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|
# frozen_string_literal: true
begin
require_relative 'helper'
rescue LoadError
end
module Fiddle
class TestFunction < Fiddle::TestCase
def setup
super
Fiddle.last_error = nil
end
def test_default_abi
func = Function.new(@libm['sin'], [TYPE_DOUBLE], TYPE_DOUBLE)
assert_equal Function::DEFAULT, func.abi
end
def test_name
func = Function.new(@libm['sin'], [TYPE_DOUBLE], TYPE_DOUBLE, name: 'sin')
assert_equal 'sin', func.name
end
def test_argument_errors
assert_raise(TypeError) do
Function.new(@libm['sin'], TYPE_DOUBLE, TYPE_DOUBLE)
end
assert_raise(TypeError) do
Function.new(@libm['sin'], ['foo'], TYPE_DOUBLE)
end
assert_raise(TypeError) do
Function.new(@libm['sin'], [TYPE_DOUBLE], 'foo')
end
end
def test_argument_type_conversion
type = Struct.new(:int, :call_count) do
def initialize(int)
super(int, 0)
end
def to_int
raise "exhausted" if (self.call_count += 1) > 1
self.int
end
end
type_arg = type.new(TYPE_DOUBLE)
type_result = type.new(TYPE_DOUBLE)
assert_nothing_raised(RuntimeError) do
Function.new(@libm['sin'], [type_arg], type_result)
end
assert_equal(1, type_arg.call_count)
assert_equal(1, type_result.call_count)
end
def test_call
func = Function.new(@libm['sin'], [TYPE_DOUBLE], TYPE_DOUBLE)
assert_in_delta 1.0, func.call(90 * Math::PI / 180), 0.0001
end
def test_argument_count
closure = Class.new(Closure) {
def call one
10 + one
end
}.new(TYPE_INT, [TYPE_INT])
func = Function.new(closure, [TYPE_INT], TYPE_INT)
assert_raise(ArgumentError) do
func.call(1,2,3)
end
assert_raise(ArgumentError) do
func.call
end
end
def test_last_error
func = Function.new(@libc['strcpy'], [TYPE_VOIDP, TYPE_VOIDP], TYPE_VOIDP)
assert_nil Fiddle.last_error
func.call(+"000", "123")
refute_nil Fiddle.last_error
end
def test_strcpy
f = Function.new(@libc['strcpy'], [TYPE_VOIDP, TYPE_VOIDP], TYPE_VOIDP)
buff = +"000"
str = f.call(buff, "123")
assert_equal("123", buff)
assert_equal("123", str.to_s)
end
def test_nogvl_poll
# XXX hack to quiet down CI errors on EINTR from r64353
# [ruby-core:88360] [Misc #14937]
# Making pipes (and sockets) non-blocking by default would allow
# us to get rid of POSIX timers / timer pthread
# https://bugs.ruby-lang.org/issues/14968
IO.pipe { |r,w| IO.select([r], [w]) }
begin
poll = @libc['poll']
rescue Fiddle::DLError
skip 'poll(2) not available'
end
f = Function.new(poll, [TYPE_VOIDP, TYPE_INT, TYPE_INT], TYPE_INT)
msec = 200
t0 = Process.clock_gettime(Process::CLOCK_MONOTONIC, :millisecond)
th = Thread.new { f.call(nil, 0, msec) }
n1 = f.call(nil, 0, msec)
n2 = th.value
t1 = Process.clock_gettime(Process::CLOCK_MONOTONIC, :millisecond)
delta = EnvUtil.apply_timeout_scale(180)
assert_in_delta(msec, t1 - t0, delta, 'slept amount of time')
assert_equal(0, n1, perror("poll(2) in main-thread"))
assert_equal(0, n2, perror("poll(2) in sub-thread"))
end
def test_no_memory_leak
prep = 'r = Fiddle::Function.new(Fiddle.dlopen(nil)["rb_obj_frozen_p"], [Fiddle::TYPE_UINTPTR_T], Fiddle::TYPE_UINTPTR_T); a = "a"'
code = 'begin r.call(a); rescue TypeError; end'
assert_no_memory_leak(%w[-W0 -rfiddle], "#{prep}\n1000.times{#{code}}", "10_000.times {#{code}}", limit: 1.2)
end
private
def perror(m)
proc do
if e = Fiddle.last_error
m = "#{m}: #{SystemCallError.new(e).message}"
end
m
end
end
end
end if defined?(Fiddle)
|
