Class: Linkage::Configuration::DSL::ExpectationWrapper

Inherits:
Object
  • Object
show all
Defined in:
lib/linkage/configuration.rb

Constant Summary collapse

VALID_OPERATORS = 
[:==, :>, :<, :>=, :<=]
OPERATOR_OPPOSITES = 
{
  :==   => :'!=',
  :>    => :<=,
  :<=   => :>,
  :<    => :>=,
  :>=   => :<
}

Instance Method Summary collapse

Constructor Details

#initialize(dsl, type, lhs, *args) ⇒ ExpectationWrapper

Returns a new instance of ExpectationWrapper.



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# File 'lib/linkage/configuration.rb', line 35

def initialize(dsl, type, lhs, *args)
  @dsl = dsl
  @type = type
  @lhs = lhs
end

Instance Method Details

#compare_with(operator, rhs) ⇒ Object 



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# File 'lib/linkage/configuration.rb', line 41

def compare_with(operator, rhs)
  # NOTE: lhs is always a DataWrapper

  if !rhs.is_a?(DataWrapper) || @lhs.static? || rhs.static? || @lhs.side == rhs.side
    @side = !@lhs.static? ? @lhs.side : rhs.side

    # If one of the objects in this comparison is a static function, we need to set the side
    # and the dataset based on the other object
    if rhs.is_a?(DataWrapper) && !rhs.static? && @lhs.is_a?(FunctionWrapper) && @lhs.static?
      @lhs.dataset = rhs.dataset
      @lhs.side = @side
    elsif @lhs.is_a?(DataWrapper) && !@lhs.static? && rhs.is_a?(FunctionWrapper) && rhs.static?
      rhs.dataset = @lhs.dataset
      rhs.side = @side
    end
  elsif rhs.is_a?(DataWrapper) && operator != :==
    # create an exhaustive expectation with the Compare comparator instead
    comparator = Comparators::Compare.new(@lhs.meta_object,
      MetaObject.new(operator.to_s), rhs.meta_object)

    score_range = Comparators::Compare.score_range
    threshold = @type == :must ? score_range.last : score_range.first

    expectation = Expectations::Exhaustive.new(comparator, threshold, :equal)
    @dsl.add_exhaustive_expectation(expectation)
    return self
  end

  exp_operator = @type == :must_not ? OPERATOR_OPPOSITES[operator] : operator

  rhs_meta_object = rhs.is_a?(DataWrapper) ? rhs.meta_object : MetaObject.new(rhs)
  @expectation = Expectations::Simple.create(@lhs.meta_object,
    rhs_meta_object, exp_operator)
  @dsl.add_simple_expectation(@expectation)
  self
end

#exactly ⇒ Object 



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# File 'lib/linkage/configuration.rb', line 84

def exactly
  if !@exact_match
    @expectation.exactly!
  end
end