class Shoulda::Matchers::ActiveModel::DisallowValueMatcher

def allowed_types
  ''
end

def failure_message_for_should
  @allow_matcher.failure_message_for_should_not
end

def failure_message_for_should_not
  @allow_matcher.failure_message_for_should
end

def for(attribute)
  @allow_matcher.for(attribute)
  self
end

def initialize(value)
  @allow_matcher = AllowValueMatcher.new(value)
end

def matches?(subject)
  !@allow_matcher.matches?(subject)
end

def strict
  @allow_matcher.strict
  self
end

def with_message(message)
  @allow_matcher.with_message(message)
  self
end