Question

我一直试图找到这个问题的答案，但阅读类似的SO帖子还没有解决我的问题。我有一个使用rspec和spork的rails应用程序。如果我只是运行没有spork的rspec，我的测试运行得很好，但它们非常慢。但是，当我使用spork时，我收到以下错误：

ActiveRecord::StatementInvalid:
   PG::ConnectionBad: connection is closed:               SELECT a.attname, format_type(a.atttypid, a.atttypmod),
                        pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod
                   FROM pg_attribute a LEFT JOIN pg_attrdef d
                     ON a.attrelid = d.adrelid AND a.attnum = d.adnum
                  WHERE a.attrelid = '"orders"'::regclass
                    AND a.attnum > 0 AND NOT a.attisdropped
                  ORDER BY a.attnum

这是（大多数）我的gemfile：

gem 'rails', '4.1.5'
gem 'bootstrap-sass', '2.3.2.0'
gem 'sprockets'
gem 'minitest'
gem 'bcrypt-ruby'
gem 'faker', '1.1.2'
gem 'will_paginate', '3.0.4'
gem 'bootstrap-will_paginate', '0.0.9'
gem 'pg'
gem 'cocoon'

group :development, :test do
  gem 'rspec-rails'
  gem 'guard-rspec'
  gem 'spork-rails'
  gem 'guard-spork'
  gem 'childprocess'
  gem 'database_cleaner'
end

group :test do
  gem 'selenium-webdriver'
  gem 'capybara'
  gem 'factory_girl_rails'
end

...和我的database.yml（开发和测试）：

development:
  adapter: postgresql
  host: localhost
  username: user
  password: 'password'
  database: test_app_development

test:
  adapter: postgresql
  host: localhost
  username: user
  password: 'password'
  database: test_app_test

注意：在许多其他类似的帖子中，人们在第二次和随后的运行测试时只得到类似的错误，但在我的情况下，错误出现在第一次运行和所有其他错误。使用rails s在开发模式下连接到PG没问题。

编辑我尝试升级我的软件包以解决问题（想想可能是后来的版本的rspec，警卫或spork解决了这个问题，但无济于事。但是，我确实做了对https://github.com/guard/guard/wiki/Upgrading-to-Guard-2.0#changes-in-guardguard中列出的spork.rb进行了必要的更改，我还按照此处的建议更新了rspec.rb：https://github.com/manafire/spork/commit/38c79dcedb246daacbadb9f18d09f50cc837de51#diff-937afaa19ccfee172d722a05112a7c6fL6，它解决了与更新宝石有关的问题，但没有解决我原来的问题。 / p>

编辑包含SPEC_HELPER 这是我的spec_helper.rb文件：

require 'rubygems'
require 'spork'

Spork.prefork do
  ENV["RAILS_ENV"] ||= 'test'
  require File.expand_path("../../config/environment", __FILE__)
  require 'rspec/rails'
  require 'rspec/autorun'

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

  ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)

  RSpec.configure do |config|

    config.use_transactional_fixtures = false

    config.before(:suite) do
      DatabaseCleaner.strategy = :truncation
    end

    config.before(:each) do
      DatabaseCleaner.start
    end

    config.after(:each) do
      DatabaseCleaner.clean
    end

    config.fixture_path = "#{::Rails.root}/spec/fixtures"

    config.infer_base_class_for_anonymous_controllers = false

    config.order = "random"
    config.include Capybara::DSL
  end
end

Spork.each_run do
end

Answer 1

不完全确定这会解决您的问题，但使用事务而不是截断要快得多：

config.before(:each) do
  # Use really fast transaction strategy for all
  # examples except `js: true` capybara specs
  DatabaseCleaner.strategy = example.metadata[:js] ? :truncation : :transaction
  DatabaseCleaner.start
end

运行Spork时没有连接到PG

1 个答案: