RSpec View 测试:如何修改参数? [英] RSpec View testing: How to modify params?

问题描述

我正在尝试使用 RSpec 测试我的视图.给我带来麻烦的特定视图会根据 url 参数改变其外观:

link_to "sort>name", model_path(:sort_by => 'name') 导致 http://mydomain/model?sort_by=name

我的视图然后像这样使用这个参数:

<% if params[:sort_by] == 'name' %><div>按名称排序</div><%结束%>

RSpec 如下所示:

它应该告诉用户排序的属性"做#问题:分配参数[:sort_for] = 'name'呈现/groups/index.html.erb"response.should have_tag("div", "按名称排序")结尾

我想在 RSpec 中测试我的视图(没有控制器)，但我无法将此参数放入我的 params 变量中.我尝试了所有不同风格的 assign:

• assign[:params] = {:sort_by =>'名字'}
• assign[:params][:sort_by] = 'name'
• ...

目前没有成功.每个想法都值得赞赏.

解决方案

那是因为您不应该在视图中使用 params.
我认为使用助手的最佳方式.

Sorted by <%= sorted_by %>

并在您的帮助文件之一中

def sorted_byparams[:sorted_by].capitalize结尾

然后你可以很容易地测试你的助手(因为在助手测试中，你可以定义 params 请求.

I am trying to test my views with RSpec. The particular view that is causing me troubles changes its appearance depending on a url parameter:

link_to "sort>name", model_path(:sort_by => 'name') which results in http://mydomain/model?sort_by=name

My view then uses this parameter like that:

<% if params[:sort_by] == 'name' %>
<div>Sorted by Name</div>
<% end %>

The RSpec looks like this:

it "should tell the user the attribute for sorting order" do
    #Problem: assign params[:sort_for] = 'name' 
    render "/groups/index.html.erb"
    response.should have_tag("div", "Sorted by Name")
end

I would like to test my view (without controller) in RSpec but I can't get this parameter into my params variable. I tried assign in all different flavours:

• assign[:params] = {:sort_by => 'name'}
• assign[:params][:sort_by] = 'name'
• ...

no success so far. Every idea is appreciated.

解决方案

That's because you shouldn't be using params in your views.
The best way I see it to use an helper.

<div>Sorted by <%= sorted_by %></div>

And in one of your helper files

def sorted_by
    params[:sorted_by].capitalize
end

Then you can test your helpers quite easily (because in helpers tests, you can define the params request.

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