factories.rb

FactoryGirl.define do
  factory :tech_spec_name do
    sequence(:name) { |n| "#{ Faker::Lorem.word } #{ n }"}
  end

  factory :boat do
    name { Faker::Name.first_name }
  end

  factory :tech_spec do
    boat { FactoryGirl.create(:boat) }
    tech_spec_name { FactoryGirl.create(:tech_spec_name) }
    value { Faker::Lorem.word }
  end

  factory :user do
    email { Faker::Internet.email }
    role 'user'
    password 'thisisapassword'
    password_confirmation { |u| u.password }
  end
end

models.rb

class TechSpec < ActiveRecord::Base
  validates :boat_id, presence: true
  validates :tech_spec_name_id, presence: true, uniqueness: { scope: :boat_id }

  # This was belongs_to, changed to test it
  belongs_to :boat
  has_one :tech_spec_name
end
class TechSpecName < ActiveRecord::Base
  validates :name, presence: true, uniqueness: { case_sensitive: false }
end
class Boat < ActiveRecord::Base
  validates :name, presence: true, uniqueness: { case_sensitive: false }

  has_many :tech_spec
end

small_debug.log

DEPRECATION WARNING: You're trying to create an attribute `tech_spec_id'. Writing arbitrary attributes on a model is deprecated. Please just use `attr_writer` etc. (called from block (2 levels) in <top (required)> at /mnt/hgfs/d_wamp_www/austin/austinparker_it/spec/models/tech_spec_spec.rb:7)
DEPRECATION WARNING: You're trying to create an attribute `tech_spec_id'. Writing arbitrary attributes on a model is deprecated. Please just use `attr_writer` etc. (called from block (2 levels) in <top (required)> at /mnt/hgfs/d_wamp_www/austin/austinparker_it/spec/models/tech_spec_spec.rb:7)

--- !ruby/object:TechSpecName
attributes:
  id: 1
  name: WTF
  created_at: 2013-02-15 02:14:33.329072909 Z
  updated_at: 2013-02-15 02:14:33.329072909 Z
  tech_spec_id: 

--- !ruby/object:Boat
attributes:
  id: 1
  name: 36 Fly
  created_at: 2013-02-15 02:14:33.370546501 Z
  updated_at: 2013-02-15 02:14:33.370546501 Z
  tech_spec_id: 

--- !ruby/object:TechSpec
attributes:
  id: 
  boat_id: 1
  tech_spec_name_id: 
  value: officiis
  created_at: 
  updated_at: 

tech_spec_spec.rb

require 'spec_helper'

describe TechSpec do
  it "has a valid factory" do
    tech_spec_name = FactoryGirl.create(:tech_spec_name, name: "WTF")
    boat = FactoryGirl.create(:boat, name: "36 Fly")
    tech_spec = FactoryGirl.build(:tech_spec,
                                   boat: boat,
                                   tech_spec_name: tech_spec_name)

    puts "\n"
    puts tech_spec_name.to_yaml.to_s+"\n"
    puts boat.to_yaml.to_s+"\n"
    puts tech_spec.to_yaml.to_s+"\n"
    # tech_spec.should be_valid
    # tech_spec = FactoryGirl.create(:tech_spec, tech_spec_name: tech_spec_name)
    # tech_spec.should be_valid
  end
end