1

我正在运行我的 rspec 测试，它输出以下内容：

Failure/Error: expect {
 NoMethodError:
   undefined method `[]' for nil:NilClass
 # ./spec/controllers/users_controller_spec.rb:44:in `block (4 levels) in <top (required)>'

错误引用的行是它显示“expect {”的行。我不太确定这里到底出了什么问题。

这是完整的规格：

require 'spec_helper'

describe UsersController do

  def valid_attributes
      {
      :username => "tester",
      :email => "tester@holler.com",
      :password => "testingpass"
      }
  end

  def valid_session
    {}
  end

  describe "POST create" do
    describe "with valid params" do
      it "creates a new User" do
        expect {
          post :create, {:user => valid_attributes , :format => :json}, valid_session
        }.to change(User, :count).by(1)
      end
    end
  end
end

关于这里出了什么问题的任何想法？

更新

一位评论者要求提供 spec_helper.rb 文件。我把它贴在下面……它是 rspec 生成的默认值。

# 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 'rspec/rails'
require 'rspec/autorun'

# Requires supporting ruby files with custom matchers and macros, etc,
# in spec/support/ and its subdirectories.
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}

RSpec.configure do |config|
  # ## Mock Framework
  #
  # If you prefer to use mocha, flexmock or RR, uncomment the appropriate line:
  #
  # config.mock_with :mocha
  # config.mock_with :flexmock
  # config.mock_with :rr

  # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
  config.fixture_path = "#{::Rails.root}/spec/fixtures"

  # If you're not using ActiveRecord, or you'd prefer not to run each of your
  # examples within a transaction, remove the following line or assign false
  # instead of true.
  config.use_transactional_fixtures = true

  # If true, the base class of anonymous controllers will be inferred
  # automatically. This will be the default behavior in future versions of
  # rspec-rails.
  config.infer_base_class_for_anonymous_controllers = false

  # Run specs in random order to surface order dependencies. If you find an
  # order dependency and want to debug it, you can fix the order by providing
  # the seed, which is printed after each run.
  #     --seed 1234
  config.order = "random"
end
4

1 回答 1

0

它没有丢失该expect方法 - 失败消息说它[]在nil. 默认情况下，RSpec 仅向您显示规范中导致问题的行，但有时问题更深层次。

--backtrace在命令行上运行带有标志的规范以查看完整的回溯并查明真正的来源。

HTH，大卫

于 2012-10-09T13:13:54.503 回答