Example of Lotus::Router usage. It includes integration and unit tests examples. Clone this gist and then run `bash setup.sh` to run the app: `rackup application.rb`.

application.rb

require 'lotus/router'

Application = Rack::Builder.new do
  router = Lotus::Router.new do
    get '/', to: ->(env) { [200, {}, ['Hello World']] }, as: :root
  end
  run router
end.to_app

Gemfile

source 'https://rubygems.org'

gem 'lotus-router'

group :test do
  gem 'rspec'
  gem 'capybara'
end

home_page_spec.rb

# spec/features/home_page_spec.rb
require 'spec_helper'

feature 'Home page' do
  it 'successfully visits the home page' do
    visit '/'

    expect(page.body).to match('Hello World')
  end
end

Rakefile

require 'rspec/core/rake_task'

RSpec::Core::RakeTask.new(:spec)
task default: :spec

routing_spec.rb

# spec/routing_spec.rb
require 'spec_helper'

describe Application do
  let(:application) { Application }

  it 'recognizes route path' do
    expect(application.path(:root)).to eq('/')
  end
end

setup.sh

#!/bin/bash
mkdir -p spec/features

mv spec_helper.rb    spec
mv routing_spec.rb   spec
mv home_page_spec.rb spec/features

bundle

# This script will self destruct in 3, 2, 1.. poof!
rm -- "$0"

spec_helper.rb

# spec/spec_helper.rb
$:.unshift __dir__ + '/..'
require 'rubygems'
require 'bundler'
Bundler.require(:default, :test)
require 'rspec'
require 'capybara/rspec'
require 'application'

module RSpec
  module FeatureExampleGroup
    def self.included(group)
      group.metadata[:type] = :feature
      Capybara.app = Application
    end
  end
end

RSpec.configure do |c|
  def c.escaped_path(*parts)
    Regexp.compile(parts.join('[\\\/]') + '[\\\/]')
  end

  c.color = true

  c.include RSpec::FeatureExampleGroup, type: :feature, example_group: {
    file_path: c.escaped_path(%w[spec features])
  }

  c.include Capybara::DSL, type: :feature
end