Rpsec与工厂女孩不合作

Question

我有点想把我的头发拔出来。我正在尝试使用rspec和工厂女孩(Ubuntu13.10和Rails 4)进行测试。似乎Rspec没有看到任何工厂女孩的东西。这是我的spec_helper.rb：

    # This file is copied to spec/ when you run 'rails generate rspec:install'
    ENV["RAILS_ENV"] ||= 'test'
     require File.expand_path("../../config/environment", __FILE__)
     require 'factory_girl_rails'
     require 'rspec/rails'
     require 'rspec/autorun'
     require 'capybara/rspec'

     Dir[Rails.root.join("spec/support/**/*.rb")].each { |f| require f }

     ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)

     RSpec.configure do |config|
       config.include FactoryGirl::Syntax::Methods

       config.use_transactional_fixtures = true

       config.infer_base_class_for_anonymous_controllers = false

       config.order = "random"
         config.color_enabled = true

         config.tty = true

         config.formatter = :documentation # :progress, :html, :textmate
     end

factories.rb：

    FactoryGirl.define do
      factory :exercise do
        name 'New Exercise'
        time 3
        reps 7
        weight 12
        weight_unit 'kg'
        factory :aerobic_exercise do
         name 'Jumping Jacks'
          kind 'Cardio/Aerobic'
        end
        factory :bodyweight_exercise do
          name 'Pushups'
          kind 'Bodyweight'
        end
        factory :cardio_exercise do
          name 'Jumping Jacks'
          kind 'Cardio/Aerobic'
        end
        factory :lifting_exercise do
          name 'BB Shoulder Presses'
          kind 'Weight Lifting'
        end
      end
    end

而我失败的规范：

    #require 'test/spec'
    require 'spec_helper'

    describe Exercise do
      describe 'Exercise properly normalizes values' do
        it 'has weight and weight unit if kind is Weight Lifting' do
          let(:exercise) { FactoryGirl.create(:lifting_exercise) }
         exercise.should be_weight
          exercise.time.should be_nil
        end
        it 'has time but not weight etc. if kind is Cardio' do
          let(:exercise) { FactoryGirl.create(:aerobic_exercise) }
          exercise.should be_time
          exercise.reps.should be_nil
        end
      end
    end

当我运行rspec时，会得到以下错误：

         Failure/Error: let(:exercise) { FactoryGirl.create(:lifting_exercise) }
  NoMethodError:
    undefined method `let' for #    <RSpec::Core::ExampleGroup::Nested_1::Nested_1:0x007f2f013b3760>

救命！(请)

Answer 1

let方法不是来自FactoryGirl，而是来自Rspec，问题是let不应该嵌套在it中，而是要在it之外使用。

考虑到您编写它的方式，我认为您应该使用这样的局部变量：

describe Exercise do
  describe 'Exercise properly normalizes values' do
    it 'has weight and weight unit if kind is Weight Lifting' do
      exercise = FactoryGirl.create(:lifting_exercise)
      exercise.should be_weight
      exercise.time.should be_nil
    end
    it 'has time but not weight etc. if kind is Cardio' do
      exercise = FactoryGirl.create(:aerobic_exercise)
      exercise.should be_time
      exercise.reps.should be_nil
    end
  end
end

此外，考虑到您已经在您的FactoryGirl::Syntax::Methods中包含了FactoryGirl，您不需要在FactoryGirl中为所有内容加上前缀，您可以这样称呼它：

exercise = create(:lifting_exercise)

我希望这能帮上忙！

-Chad

Answer 2

你的问题不是RSpec和FactoryGirl在一起玩得不好。

let不是示例的方法组的一部分。注意，let在it块中。这应该能行

#require 'test/spec'
require 'spec_helper'

describe Exercise do

  describe 'Exercise properly normalizes values' do

    context 'with a lifting exercise' do
      let(:exercise) { FactoryGirl.create(:lifting_exercise) }

      it 'has weight and weight unit if kind is Weight Lifting' do
        exercise.should be_weight
        exercise.time.should be_nil
      end

    end

    context 'with an aerobic exercise' do
      let(:exercise) { FactoryGirl.create(:aerobic_exercise) }

      it 'has time but not weight etc. if kind is Cardio' do
        exercise.should be_time
        exercise.reps.should be_nil
      end

    end        

  end

end

注意： context只是describe的别名。