rails--rails/actionpack/test/journey/routes_test.rb

require 'abstract_unit'

module ActionDispatch
  module Journey
    class TestRoutes < ActiveSupport::TestCase
      attr_reader :routes, :mapper

      def setup
        @route_set  = ActionDispatch::Routing::RouteSet.new
        @routes = @route_set.router.routes
        @router = @route_set.router
        @mapper = ActionDispatch::Routing::Mapper.new @route_set
        super
      end

      def test_clear
        mapper.get "/foo(/:id)", to: "foo#bar", as: 'aaron'
        assert_not_predicate routes, :empty?
        assert_equal 1, routes.length

        routes.clear
        assert routes.empty?
        assert_equal 0, routes.length
      end

      def test_ast
        mapper.get "/foo(/:id)", to: "foo#bar", as: 'aaron'
        ast = routes.ast
        mapper.get "/foo(/:id)", to: "foo#bar", as: 'gorby'
        assert_not_equal ast, routes.ast
      end

      def test_simulator_changes
        mapper.get "/foo(/:id)", to: "foo#bar", as: 'aaron'
        sim = routes.simulator
        mapper.get "/foo(/:id)", to: "foo#bar", as: 'gorby'
        assert_not_equal sim, routes.simulator
      end

      def test_partition_route
        mapper.get "/foo(/:id)", to: "foo#bar", as: 'aaron'

        assert_equal 1, @routes.anchored_routes.length
        assert_predicate @routes.custom_routes, :empty?

        mapper.get "/hello/:who", to: "foo#bar", as: 'bar', who: /\d/

        assert_equal 1, @routes.custom_routes.length
        assert_equal 1, @routes.anchored_routes.length
      end

      def test_first_name_wins
        mapper.get "/hello", to: "foo#bar", as: 'aaron'
        assert_raise(ArgumentError) do
          mapper.get "/aaron", to: "foo#bar", as: 'aaron'
        end
      end
    end
  end
end