javascript - 使用 Zombie.js 查询 Backbone.js 应用程序的 DOM

Question

刚刚尝试 Zombie.js今天第一次访问通过 javascript(特别是 Backbone.js 应用程序)填充 DOM 元素的页面时遇到问题。作为一个简单的例子，我访问了 Backbone.js Todo app并手动添加了一些项目。然后我尝试使用 Zombie 获取 #todo-list 元素中的 html，但返回时是空的。我已经设置了 browser.runScripts = true，所以不应该一切都准备好让 Zombie 查询吗？

看源码，里面的HTML确实是空的。这甚至可以用 Zombie.js 实现吗？或者我是否需要使用 Jasmine 之类的东西，就像完成的一样here ？

我在下面提供了示例代码以及我收到的响应。

var zombie = require('zombie'),
vows = require('vows'),
assert = require('assert');

var baseUrl = 'http://documentcloud.github.com/backbone/examples/todos/index.html';

vows.describe('Zombie Tests on a Backbone App').addBatch({
'Navigate to Todo List' : {
  topic: function () {
    browser = new zombie.Browser({ debug: true });
    browser.runScripts = true;
    browser.on('error',function (err){console.log(err.stack)});
    browser.visit(baseUrl, this.callback);
  },
  'Can see todo list' : function (err,browser,status) {
    console.log('todo-list inner:' + browser.querySelector("#todo-list").innerHTML);
    // actual tests would go here
  }
},
}).export(module);

运行 vows 的输出:

> vows test/todo-test.js --spec

♢ Zombie Tests on a Backbone App

Zombie: GET http://documentcloud.github.com/backbone/examples/todos/index.html
Zombie: GET http://documentcloud.github.com/backbone/examples/todos/index.html => 200
Zombie: GET http://documentcloud.github.com/backbone/test/vendor/json2.js
Zombie: GET http://documentcloud.github.com/backbone/test/vendor/jquery-1.5.js
Zombie: GET http://documentcloud.github.com/backbone/test/vendor/underscore-1.1.6.js
Zombie: GET http://documentcloud.github.com/backbone/backbone.js
Zombie: GET http://documentcloud.github.com/backbone/examples/backbone-localstorage.js
Zombie: GET http://documentcloud.github.com/backbone/examples/todos/todos.js
Zombie: GET http://documentcloud.github.com/backbone/examples/backbone-localstorage.js => 200
Zombie: GET http://documentcloud.github.com/backbone/test/vendor/json2.js => 200
Zombie: GET http://documentcloud.github.com/backbone/test/vendor/underscore-1.1.6.js => 200
Zombie: GET http://documentcloud.github.com/backbone/backbone.js => 200
Zombie: GET http://documentcloud.github.com/backbone/examples/todos/todos.js => 200
Zombie: GET http://documentcloud.github.com/backbone/test/vendor/jquery-1.5.js => 200
Zombie: Firing timeout 1, delay: 1
todolist inner:
  Navigate to Todo List
    ✓ Can see todo list

✓ OK » 1 honored (3.824s)

Answer 1

如果您使用 browser.html 方法，那么您的示例有效 — 我认为问题出在 browser 对象没有 querySelector 方法(不过它确实有一个 query and queryAll method )。

这是修改后的工作片段:

'Can see todo list' : function (err, browser, status) {
  var list = browser.html('#todo-list');
  console.log('todo-list inner: ' + list);
  // actual tests would go here
}