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require 'abstract_unit'

module Render
  class BlankRenderController < ActionController::Base
    self.view_paths = [ActionView::FixtureResolver.new(
      "render/blank_render/index.html.erb"                  => "Hello world!",
      "render/blank_render/access_request.html.erb"         => "The request: <%= request.method.to_s.upcase %>",
      "render/blank_render/access_action_name.html.erb"     => "Action Name: <%= action_name %>",
      "render/blank_render/access_controller_name.html.erb" => "Controller Name: <%= controller_name %>",
      "render/blank_render/overriden_with_own_view_paths_appended.html.erb"              => "parent content",
      "render/blank_render/overriden_with_own_view_paths_prepended.html.erb"              => "parent content",
      "render/blank_render/overriden.html.erb"              => "parent content",
      "render/child_render/overriden.html.erb"              => "child content"
    )]

    def index
      render
    end

    def access_request
      render :action => "access_request"
    end

    def render_action_name
      render :action => "access_action_name"
    end

    def overriden_with_own_view_paths_appended
    end

    def overriden_with_own_view_paths_prepended
    end

    def overriden
    end

    private

    def secretz
      render :text => "FAIL WHALE!"
    end
  end

  class DoubleRenderController < ActionController::Base
    def index
      render :text => "hello"
      render :text => "world"
    end
  end

  class ChildRenderController < BlankRenderController
    append_view_path ActionView::FixtureResolver.new("render/child_render/overriden_with_own_view_paths_appended.html.erb" => "child content")
    prepend_view_path ActionView::FixtureResolver.new("render/child_render/overriden_with_own_view_paths_prepended.html.erb" => "child content")
  end

  class RenderTest < Rack::TestCase
    test "render with blank" do
      with_routing do |set|
        set.draw do
          match ":controller", :action => 'index'
        end

        get "/render/blank_render"

        assert_body "Hello world!"
        assert_status 200
      end
    end

    test "rendering more than once raises an exception" do
      with_routing do |set|
        set.draw do
          match ":controller", :action => 'index'
        end

        assert_raises(AbstractController::DoubleRenderError) do
          get "/render/double_render", {}, "action_dispatch.show_exceptions" => false
        end
      end
    end
  end

  class TestOnlyRenderPublicActions < Rack::TestCase
    describe "Only public methods on actual controllers are callable actions"

    test "raises an exception when a method of Object is called" do
      assert_raises(AbstractController::ActionNotFound) do
        get "/render/blank_render/clone", {}, "action_dispatch.show_exceptions" => false
      end
    end

    test "raises an exception when a private method is called" do
      assert_raises(AbstractController::ActionNotFound) do
        get "/render/blank_render/secretz", {}, "action_dispatch.show_exceptions" => false
      end
    end
  end

  class TestVariousObjectsAvailableInView < Rack::TestCase
    test "The request object is accessible in the view" do
      get "/render/blank_render/access_request"
      assert_body "The request: GET"
    end

    test "The action_name is accessible in the view" do
      get "/render/blank_render/render_action_name"
      assert_body "Action Name: render_action_name"
    end

    test "The controller_name is accessible in the view" do
      get "/render/blank_render/access_controller_name"
      assert_body "Controller Name: blank_render"
    end
  end

  class TestViewInheritance < Rack::TestCase
    test "Template from child controller gets picked over parent one" do
      get "/render/child_render/overriden"
      assert_body "child content"
    end

    test "Template from child controller with custom view_paths prepended gets picked over parent one" do
      get "/render/child_render/overriden_with_own_view_paths_prepended"
      assert_body "child content"
    end

    test "Template from child controller with custom view_paths appended gets picked over parent one" do
      get "/render/child_render/overriden_with_own_view_paths_appended"
      assert_body "child content"
    end

    test "Template from parent controller gets picked if missing in child controller" do
      get "/render/child_render/index"
      assert_body "Hello world!"
    end
  end
end