stevo

Ruby (on Rails) backend developer

🚧 This document is being continuously fine-tuned, and thus may change upon consecutive verifications 🚧

Each verification is performed with Tech Lead unless instructed otherwise. Curated list of basic learning resources can be found here

Requirements

Independent developer

stevo

Be prepared to show following GIT CLI skills in action. All skills are required to get :

Working with GIT using CLI 🔹

• can checkout new branch
• can switch between branches
• can display and understand git log
• can add changes (interactive mode, all at once, selected files)
  • can split changesets when adding changes progressively
• can edit changesets when adding changes progressively

stevo

Be prepared to explain and effectively use following language and ActiveSupport features

Max score: 152

Minimum requirements:

• Independent: 100 (+ all blue diamonds)
• Mid: 120 (+ all orange diamonds)
• Senior: 135 (+ all red triangles)

You will not get a pass if you check more than 5 items that you will not be able to prove being knowledgeable about during verification, so check items only if you are sure about them. Be advised, that questions will be rather general ("what does that return?", "what does it do?", "how does that differ from x?").

stevo

Provide the list or PR or other contributions that proves understanding of each subject group or ask for tech interview (more time effective), where we will go step by step throught the following list.

Max score: 331

Minimum requirements:

• Independent: 240 (+ all blue diamonds)
• Mid: 280 (+ all orange diamonds)
• Senior: 300 (+ all red triangles)

You will not get a pass if you check more than 5 items that you will not be able to prove being knowledgeable about during verification, so check items only if you are sure about them. Be advised, that questions will be rather general ("what does that return?", "what is it all about?", "what does that mean?", "how does that differ from x?").

stevo

Terminology / Principles

Be prepared to explaing following terms/rules/principles etc.

• MVC 🔹
• Idempotency 🔹 🐩
• REST 🔹
• Single responsibility principle 🔸 🔖
  • https://thoughtbot.com/upcase/videos/single-responsibility-principle
• Open/Closed principle 🔺 🔖

stevo

# To make it easier to find descriptions and add exceptions
AllCops:
  DisplayCopNames: true
  Exclude:
    - 'bin/**/*'
    - 'vendor/**/*'
    - 'db/schema.rb'
    - 'tmp/**/*'
    - 'node_modules/**/*'

stevo

class BookingsController < ApplicationController
  def index
    # `order` was added prematurely and in the result may remain untested
    bookings = Booking.order(customer_name: :asc)

    render :index, locals: { bookings: bookings }
  end
end

stevo

FAQ

Najpierw się pływa, później jedzie na rowerze, a na końcu biegnie.

Dystans Ironman to 3600m pływania, 180km jazdy na rowerze, oraz 42.2km biegu (maraton).

Ważne

Poniższe zestawienie zebrane zostało z moich osobistych doświadczeń i nie aspiruje w żadnym wypadku do rangi jakiegoś super-hiper poradnika pro-triathlonisty :)

stevo

# spec/events/locks/code_generate_event_spec.rb
module Locks
 RSpec.describe CodeGeneratedEvent do
   it 'validates presence of code, reservation id and room id' do
     expect(CodeGeneratedEvent.new(code: nil, reservation_id: 1, room_id: 1)).not_to be_valid
     expect(CodeGeneratedEvent.new(code: '123', reservation_id: nil, room_id: 1)).not_to be_valid
     expect(CodeGeneratedEvent.new(code: '123', reservation_id: 1, room_id: nil)).not_to be_valid
     expect(CodeGeneratedEvent.new(code: '123', reservation_id: 1, room_id: 1)).to be_valid
   end
 end

stevo

def with_enumerated(subject, method_name)
  begin
    subject.define_singleton_method("#{method_name}_with_enum") do |*args, &block|
      return enum_for(method_name, *args) unless block.present?
      public_send("#{method_name}_without_enum",*args, &block)
    end
    subject.singleton_class.alias_method "#{method_name}_without_enum", method_name
    subject.singleton_class.alias_method method_name, "#{method_name}_with_enum"
    yield
  ensure