Question

鉴于数据库中的几个城市：

City.first.attributes => {:id => 1, :name => 'nyc'}
City.last.attributes =>  {:id => 2, :name => 'boston'}

和以下一样的路线：

match '/:city/*dest' => 'cities#do_something', :constraints => {:city => /#{City.all.map{|c| c.name}.join('|'}/}

（因此约束应评估为：/ nyc | boston /）

一个规范：

it "recognizes and generates a route for city specific paths" do
  { :put => '/bad-city/some/path' }.should route_to({:controller => "cities", :action => "do_something", :dest => 'some/path', :city => 'bad-city'})
end

我希望失败。但它过去了。

同样地：

it "doesn't route bad city names" do
  { :put => '/some-bad-city/some/path' }.should_not be_routable
end

我希望它能通过，但失败了。

似乎规范中忽略了约束，因为匹配的城市与坏的城市具有相同的行为。

这是一个已知问题，还是我错过了我需要做的事情？

Answer 1

这种方法有效：在routes.rb

中

match '/:city/*destination' => 'cities#myaction', :constraints => {:city => /#{City.all.map{|c|c.slug}.join('|')}/}

在规范中：

describe "routing" do
  before(:each) do
    @mock_city = mock_model(City, :id => 42, :slug => 'some-city')
    City.stub!(:find_by_slug => @mock_city, :all => [@mock_city])
    MyApp::Application.reload_routes!
  end

  it "recognizes and generates a route for city specific paths" do
    { :get => '/some-city/some/path' }.should route_to({:controller => "cities", :action => "myaction", :destination => 'some/path', :city => 'some-city'})
  end

  it "rejects city paths for cities that don't exist in the DB" do
    { :get => '/some-bad-city/some/path' }.should_not be_routable
  end
end

最后，我添加了一个观察者，以便在城市表发生变化时重新加载路线。

Answer 2

指定约束时，必须包含要约束的参数：

match '/:city/*dest' => 'cities#do_something', :constraints => { :city => /nyc|boston|philly/ }

如何使用RSpec测试路径约束

2 个答案: