ruby-on-rails - Rails NoMethodError 对 rake 测试

Question

我有以下课程：

class CachedObject < ActiveRecord::Base
  attr_accessible :key, :value
  validates_presence_of :key
  validates_uniqueness_of :key
  serialize :value
end

我正在运行以下单元测试：

class CachedObjectTest < ActiveSupport::TestCase
  setup do
    @cached_object = CachedObject.new
  end

  test "key should set" do
    @cached_object.key = 'test'
    assert @cached_object.save
  end

  test "value should set" do
    offer = new Offer

    @cached_object.value = offer
    assert @cached_object.save
  end
end

我收到此错误：

NoMethodError: undefined method `new' for #<CachedObjectTest:0x007fb1f1c82f08>

这对我来说毫无意义。CachedObject 是 ActiveRecord 的子类，因此它应该定义新方法。我在这里做错了什么？

Answer 1

错误在这里

  test "value should set" do
    offer = new Offer

它应该是

  test "value should set" do
    offer = Offer.new