require_relative "../helper"

class TestSpace < MiniTest::Test

  def setup
    @machine = Risc.machine.boot
    @space = Parfait.object_space
  end

  def classes
    [:Word,:List,:Message,:NamedList,:Type,:Object,:Class,:Dictionary,:TypedMethod , :Integer]
  end

  def test_booted
    assert_equal true , @machine.booted
  end
  def test_space_length
    assert_equal 8 , @space.get_type.instance_length , @space.get_type.inspect
  end
  def test_singletons
    assert @space.true_object , "No truth"
    assert @space.false_object , "No lies"
    assert @space.nil_object , "No nothing"
  end
  def test_methods_booted
    word = @space.get_class_by_name(:Word).instance_type
    assert_equal 3 , word.method_names.get_length
    assert word.get_method(:putstring) , "no putstring"
  end

  def test_global_space
    assert_equal Parfait::Space , Parfait.object_space.class
  end

  def test_integer
    int = Parfait.object_space.get_class_by_name :Integer
    assert_equal 10, int.instance_type.method_names.get_length
  end

  def test_classes_class
    classes.each do |name|
      assert_equal :Class , @space.classes[name].get_class.name
      assert_equal Parfait::Class , @space.classes[name].class
    end
  end

  def test_types
    assert  @space.instance_variable_ged("@types").is_a? Parfait::Dictionary
  end

  def test_types_each
    @space.each_type do |type|
      assert type.is_a?(Parfait::Type)
    end
  end

  def test_types_hashes
    types = @space.instance_variable_ged("@types")
    types.each do |has , type|
      assert has.is_a?(Fixnum) , has.inspect
    end
  end

  def test_classes_types_in_space_types
    @space.classes do |name , clazz|
      assert_equal clazz.instance_type , @space.get_type_for(clazz.instance_type.hash) , clazz.name
    end
  end

  def test_word_class
    word = @space.classes[:Word]
    assert word.instance_type
    t_word = @space.get_type_for(word.instance_type.hash)
    assert_equal word.instance_type.hash , t_word.hash
    assert_equal word.instance_type.object_id , t_word.object_id
  end

  def test_classes_type
    classes.each do |name|
      assert_equal Parfait::Type , @space.classes[name].get_type.class
    end
  end

  def test_classes_name
    classes.each do |name|
      assert_equal name , @space.classes[name].name
    end
  end

  def test_method_name
    classes.each do |name|
      cl = @space.classes[name]
      cl.method_names.each do |mname|
        method = cl.get_instance_method(mname)
        assert_equal mname , method.name
        assert_equal name , method.for_class.name
      end
    end
  end
  def test_messages
    mess = @space.first_message
    all = []
    while mess
      all << mess
      assert mess.frame
      mess = mess.next_message
    end
    assert_equal all.length , all.uniq.length
    # there is a 5.times in space, but one Message gets created before
    assert_equal  50 + 1 , all.length
  end
  def test_message_vars
    mess = @space.first_message
    all = mess.get_instance_variables
    assert all
    assert all.include?(:next_message)
  end

  def test_create_class
    assert @space.create_class( :NewClass )
  end

  def test_created_class_is_stored
    @space.create_class( :NewerClass )
    assert @space.get_class_by_name(:NewerClass)
  end

  def test_class_types_are_stored
    @space.classes.each do |name,clazz|
      assert @space.get_type_for(clazz.instance_type.hash)
    end
  end

  def test_class_types_are_identical
    @space.classes.each do |name , clazz|
      cl_type = @space.get_type_for(clazz.instance_type.hash)
      assert_equal cl_type.object_id , clazz.instance_type.object_id
    end
  end

  def test_remove_methods
    @space.each_type do | type |
      type.method_names.each do |method|
        type.remove_method(method)
      end
    end
    assert_equal 0 , @space.collect_methods.length
  end
  def test_no_methods_in_types
    test_remove_methods
    @space.each_type do |type|
      assert_equal 0 , type.methods_length , "name #{type.name}"
    end
  end
  def test_no_methods_in_classes
    test_remove_methods
    @space.classes.each do |name , cl|
      assert_equal 0 , cl.instance_type.methods_length , "name #{cl.name}"
    end
  end

end