The Bike Shed
19: The Oncoming Storm (Sam Phippen)
Derek and Sean are joined by Sam Phippen from the RSpec core team to discuss RSpec mocks, testing strategies, and minitest.
- RSpec 3 adds composable matchers
 - Spies were added to RSpec in 2.14
 - Using 
any_instanceto test legacy code - minitest
 - RSpec's 
stub_constmethod. - Don't Stub the System Under Test
 - 
assignsandassert_templateare deprecated in Rails 5 - Sam's RailsConf talk: Understanding Rails Test Types in RSpec
 - Fun & Plausible Solutions
 - Sam on Twitter
 
The Bike Shed