Rebuild Rails Part 2

Before we continue with out rebuilding series, we should write some tests first :)

# spec/spec_helper.rb
ENV["RAILS_ENV"] ||= "test"

require "rack/test"
require "minitest/autorun"

require File.expand_path("../../config/application", __FILE__)


# spec/application_spec.rb
require_relative "spec_helper"

describe CrazyApp::Application do
  include Rack::Test::Methods

  def app
    CrazyApp::Application
  end

  it "should respond with /" do
    get "/"
    last_response.ok?.must_equal true
    last_response.body.strip.must_equal "hello from index.html"
  end

  it "should respond with different path" do
    get "/posts"
    last_response.ok?.must_equal true
    last_response.body.strip.must_equal "hello from tracks /posts"
  end

end

Just like your typical Rails test setup, we have a common spec_helper file. We use minitest/autorun which gives us rspec-style DSL out of the box. For our test, we need Rack::Test::Methods to use get and other http methods. We also need an app method that returns our Rack application to make the tests work.

$ ruby spec/application_spec.rb
Run options: --seed 57256

# Running:
..

Finished in 0.015864s, 126.0716 runs/s, 252.1432 assertions/s.

2 runs, 4 assertions, 0 failures, 0 errors, 0 skips

We’re all good. Awesome!