Class: RSpec::Expectations::NegativeExpectationHandler

Inherits:
ExpectationHandler show all
Defined in:
lib/rspec/expectations/handler.rb

Class Method Summary collapse

Methods inherited from ExpectationHandler

check_message, message_must_be_string

Class Method Details

.handle_matcher(actual, matcher, message = nil, &block) ⇒ Object 



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# File 'lib/rspec/expectations/handler.rb', line 39

def self.handle_matcher(actual, matcher, message=nil, &block)
  check_message(message)
  ::RSpec::Matchers.last_should = :should_not
  ::RSpec::Matchers.last_matcher = matcher
  return ::RSpec::Matchers::BuiltIn::NegativeOperatorMatcher.new(actual) if matcher.nil?

  match = matcher.respond_to?(:does_not_match?) ?
          !matcher.does_not_match?(actual, &block) :
          matcher.matches?(actual, &block)
  return match unless match

  message ||= matcher.respond_to?(:failure_message_for_should_not) ?
              matcher.failure_message_for_should_not :
              matcher.negative_failure_message

  if matcher.respond_to?(:diffable?) && matcher.diffable?
    ::RSpec::Expectations.fail_with message, matcher.expected, matcher.actual
  else
    ::RSpec::Expectations.fail_with message
  end
end