I've got a validation error...

I'm watching the video :Build a Simple Ruby on Rails Application > Writing Tests > Fixtures.

In the video Jason runs his code with no errors however I get four:

test_a_user_should_enter_a_first_name(UserTest): ActiveRecord::StatementInvalid: SQLite3::SQLException: table users has no column named password: INSERT INTO "users" ("first_name", "last_name", "email", "profile_name", "password", "password_confirmation", "created_at", "updated_at", "id") VALUES ('Test', 'Test', 'test@test.com', 'testtest', 'letmein', 'letmein', '2013-06-23 09:58:50', '2013-06-23 09:58:50', 118750655)

test_a_user_should_enter_a_last_name(UserTest): ActiveRecord::StatementInvalid: SQLite3::SQLException: table users has no column named password: INSERT INTO "users" ("first_name", "last_name", "email", "profile_name", "password", "password_confirmation", "created_at", "updated_at", "id") VALUES ('Test', 'Test', 'test@test.com', 'testtest', 'letmein', 'letmein', '2013-06-23 09:58:50', '2013-06-23 09:58:50', 118750655)

test_a_user_should_enter_a_profile_name(UserTest): ActiveRecord::StatementInvalid: SQLite3::SQLException: table users has no column named password: INSERT INTO "users" ("first_name", "last_name", "email", "profile_name", "password", "password_confirmation", "created_at", "updated_at", "id") VALUES ('Test', 'Test', 'test@test.com', 'testtest', 'letmein', 'letmein', '2013-06-23 09:58:50', '2013-06-23 09:58:50', 118750655)

test_a_user_should_have_a_unique_profile_name(UserTest): ActiveRecord::StatementInvalid: SQLite3::SQLException: table users has no column named password: INSERT INTO "users" ("first_name", "last_name", "email", "profile_name", "password", "password_confirmation", "created_at", "updated_at", "id") VALUES ('Test', 'Test', 'test@test.com', 'testtest', 'letmein', 'letmein', '2013-06-23 09:58:50', '2013-06-23 09:58:50', 118750655)

My user_test.rb contains

require 'test_helper'

class UserTest < ActiveSupport::TestCase
     test "a user should enter a first name" do 
    user = User.new
    assert !user.save
    assert !user.errors[:first_name].empty?
 end

 test "a user should enter a last name" do 
    user = User.new
    assert !user.save
    assert !user.errors[:last_name].empty?
    end

 test "a user should enter a profile name" do 
    user = User.new
    assert !user.save
    assert !user.errors[:profile_name].empty?
 end

 test "a user should have a unique profile name" do 
    user = User.new
    user.profile_name = 'testtest'
    user.email = 'test@test.com'
    user.first_name = 'Test'
    user.last_name = 'Test'
    user.password = 'letmein'
    user.password_confirmation = 'letmein'

    assert !user.save
    assert !user.errors[:profile_name].empty?
 end
end

And my users.yml

freddy:
  first_name: "Test"
  last_name: "Test"
  email: "test@test.com"
  profile_name: "testtest"
  password: "letmein"
  password_confirmation: "letmein"

Why is this happening?