gistfile1.rb

require 'test_helper'
require 'mocha'

class StatTest < ActiveSupport::TestCase
  
  test "should belong to user" do
    assert_kind_of User, stats(:one).user
  end

  test "should add error on user when validating with nil user" do
    stat = build_stat(:user => nil)
    stat.valid?
    assert_not_nil stat.errors.on(:user_id)
  end
  
  test "should add error on user when validating with invalid user" do
    stat = build_stat
    User.any_instance.stubs(:valid?).returns(false)
    stat.valid?
    assert_not_nil stat.errors.on(:user)
  end
  
  test "should not add error on aspect when validating with a different aspect" do
    stat_1 = build_stat(:aspect => "test_1")
    stat_1.save!
    stat_2 = build_stat(:aspect => "test_2")
    stat_2.valid?
    assert_nil stat_2.errors.on(:aspect)
  end
  
  test "should add error on aspect when validating with the same aspect" do
    stat_1 = build_stat(:aspect => "test")
    stat_1.save!
    stat_2 = build_stat(:aspect => "test")
    stat_2.valid?
    assert_not_nil stat_2.errors.on(:aspect)
  end

  test "should not add error on aspect when validating an updated stat" do
    stat = build_stat
    stat.save!
    stat.third_field = "test"
    stat.valid?
    assert_nil stat.errors.on(:aspect)
  end
  
  test "should aspect be read only" do
    stat = build_stat(:aspect => "test")
    stat.save!
    stat.update_attribute(:aspect, "changed")
    stat.reload
    assert_equal "test", stat.aspect
  end

  test "should user be read only" do
    stat = build_stat(:user => users(:bob))
    stat.save!
    stat.update_attribute(:user, users(:john))
    stat.reload
    assert_equal users(:bob), stat.user
  end
  
  private
  
  def build_stat(attributes={})
    Stat.new({:user => users(:bob), :aspect => "my aspect"}.
      merge(attributes))
  end
  
end