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# frozen_string_literal: false
begin
require_relative 'helper'
rescue LoadError
end
module Fiddle
class TestClosure < Fiddle::TestCase
def test_argument_errors
assert_raises(TypeError) do
Closure.new(TYPE_INT, TYPE_INT)
end
assert_raises(TypeError) do
Closure.new('foo', [TYPE_INT])
end
assert_raises(TypeError) do
Closure.new(TYPE_INT, ['meow!'])
end
end
def test_call
closure = Class.new(Closure) {
def call
10
end
}.new(TYPE_INT, [])
func = Function.new(closure, [], TYPE_INT)
assert_equal 10, func.call
end
def test_returner
closure = Class.new(Closure) {
def call thing
thing
end
}.new(TYPE_INT, [TYPE_INT])
func = Function.new(closure, [TYPE_INT], TYPE_INT)
assert_equal 10, func.call(10)
end
def test_block_caller
cb = Closure::BlockCaller.new(TYPE_INT, [TYPE_INT]) do |one|
one
end
func = Function.new(cb, [TYPE_INT], TYPE_INT)
assert_equal 11, func.call(11)
end
def test_memsize
require 'objspace'
bug = '[ruby-dev:42480]'
n = 10000
assert_equal(n, n.times {ObjectSpace.memsize_of(Closure.allocate)}, bug)
end
%w[INT SHORT CHAR LONG LONG_LONG].each do |name|
type = Fiddle.const_get("TYPE_#{name}") rescue next
size = Fiddle.const_get("SIZEOF_#{name}")
[[type, size-1, name], [-type, size, "unsigned_"+name]].each do |t, s, n|
define_method("test_conversion_#{n.downcase}") do
arg = nil
clos = Class.new(Closure) do
define_method(:call) {|x| arg = x}
end.new(t, [t])
v = ~(~0 << (8*s))
arg = nil
assert_equal(v, clos.call(v))
assert_equal(arg, v, n)
arg = nil
func = Function.new(clos, [t], t)
assert_equal(v, func.call(v))
assert_equal(arg, v, n)
end
end
end
end
end if defined?(Fiddle)
|
