我正在处理 Michael Hartl's Rails tutorial并且在使用匹配器重构时无法通过 Rspec 测试。
终端输出
Failures:
1) Authentication login with invalid information
Failure/Error: it { should have_error_message('Invalid') }
NoMethodError:
undefined method `has_error_message?' for #<Capybara::Session>
# ./spec/requests/authentication_pages_spec.rb:21:in `block (4 levels) in <top (required)>'
spec/support/utilities.rb
RSpec::Matchers.define :have_error_message do |m|
match do |page|
page.should have_selector('div.alert.alert-error', text: m)
end
end
spec/requests/authentication_pages_spec.rb
require 'spec_helper'
describe "Authentication" do
subject { page }
describe "login page" do
before { visit login_path }
it { should have_selector('h1', text: 'Login') }
it { should have_selector('title', text: 'Login') }
end
describe "login" do
before { visit login_path }
describe "with invalid information" do
before { click_button "Login" }
it { should have_selector('title', text: 'Login') }
it { should have_error_message('Invalid') }
end
describe "after visiting after page" do
before { click_link "Home" }
it { should_not have_selector('div.alert.alert-error') }
end
describe "with valid information" do
let(:user) { FactoryGirl.create(:user) }
before { valid_login(user) }
it { should have_selector('title', text: user.name) }
it { should have_link('Profile', href: user_path(user)) }
it { should have_link('Logout', href: logout_path) }
it { should_not have_link('Login', href: login_path) }
describe "followed by logout" do
before { click_link "Logout" }
it { should have_link('Login') }
end
end
end
end
为什么它会提示未在任何地方定义的 has_error_message?
方法?
编辑/添加:
spec/spec_helper.rb
require 'rubygems'
require 'spork'
#uncomment the following line to use spork with the debugger
#require 'spork/ext/ruby-debug'
Spork.prefork do
# Loading more in this block will cause your tests to run faster. However,
# if you change any configuration or code from libraries loaded here, you'll
# need to restart spork for it take effect.
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
config.mock_with :rspec
# 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
end
end
Spork.each_run do
# This code will be run each time you run your specs.
end
最佳答案
您是否需要
您的spec/support/utilities.rb
文件?您可能需要在 spec/spec_helper.rb
文件中使用类似这样的内容来实际加载您定义自定义匹配器的文件:
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}
更新:如果您使用的是 Spork,您的 utilities.rb
文件可能会被 Spork 服务器缓存,这意味着您需要重新启动您的 Spork 主进程在新匹配器可以被 RSpec 使用之前(Spork wiki 上的 see details)。
Some people使用这个技巧来强制 Spork 总是重新加载支持文件:
Spork.each_run do
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}
end
关于ruby-on-rails - Ruby on Rails 教程 : RSpec test failing when refactoring with matcher,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15857361/