#--
# =============================================================================
# Copyright (c) 2004, Jamis Buck (jgb3@email.byu.edu)
# All rights reserved.
#
# This source file is distributed as part of the Needle dependency injection
# library for Ruby. This file (and the library as a whole) may be used only as
# allowed by either the BSD license, or the Ruby license (or, by association
# with the Ruby license, the GPL). See the "doc" subdirectory of the Needle
# distribution for the texts of these licenses.
# -----------------------------------------------------------------------------
# needle website : http://needle.rubyforge.org
# project website: http://rubyforge.org/projects/needle
# =============================================================================
#++

$:.unshift "../../lib"

require "needle/lifecycle/singleton"
require "test/unit"

class TC_Lifecycle_Singleton < Test::Unit::TestCase

  def test_multiplicity
    element = Needle::Lifecycle::Singleton.new( nil )
    element.succ = Proc.new { Hash.new }
    p1 = element.call( nil, nil )
    p2 = element.call( nil, nil )
    assert_same p1, p2
  end

  def test_extra_args_disallowed
    element = Needle::Lifecycle::Singleton.new( nil )
    assert_raise( ArgumentError ) do
      element.call( 1, 2, 3 )
    end
  end

  def test_reset!
    element = Needle::Lifecycle::Singleton.new( nil )
    element.succ = Proc.new { Hash.new }
    p1 = element.call( nil, nil )
    element.reset!
    p2 = element.call( nil, nil )
    assert_not_same p1, p2
  end

end