method

with_routing

v3.2.1 - Show latest stable - 0 notes - Class: ActionDispatch::Assertions::RoutingAssertions

with_routing() public

A helper to make it easier to test different route configurations. This method temporarily replaces @routes with a new RouteSet instance.

The new instance is yielded to the passed block. Typically the block will create some routes using map.draw { map.connect ... }:

with_routing do |set|
  set.draw do |map|
    map.connect ':controller/:action/:id'
      assert_equal(
        ['/content/10/show', {}],
        map.generate(:controller => 'content', :id => 10, :action => 'show')
    end
  end
end

Show source

# File actionpack/lib/action_dispatch/testing/assertions/routing.rb, line 146
      def with_routing
        old_routes, @routes = @routes, ActionDispatch::Routing::RouteSet.new
        if defined?(@controller) && @controller
          old_controller, @controller = @controller, @controller.clone
          _routes = @routes

          # Unfortunately, there is currently an abstraction leak between AC::Base
          # and AV::Base which requires having the URL helpers in both AC and AV.
          # To do this safely at runtime for tests, we need to bump up the helper serial
          # to that the old AV subclass isn't cached.
          #
          # TODO: Make this unnecessary
          @controller.singleton_class.send(:include, _routes.url_helpers)
          @controller.view_context_class = Class.new(@controller.view_context_class) do
            include _routes.url_helpers
          end
        end
        yield @routes
      ensure
        @routes = old_routes
        if defined?(@controller) && @controller
          @controller = old_controller
        end
      end

with_routing

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