我正在使用此解决方案来避免在 javascript 测试期间出现数据库问题。
第一次运行套件，测试运行良好，全部通过。
如果我再次运行整个套件，它们仍然会通过。
但是，如果我运行一个单独的规范文件，然后尝试运行该套件（或其他单独的测试），我会收到此错误：
An error occurred in an after hook
ActiveRecord::StatementInvalid: ArgumentError: prepare called on a closed database: rollback transaction
occurred at /home/steveq/.rvm/gems/ruby-1.9.3-p194@rails32/gems/sqlite3-1.3.7/lib/sqlite3/database.rb:91:in `initialize'
1) Signing up with valid information
Failure/Error: visit "/sign_up"
ActiveRecord::StatementInvalid:
ArgumentError: prepare called on a closed database: PRAGMA table_info("users")
# ./app/controllers/registrations_controller.rb:3:in `new'
# ./app/controllers/registrations_controller.rb:3:in `new'
# ./spec/features/sign_up_feature_spec.rb:5:in `block (2 levels) in <top (required)>'
如果我重新加载警卫，测试将再次通过。
有没有人对这里发生的事情或任何可能的解决方案有任何见解？我已经尝试了所有我能想到的变体，这是我的 spec_helper 文件来显示我尝试过的东西（变体被注释掉，当前代码 - 水豚页面上的建议 - 是我现在正在使用的） .
require 'rubygems'
require 'spork'
#uncomment the following line to use spork with the debugger
#require 'spork/ext/ruby-debug'
Spork.prefork do
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|
#Make it so Selenium (out of thread) tests can work with transactional fixtures
#REF http://opinionated-programmer.com/2011/02/capybara-and-selenium-with-rspec-and-rails-3/#comment-220
# ActiveRecord::ConnectionAdapters::ConnectionPool.class_eval do
# def current_connection_id
# # Thread.current.object_id
# Thread.main.object_id
# end
# end
# FactoryGirl short syntax
config.include FactoryGirl::Syntax::Methods
config.use_transactional_fixtures = true
# set up for use with :js => true.
# See http://stackoverflow.com/questions/8178120/capybara-with-js-true-causes-test-to-fail for more info
# config.before :suite do
# if Capybara.current_driver == :rack_test
# DatabaseCleaner.strategy = :transaction
# else
# DatabaseCleaner.strategy = :truncation
# end
# DatabaseCleaner.start
# end
# config.after do
# DatabaseCleaner.clean
# end
# standard RSPEC config
# config.before(:suite) :truncation
# else
# :transaction
# end do
# DatabaseCleaner.strategy = if example.metadata[:js]
# :truncation
# else
# :transaction
# end
# DatabaseCleaner.clean_with(:truncation)
# end
# config.before(:each) do
# DatabaseCleaner.start
# end
# config.after(:each) do
# DatabaseCleaner.clean
# end
# config.before(:each) do
# DatabaseCleaner.strategy = if example.metadata[:js]
# :truncation
# else
# :transaction
# end
# DatabaseCleaner.start
# end
# config.after(:each) do
# DatabaseCleaner.clean
# end
# 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"
config.treat_symbols_as_metadata_keys_with_true_values = true
config.filter_run :focus => true
config.run_all_when_everything_filtered = true
config.include MailerMacros
config.include LoginMacros
config.before(:each) { reset_email }
config.include Devise::TestHelpers, :type => :controller
config.extend LoginMacros, :type => :controller
end
end
Spork.each_run do
# allows capybara JS tests to run in separate thread
class ActiveRecord::Base
mattr_accessor :shared_connection
@@shared_connection = nil
def self.connection
@@shared_connection || retrieve_connection
end
end
# Forces all threads to share the same connection. This works on
# Capybara because it starts the web server in a thread.
ActiveRecord::Base.shared_connection = ActiveRecord::Base.connection
# This code will be run each time you run your specs.
load "#{Rails.root}/config/routes.rb"
FactoryGirl.reload
# reload all the models
Dir["#{Rails.root}/app/models/**/*.rb"].each do |model|
load model
end
end