ruby-on-rails - RSpec 查看测试 : How to modify params?

Question

我正在尝试使用 RSpec 测试我的观点。给我带来麻烦的特定 View 会根据 url 参数改变其外观:
link_to "sort>name", model_path(:sort_by => 'name')结果是 http://mydomain/model?sort_by=name
然后我的 View 使用这个参数:

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

RSpec 看起来像这样:

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

我想在 RSpec 中测试我的 View (没有 Controller )，但我无法将此参数输入我的 params多变的。我试过 assign在所有不同的口味:

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

assign[:params][:sort_by] = 'name'

...

到目前为止没有成功。每个想法都值得赞赏。

Answer 1

如果它是 Controller 测试，那么它将是

controller.stub!(:params).and_return {}

如果它是一个辅助测试，那么它将是:

helper.stub!(:params).and_return {}

它是一个 View 测试，它将是:

view.stub!(:params).and_return {}

如果您收到如下警告。

Deprecation Warnings:

Using `stub` from rspec-mocks' old `:should` syntax without explicitly enabling the syntax is deprecated. Use the new `:expect` syntax or explicitly enable `:should` instead. Called from /home/akbarbin/Documents/Office/projects/portfolio/spec/views/admin/waste_places/new.html.erb_spec.rb:7:in `block (2 levels) in <top (required)>'.


If you need more of the backtrace for any of these deprecations to
identify where to make the necessary changes, you can configure
`config.raise_errors_for_deprecations!`, and it will turn the
deprecation warnings into errors, giving you the full backtrace.

1 deprecation warning total

Finished in 4.86 seconds (files took 4.72 seconds to load)

你可以把它改成

allow(view).to receive(:params).and_return({sort_by: 'name'})