Include example of class based pinglish

[technicalpickles]

I was building a pinglish check, and wanted to include more application logic, but was worried about including it in config/application.rb. I figured out a way to include this in app/middleware as it's own class, as well as a way to test it.

Here's the example:

# app/middleware/fancy_pinglish.rb
class FancyPinglish < Pinglish

  def initialize(app, options = nil, &block)
    super

    check :fancy do
      # logic here
    end

    check :exquisite do
      # logic here
    end

    check :epic do
      # logic
    end
  end

end

# config/application.rb
config.middleware.use "FancyPinglish", max: 15, path: '/_ping/fancy'

# spec/middleware/fancy_pinglish_spec.rb
describe FancyPinglish, type: :request do

  context "when all is clear" do
    before do
      # stub logic
    end

    it "returns 200" do
      get "/_ping/fancy"

      expect(response.status).to eq(200)
    end
  end

  context "when pagerduty is failing" do
    before do
      # stub logic
    end

    it "returns 503" do
      get "/_ping/fancy"

      expect(response.status).to eq(503)
    end
  end
  # other variations here
end

[jbarnette]

Oh cool, that's a nice technique. I like your old Rails example issue too. I'll leave these open for now + eventually roll them into a doc release.