RoR教程 Michael Hartl 5.27

Question

我正在跟随Michael Hartl的Ruby on Rails教程学习，关于第五章第三个练习（链接），我遇到了一些问题。我已经创建了application_helper_spec.rb文件，并使用书中完全相同的代码编写了utilities.rb文件，只包含清单5.38中指定的行，但是当我运行测试套件时，出现以下错误：

C:.../sample_app/spec/helpers/appliaction_helper_spec.rb:1: syntax error, unexpected tIDENTIFIER, expecting $end (SyntaxError)
desc...ApplicationHelper do

文件的第一行是：require 'spec_helper'，当我删除这行时，就不会出现这个错误，但我真的不认为这是正确的解决方案。

以下是文件中的代码（与书上相同）。

require 'spec_helper'

  describe ApplicationHelper do

    describe "full_title" do
      it "should include the page title" do
        full_title("foo").should =~ /foo/
      end

      it "should include the base title" do
        full_title("foo").should =~ /^Ruby on Rails Tutorial Sample App/
      end

      it "should not include a bar for the home page" do
        full_title("").should_not =~ /\|/
      end
    end
  end

[编辑] spec_helper：

# 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

[编辑] application_helper.rb

module ApplicationHelper

  #Returns the full title on a per-page basis.
  def full_title(page_title)
    base_title = "Ruby on Rails Tutorial Sample App"
    if page_title.empty?
      base_title
    else
      "#{base_title} | #{page_title}"
    end
  end
end

- Eduardo Augusto

---

你的spec_helper是什么样子？ - MrDanA

尝试取消缩进 describe Application do ... end 块。 - Thanh

请展示你的application_helper.rb文件。 - Thanh

你在utilities.rb文件中是否已经使用了include ApplicationHelper？ - Thanh

你发布的文件第一行没有语法错误，所以要么你在复制错误信息时出错了（你承认这是真的），要么你在复制application_helper_spec.rb时出错了。你应该仔细编辑你的帖子，并使用操作系统的复制和粘贴功能，确保我们可以看到错误信息和文件上准确的内容。 - David Grayson

Answer 1

文件名有拼写错误：

appliaction_helper_spec.rb => application_helper_spec.rb

- Thanh

---

实际上，当我输入错误信息时犯了一个错误，文件名是正确的。 - Eduardo Augusto

哦，那你应该再检查一下代码，可能你漏掉了什么。 - Thanh