Model Conventions

README

This conventions are the ones I use when developing models.

Basically all the rspec generated file is separated in sections depending on the things the model does, validates and sets.

Validations
Relations
instance methods
scopes

All of those tested separately.

person.rb

class Person < ActiveRecord::Base
  ALLOWED_ROLES = %w(
    role_1
    role_2
  )

  belongs_to :project

  validates :role, presence: true, inclusion: {in: ALLOWED_ROLES}
  validates :name, presence: true

  def human_role
    self.role.humanize
  end
end

person_spec.rb

require 'spec_helper'

describe Person, "Relations" do
  it { should belong_to(:project) }
end


describe Person, "Validations" do
  subject { FactoryGirl.create(:checkin) }
  it { should validate_presence_of(:role) }
  it { should validate_presence_of(:name) }

  it "should allow valid values for ##role##" do
    Checkin::ALLOWED_ROLES.each do |role|
      should allow_value(role).for(:role)
    end
  end
  it { should_not allow_value("other").for(:role) }
end

describe Person, "instance methods" do
  describe "human role" do
    it "should return the humanized string..." do
      ...
    end
  end
end