ruby-on-rails - 为什么我的 ruby 测试找不到访问？

Question

我正在使用 minitest、rails 和 capybara，下面的测试给了我这个错误...

    undefined method `visit' for #<Page:0x007f8bf3697630>
    STDERR:
    Exception `NoMethodError' at /Users/trace/.rvm/gems/ruby-1.9.3-p194@application.1/gems/activemodel-3.1.8/lib/active_model/attribute_methods.rb:385:in `method_missing'
    /Users/trace/.rvm/gems/ruby-1.9.3-p194@application.1/gems/activerecord-3.1.8/lib/active_record/attribute_methods.rb:60:in `method_missing'
    /Users/trace/.rvm/gems/ruby-1.9.3-p194@application.1/gems/capybara-2.0.1/lib/capybara/dsl.rb:51:in `block (2 levels) in <module:DSL>'
    test/support/utilities.rb:2:in `sign_in_user'
    test/integration/pages_intergration_test.rb:12:in `block (4 levels) in <top (required)>'
    /Users/trace/.rvm/gems/ruby-1.9.3-p194@application.1/gems/mocha-0.9.12/lib/mocha/integration/mini_test/version_201_to_202.rb:27:in `run'

这是我的文件 test/integration/pages_intergration_test.rb

require "minitest_helper"

describe "Pages integration" do
  let(:page) { FactoryGirl.create(:page }

  describe "Page Management tool" do

    describe "Visiting a page" do
      let(:user) { FactoryGirl.create(:user)}
      it "Should see the welcome message" do
        sign_in_user(admin_user)
        should have_content("Welcome")
      end
    end
  end
end

和我的文件test/support/utilities.rb

def sign_in_user(user)
  visit root_path
  fill_in "EMAIL ADDRESS",    with: user.email
  fill_in "PASSWORD",         with: user.password
  click_button "SIGN IN"
end

这是我的 minitest.rb ...以防万一我在这里做错了什么

ENV["RAILS_ENV"] = "test"
require File.expand_path('../../config/environment', __FILE__)

require "minitest/autorun"
require "minitest/rails"
require "minitest/rails/capybara"
require "active_support/testing/setup_and_teardown"
require 'turn'

require 'factory_girl'

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

Dir.glob(File.dirname(__FILE__) + "/factories/*").each do |factory|
  require factory
end

require 'database_cleaner'
DatabaseCleaner.strategy = :truncation

class MiniTest::Rails::ActiveSupport::TestCase
  before :each do
    DatabaseCleaner.start
  end

  after :each do
    DatabaseCleaner.clean
  end
end

class IntegrationTest < MiniTest::Spec
  include Rails.application.routes.url_helpers
  include Capybara::DSL

  register_spec_type(/integration$/, self)

  before :each do
    DatabaseCleaner.start
  end

  after :each do
    DatabaseCleaner.clean
    Capybara.reset_sessions!
    Capybara.use_default_driver
  end
end

class HelperTest < MiniTest::Spec
  include ActiveSupport::Testing::SetupAndTeardown
  include ActionView::TestCase::Behavior
  register_spec_type(/Helper$/, self)

  before :each do
    DatabaseCleaner.start
  end

  after :each do
    DatabaseCleaner.clean
  end
end

关于问题是什么的任何想法......

Answer 1

最新版本的 Capybara(2.0 分支)有需要考虑的更改。这是来自 changelog 的相关部分(相关段落加粗):

Notably, we changed the :type that Capybara assumes your specs run under in RSpec to :feature (previously it was :request). The latest release of spec/features. Alternatively you can use the Capybara Feature DSL (feature instead of describe), which should work without any additional tweaking. If you see errors like undefined method visit, then you're probably encountering this issue. If you're including modules into :request specs, you will probably need to change that to :feature.

因此，将 describe 更改为 feature 可能会解决问题。