New in RSpec 3: Composable MatchersMyron MarstonJan 14, 2014One of RSpec 3’s big new features is shipping 3.0.0.beta2: composable matchers. This feature supports more powerful, less brittle expectations, and opens up new possibilities. An Example In RSpec 2.x, I’ve written code like this on many occassions: # background_worker.rb class BackgroundWorker attr_reader :queue def initialize @queue = [] end def enqueue(job_data) queue <<
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