去除rspec should/expect警告

# /spec/spec_helpber.rb
RSpec.configure do |config|
  config.mock_with :rspec do |c|
    c.syntax = [:should, :expect]
  end

  config.expect_with :rspec do |c|
    c.syntax = [:should, :expect]
  end
end

资料

How to remove RSpec old syntax deprecation warnings