Module: Spec::Matchers

RSpec ships with a number of useful Expression Matchers. An Expression Matcher is any object that responds to the following methods: matches?(actual) failure_message negative_failure_message #optional description #optional See Spec::Expectations to learn how to use these as Expectation Matchers. See Spec::Mocks to learn how to use them as Mock Argument Constraints. Predicates In addition to those