我觉得这是一个没有太多记录的话题,至少我在这里找到了关于最佳实践的很多麻烦.
我使用cache_key在视图中分段缓存:
%tbody
- @employees.each do |employee|
- cache employee do
%tr[employee]
%td= employee.name
%td= employee.current_positions
%td= employee.home_base
%td= employee.job_classes
现在我可以在我的has_many关联的:belongs_to一侧添加:touch => true,这将完成我需要的所有内容,以保持此片段缓存最新,但对于我的生活,我很难搞清楚如何测试这个.
Drop in:touch => true很简单方便,但它会将到期逻辑分散到几个地方.我希望有一个RSpec请求规范可以遍历并检查此行为,这些内容不会发生太大变化,但可以将所有缓存需求放入一个描述应该发生的内容的特定文件中.
我尝试过这些方法:
require 'spec_helper'
include AuthenticationMacros
describe "Employee index caching" do
before do
Rails.cache.clear
ActionController::Base.perform_caching = true
login_confirmed_employee
end
after do
ActionController::Base.perform_caching = false
end
specify "the employee cache is cleared when position assignments are modified"
specify "the employee cache is cleared when home base assignments are modified"
end
这些规格充实了Capybara的步骤,当然正在进行更新,我认为我在正确的轨道上.但测试以奇怪的方式闪烁.我会修改规范以输出员工对象cache_key,有时cache_keys会改变,有时候不会改变,有时规格会通过,有时候不会.
这甚至是一个好方法吗？
我知道SO想要回答的问题,所以要开始:当我的测试环境默认没有缓存时,如何设置和拆除此测试以使用缓存？但是,一般情况下,如果您取得了成功,我真的很想听听您如何在应用中成功测试片段缓存.
编辑
我接受了cailinanne的答案,因为它解决了我特别询问的问题,但我已经决定,如果你能摆脱它,我甚至不推荐集成测试缓存. …
我有一个Backbone收集规范(当然是todos),它使用Sinon伪造服务器响应和夹具数据.这通过独立的Jasmine但在我的Jasmine Headless Webkit设置下失败.
失败是这样的:
Todos collection when fetching models from the server should parse todos from the response.
Expected 0 to equal 2. (line ~58)
expect(this.todos.length).toEqual(this.fixture.response.todos.length);
Sinon和我的夹具正确地返回了一个带有2个待办事项的假reposonse,但是在集合中没有解析todos.
有一个小提琴显示所有这些与Jasmine独立在这里工作
我的Jasmine Headless Webkit加载顺序如下:
clyde:backbone-jasmine andy$ jasmine-headless-webkit -l
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-core-1.1.0/lib/jasmine-core/jasmine.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-core-1.1.0/lib/jasmine-core/jasmine-html.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-core-1.1.0/lib/jasmine-core/jasmine.css
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-headless-webkit-0.8.4/vendor/assets/javascripts/jasmine-extensions.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-headless-webkit-0.8.4/vendor/assets/javascripts/intense.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-headless-webkit-0.8.4/vendor/assets/javascripts/headless_reporter_result.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-headless-webkit-0.8.4/vendor/assets/javascripts/jasmine.HeadlessConsoleReporter.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-headless-webkit-0.8.4/vendor/assets/javascripts/jsDump.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-headless-webkit-0.8.4/vendor/assets/javascripts/beautify-html.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jquery-rails-2.0.2/vendor/assets/javascripts/jquery.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jquery-rails-2.0.2/vendor/assets/javascripts/jquery_ujs.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-core-1.1.0/lib/jasmine-core/json2.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/backbone-rails-0.9.2/vendor/assets/javascripts/underscore.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/backbone-rails-0.9.2/vendor/assets/javascripts/backbone.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/backbone-rails-0.9.2/vendor/assets/javascripts/backbone-rails.js
/Users/andy/Code/backbone-jasmine/app/assets/javascripts/app/collections/todos.js.coffee
/Users/andy/Code/backbone-jasmine/app/assets/javascripts/app/models/todo.js.coffee
/Users/andy/Code/backbone-jasmine/app/assets/javascripts/application.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-spec-extras-0.0.2/vendor/assets/javascripts/jasmine-jquery.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-spec-extras-0.0.2/vendor/assets/javascripts/sinon.js
/Users/andy/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/jasmine-spec-extras-0.0.2/vendor/assets/javascripts/jasmine-sinon.js
/Users/andy/Code/backbone-jasmine/spec/javascripts/helpers/spec_helper.js.coffee
/Users/andy/Code/backbone-jasmine/spec/javascripts/helpers/valid_response.js.coffee
/Users/andy/Code/backbone-jasmine/spec/javascripts/fixtures/todos_fixture.js.coffee
/Users/andy/Code/backbone-jasmine/spec/javascripts/app/models/todo_spec.js.coffee
/Users/andy/Code/backbone-jasmine/spec/javascripts/app/collections/todos_spec.js.coffee
和代码(当然也在小提琴中):
# abbreviated todo model
class window.Todo extends Backbone.Model
# complete todos collection
class window.Todos extends Backbone.Collection
model: …