ruby-on-rails - Rspec 3. # 的未定义局部变量或方法 `response'

Question

我想用 rspec 测试 API Controller 。所以这是一段简单的代码:

require 'rails_helper'  
describe "GET /api/config" do

  it 'routes GET to /api/config to Api::V1::ConfigsController#show' do
    get '/api/config.json'
    expect(response).to be_success
  end

end

但是我有一个错误:

1) Configs API GET /api/config routes GET to /api/config to Api::V1::ConfigsController#show
     Failure/Error: expect(response).to be_success
     NameError:
       undefined local variable or method `response' for #<RSpec::ExampleGroups::ConfigsAPI::GETApiConfig:0x007f84d93fbb90>
     # ./spec/routing/api/v1/devise/configs_routing_spec.rb:13:in `block (3 levels) in <top (required)>'

Answer 1

在 RSpec 3 中你会做:

get '/api/config.json'
expect(response.status).to be(200)

您缺少的是描述 block 中的类型声明，即:

describe "GET /api/config", type: :controller do
end