_random
f = Function.new(CFunc.new(@libc['srand'], TYPE_VOID, 'srand'),
[-TYPE_LONG])
assert_nil f.call(10)
end
def test_sinf
return if /x86_64/ =~ RUBY_PLATFORM
begin
f = Function.new(CFunc.new(@libm['sinf'], TYPE_FLOAT, 'sinf'),
[TYPE_FLOAT])
rescue DL::DLError
skip "libm may not have sinf()"
end
assert_in_delta 1.0, f.call(90 * Math::PI / 180), 0.0001
end
def test_sin
return if /x86_64/ =~ RUBY_PLATFORM
f = Function.new(CFunc.new(@libm['sin'], TYPE_DOUBLE, 'sin'),
[TYPE_DOUBLE])
assert_in_delta 1.0, f.call(90 * Math::PI / 180), 0.0001
end
def test_strcpy()
f = Function.new(CFunc.new(@libc['strcpy'], TYPE_VOIDP, 'strcpy'),
[TYPE_VOIDP, TYPE_VOIDP])
buff = "000"
str = f.call(buff, "123")
assert_equal("123", buff)
assert_equal("123", str.to_s)
end
def test_string()
stress, GC.stress = GC.stress, true
f = Function.new(CFunc.new(@libc['strcpy'], TYPE_VOIDP, 'strcpy'),
[TYPE_VOIDP, TYPE_VOIDP])
buff = "000"
str = f.call(buff, "123")
assert_equal("123", buff)
assert_equal("123", str.to_s)
ensure
GC.stress = stress
end
def test_isdigit()
f = Function.new(CFunc.new(@libc['isdigit'], TYPE_INT, 'isdigit'),
[TYPE_INT])
r1 = f.call(?1.ord)
r2 = f.call(?2.ord)
rr = f.call(?r.ord)
assert_positive(r1)
assert_positive(r2)
assert_zero(rr)
end
def test_atof()
f = Function.new(CFunc.new(@libc['atof'], TYPE_DOUBLE, 'atof'),
[TYPE_VOIDP])
r = f.call("12.34")
assert_match(12.00..13.00, r)
end
def test_strtod()
f = Function.new(CFunc.new(@libc['strtod'], TYPE_DOUBLE, 'strtod'),
[TYPE_VOIDP, TYPE_VOIDP])
buff1 = CPtr["12.34"]
buff2 = buff1 + 4
r = f.call(buff1, - buff2)
assert_in_delta(12.34, r, 0.001)
end
def test_qsort1()
assert_separately(%W[--disable=gems -r#{__dir__}/test_base.rb -rdl/func], __FILE__, __LINE__, <<-"end;")
include DL
@libc = dlopen(LIBC_SO)
@libm = dlopen(LIBM_SO)
begin
cb = Function.new(CFunc.new(0, TYPE_INT, '<callback>qsort'),
[TYPE_VOIDP, TYPE_VOIDP]){|x,y| CPtr.new(x)[0] <=> CPtr.new(y)[0]}
qsort = Function.new(CFunc.new(@libc['qsort'], TYPE_VOID, 'qsort'),
[TYPE_VOIDP, TYPE_SIZE_T, TYPE_SIZE_T, TYPE_VOIDP])
buff = "9341"
qsort.call(buff, buff.size, 1, cb)
assert_equal("1349", buff)
bug4929 = '[ruby-core:37395]'
buff = "9341"
EnvUtil.under_gc_stress {qsort.call(buff, buff.size, 1, cb)}
assert_equal("1349", buff, bug4929)
ensure
cb.unbind if cb # max number of callbacks is limited to MAX_CALLBACK
end
end;
end
def test_qsort2()
cb = TempFunction.new(CFunc.new(0, TYPE_INT, '<callback>qsort'),
[TYPE_VOIDP, TYPE_VOIDP])
qsort = Function.new(CFunc.new(@libc['qsort'], TYPE_VOID, 'qsort'),
[TYPE_VOIDP, TYPE_SIZE_T, TYPE_SIZE_T, TYPE_VOIDP])
buff = "9341"
qsort.call(buff, buff.size, 1, cb){|x,y| CPtr.new(x)[0] <=> CPtr.new(y)[0]}
assert_equal("1349", buff)
end
end
end
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