Spec::Expectations::NegativeExpectationHandler

    # File lib/spec/expectations/handler.rb, line 27
27:       def self.handle_matcher(actual, matcher, message=nil, &block)
28:         ::Spec::Matchers.last_should = :should_not
29:         ::Spec::Matchers.last_matcher = matcher
30:         return ::Spec::Matchers::NegativeOperatorMatcher.new(actual) if matcher.nil?
31:         
32:         match = matcher.respond_to?(:does_not_match?) ?
33:                 !matcher.does_not_match?(actual, &block) :
34:                 matcher.matches?(actual, &block)
35:         return match unless match
36:         
37:         message ||= matcher.respond_to?(:failure_message_for_should_not) ?
38:                     matcher.failure_message_for_should_not :
39:                     matcher.negative_failure_message
40: 
41:         if matcher.respond_to?(:diffable?) && matcher.diffable?
42:           ::Spec::Expectations.fail_with message, matcher.expected.first, matcher.actual
43:         else
44:           ::Spec::Expectations.fail_with message
45:         end
46:       end