require File.dirname(__FILE__) + '/test_helper'
 
context "properly handles and wraps function pointer arguments" do
 
  def setup
    if !defined?(@@function_pointers)
      super
      @@function_pointers = true 
      Extension.new "function_pointers" do |e|
        e.sources full_dir("headers/function_pointers.h")
        node = e.namespace "function_pointers"
      end
 
      require 'function_pointers'
    end
  end
 
  specify "no arguments, no return" do
    proc_called = false
 
    set_callback do
      proc_called = true
    end
 
    call_callback
 
    assert proc_called
  end
 
  specify "arguments, no return" do
    proc_arg = nil
 
    set_callback_with_args do |i|
      proc_arg = i
    end
 
    call_callback_with_args(10)
 
    proc_arg.should == 10
  end
 
  specify "arguments and return" do
    proc_arg = nil
    set_callback_returns do |i|
      proc_arg = i
      i * 10
    end
 
    ret = call_callback_returns(8)
 
    proc_arg.should == 8
    ret.should == 80
  end
 
end