console.log

Topic
  is valid if all parameters match (FAILED - 1)

Failures:

  1) Topic is valid if all parameters match
     Failure/Error: build(:topic).should be_valid
     ActiveRecord::RecordInvalid:
       Validation failed: Username has already been taken
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     # ./spec/models/topic_spec.rb:5:in `block (2 levels) in <top (required)>'

Finished in 2.31 seconds
1 example, 1 failure

Failed examples:

rspec ./spec/models/topic_spec.rb:4 # Topic is valid if all parameters match

Randomized with seed 59985

schema.rb

# encoding: UTF-8
# This file is auto-generated from the current state of the database. Instead
# of editing this file, please use the migrations feature of Active Record to
# incrementally modify your database, and then regenerate this schema definition.
#
# Note that this schema.rb definition is the authoritative source for your
# database schema. If you need to create the application database on another
# system, you should be using db:schema:load, not running all the migrations
# from scratch. The latter is a flawed and unsustainable approach (the more migrations
# you'll amass, the slower it'll run and the greater likelihood for issues).
#
# It's strongly recommended that you check this file into your version control system.

ActiveRecord::Schema.define(version: 20140425084406) do

  # These are extensions that must be enabled in order to support this database
  enable_extension "plpgsql"

  create_table "categories", force: true do |t|
    t.string   "name"
    t.integer  "order",      default: 0
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  create_table "forums", force: true do |t|
    t.integer  "category_id"
    t.string   "name"
    t.text     "description"
    t.integer  "order",       default: 0
    t.datetime "created_at"
    t.datetime "updated_at"
    t.string   "slug"
  end

  add_index "forums", ["slug"], name: "index_forums_on_slug", using: :btree

  create_table "posts", force: true do |t|
    t.integer  "topic_id"
    t.text     "bodytext"
    t.boolean  "is_censored", default: false
    t.datetime "created_at"
    t.datetime "updated_at"
    t.integer  "user_id"
  end

  create_table "topics", force: true do |t|
    t.integer  "forum_id"
    t.string   "name"
    t.boolean  "is_sticky",    default: false
    t.boolean  "is_locked",    default: false
    t.integer  "views",        default: 0
    t.datetime "created_at"
    t.datetime "updated_at"
    t.string   "slug"
    t.integer  "user_id"
    t.integer  "last_post_id"
  end

  add_index "topics", ["slug"], name: "index_topics_on_slug", using: :btree

  create_table "users", force: true do |t|
    t.string   "username"
    t.string   "first_name"
    t.string   "last_name"
    t.string   "email"
    t.string   "password_digest"
    t.boolean  "is_staff",        default: false
    t.datetime "created_at"
    t.datetime "updated_at"
  end

end

topic_spec.rb

require 'spec_helper'

describe Topic do
  it "is valid if all parameters match" do
    build(:topic).should be_valid
  end

  it { should have_many(:posts).dependent(:destroy) }

  it { should belong_to(:forum) }
  it { should belong_to(:user) }

  it { should ensure_length_of(:name).is_at_least(6) }

  it { should accept_nested_attributes_for(:posts) }

end

topics.rb

require 'faker'

FactoryGirl.define do
  factory :topic do
    association :forum
    name {Faker::Name.title}
    association :user
    association :post
  end
end

users.rb

require 'faker'

FactoryGirl.define do
  factory :user do 
    email {Faker::Internet.email}
    username {Faker::Internet.user_name}
    first_name {Faker::Name.first_name}
    last_name {Faker::Name.last_name}
    password 'test123'
    password_confirmation 'test123'
  end
end