require File.dirname(__FILE__) + '/../lib/add_hook'

def main_method first_arg, second_arg, *splat_of_args
end

describe Object, '#add_hook' do

  it 'should be able to add a hook to an object in the main scope' do
    times_called = 0
    
    main_method 1, 2, 3, 4, 5
    times_called.should == 0

    add_hook(:main_method) do |obj, *args|
      # puts "called main_method on #{ obj } with args: #{ args.inspect }"
      times_called += 1
    end

    times_called.should == 0
    main_method 1, 2, 3, 4, 5
    times_called.should == 1
  end

  it 'should be able to add a hook to objects' do
    object = []
    times_called = 0

    object << 'x'
    times_called.should == 0

    object.add_hook(:<<){|obj, *args| times_called += 1 }

    object << 'x'
    times_called.should == 1

    object << 'x'
    times_called.should == 2

    # should not effect other arrays
    object = []
    object << 'x'
    times_called.should == 2 # should still be 2
  end

end