Support passing an ActiveRecord model to #within when in Rails mode [#68

 state:resolved] (Luke Melia)

History.txt

@@ -20,6 +20,8 @@
   * Use Hpricot and REXML when not parsing with Nokogiri (on JRuby, for example)
 
 * Minor enhancements
+
+  * Support passing an ActiveRecord model to #within when in Rails mode [#68] (Luke Melia)
   * Added assert_contain, assert_not_contain [#86] (Mike Gaffney, Amos King)
   * Add configuration options for the Selenium environment and port (Kieran Pilkington)
   * Maximize the browser window after initializing Selenium (Luke Melia)

lib/webrat/rails.rb

@@ -2,10 +2,27 @@
 
 require "action_controller"
 require "action_controller/integration"
+require "action_controller/record_identifier"
 
 module Webrat
   class RailsSession < Session #:nodoc:
-
+    include ActionController::RecordIdentifier
+
+    # The Rails version of within supports passing in a model and Webrat
+    # will apply a scope based on Rails' dom_id for that model.
+    #
+    # Example:
+    #   within User.last do
+    #     click_link "Delete"
+    #   end
+    def within(selector_or_object, &block)
+      if selector_or_object.is_a?(String)
+        super
+      else
+        super('#' + dom_id(selector_or_object), &block)
+      end
+    end
+
     def doc_root
       File.expand_path(File.join(RAILS_ROOT, 'public'))
     end

spec/integration/rails/app/controllers/webrat_controller.rb

@@ -1,3 +1,9 @@
+class FakeModel
+  def id
+    nil
+  end
+end
+
 class WebratController < ApplicationController
 
   def form

spec/integration/rails/app/views/webrat/form.html.erb

@@ -13,5 +13,11 @@
     <%= select_tag "month", "<option></option><option>January</option>" %>
   </label>
 
+  <% div_for FakeModel.new do %>
+    <label>
+      Object field <%= text_field_tag "object_field" %>
+    </label>
+  <% end %>
+  
   <%= submit_tag "Test" %>
 <% end %>

spec/integration/rails/test/integration/webrat_rails_test.rb

@@ -0,0 +1,17 @@
+require 'test_helper'
+
+class WebratTest < ActionController::IntegrationTest
+
+  test "should scope within an object" do
+    visit root_path
+
+    within FakeModel.new do
+      fill_in "Object field", :with => "Test"
+
+      assert_raise Webrat::NotFoundError do
+        check "TOS"
+      end
+    end
+  end
+
+end

spec/integration/rails/test/integration/webrat_test.rb

@@ -1,6 +1,7 @@
 require 'test_helper'
 
 class WebratTest < ActionController::IntegrationTest
+
   test "should visit pages" do
     visit root_path
     assert_tag "Webrat Form"
@@ -24,4 +25,5 @@ class WebratTest < ActionController::IntegrationTest
     visit external_redirect_path
     assert response.redirect?
   end
+
 end

spec/private/rails/rails_session_spec.rb

@@ -85,4 +85,26 @@
   it "should provide a doc_root" do
     Webrat::RailsSession.new(mock("integration session")).should respond_to(:doc_root)
   end
+
+  it "should accept an ActiveRecord argument to #within and translate to a selector using dom_id" do
+    body = <<-HTML
+      <a href="/page1">Edit</a>
+      <div id="new_object">
+        <a href="/page2">Edit</a>
+      </div>
+    HTML
+
+    response = mock("response", :body => body, :headers => {}, :code => 200)
+    @integration_session.stub!(:response => response)
+    @integration_session.should_receive(:get).with("/page2", {}, nil)
+
+    rails_session = Webrat::RailsSession.new(@integration_session)
+
+    object = Object.new
+    object.stub!(:id => nil)
+
+    rails_session.within(object) do
+      rails_session.click_link 'Edit'
+    end
+  end
 end