select specific link by href with webrat

I'm writing an integration test for rspec and I want to te开发者_如何转开发st that clicking on a link goes to the correct model page. More specifically, I want to test this on a list of links that have the same name but different underlying URLs.

From what I've learned so far, you cannot use a css attribute selector with click_link as it only looks for specific text or dom ID. Instead I'm trying to use the webrat within method, but once I select the link how do I click it? I figured link.click within the link's scope would work, but it fails saying the method click is undefined:

Failure/Error: link.click
NoMethodError:
  undefined method `click' for #<Webrat::Scope:0x0000010505ae00>

Here's my test:

require 'spec_helper'

describe "BrandLinks" do
  before(:each) do
    @base_title = "My App - "

    @brand = Factory(:brand)
    second = Factory(:brand) # <= Same name, different slug
    third = Factory(:brand, :name => "Awesome USA Brand!!")
    @brands = [@brand, second, third]
  end

  it "should show me the brand page when I click on a brand link" do
    get '/brands'
    within "a[href=#{brand_path(@brand)}]" do |link|
      link.click
    end
    response.should be_success
    response.should have_selector(
      "title", 
      :content => "#{@base_title}Brand - #{@brand.name}"
    )
  end
end

---

Have you tried click_link_within? According to the docs

Works like click_link, but only looks for the link text within a given selector

---

First, the error message is that the .click method is undefined. Try .click_link instead.

You'll also need the text of the link. That is, within defines a scope, and click_link tells it which link to click inside that scope.

within "a[href=#{brand_path(@brand)}]" do |scope| # within a specific <a> tag
  scope.click_link @brand # click on @brand text
end

click_link_within is a shortcut for within plus click_link, so this should be identical to the above:

click_link_within "a[href=#{brand_path(@brand)}]", @brand

I'm still trying to understand how the within selectors work myself (which is how I found this question!). Here's what I've got so far:

The Webrat Session object's within method takes a selector argument, which it uses to push a new scope onto a stack by passing the selector to Scope.from_scope, which creates a new session with @selector = selector. So far I can't find the definition of selector. This 2009 blog post says a selector can be a CSS type, class, or ID, but it doesn't cite a source for that.