测试：OpenSSL :: PKey :: RSAError：PUB密钥或PRIV密钥均未：用垃圾密钥进行测试时数据不足

Question

我目前正在为通过Boxr gem与Box API交互的Proxy类编写测试。我正在从.env.test.local文件中加载环境密钥。该文件中的密钥是垃圾，因此从理论上讲应该可以，但是出现以下错误：

OpenSSL::PKey::RSAError:
       Neither PUB key nor PRIV key: not enough data

我正在使用Webmock进行测试。我使用以下内容编辑spec_helper.rb文件。

  # Configuration for Boxr mocking libraries for testin
  config.before(:suite) do
    Boxr::BOX_CLIENT = HTTPClient.new
  end

  config.before(:each) do
    stub_const('ENV', {'BOX_USER_ID' => '123',
                       'BOX_CLIENT_SECRET' => "345",
                       'BOX_DEVELOPER_TOKEN' => "123",
                       'BOX_CLIENT_ID' => "1234",
                       'JWT_PRIVATE_KEY' => 'hello',
                       'JWT_PRIVATE_KEY_PASSWORD' => '1234545677',
                       'JWT_PUBLIC_KEY_ID' => "12345467"})

    stub_request(:post, "https://api.box.com/oauth2/token").
    with(:body => {"assertion"=>ENV["ASSERTION"], "client_id"=>ENV["BOX_USER_ID"], "client_secret"=>ENV["BOX_CLIENT_SECRET"], "grant_type"=>"urn:ietf:params:oauth:grant-type:jwt-bearer"},
         :headers => {'Accept'=>'*/*', 'Content-Type'=>'application/x-www-form-urlencoded', 'Date'=>'Time.now', 'User-Agent'=>'HTTPClient/1.0 (2.8.3, ruby 2.5.3 (2018-10-18))'}).
    to_return(:status => 200, :body => "", :headers => {})
  end

我在环境密钥中添加了垃圾数据，但现在确定这是否是加载环境密钥进行测试的正确方法。

这是我一直在进行的测试。

require './src/clients/box_api'
require 'dotenv'
require 'pry'
Dotenv.load('.env.test.local')

RSpec.describe BoxApi do
  describe '#client' do
    context 'success' do
      it 'Create Boxr::Client object' do
        # setup
        box_api = BoxApi.new
        # exercise
        result = box_api.client

        # verify
        expect(result.class).to eq Boxr::Client
      end
    end

    context 'fail' do
      it 'Fails to create Boxr::Client object' do
        expect { Boxr::Client.new(nil) }.to raise_error(Boxr::BoxrError)
      end
    end
  end

  describe '#folder' do
    context 'success' do
      it 'Retrieves a folder from Box' do
        stub_request(:get, "http://api.box.com/folders/123").to_return(body: {id: "123"}.to_json )
        box_api = BoxApi.new

        expect(box_api.folder("123")).to eq({id: "123"})
      end
    end

    context 'fail' do
      it 'Raise error for folder not found' do
        stub_request(:get, "http://api.box.com/folders/123").to_return(body: {id: "123"}.to_json )
        box_api = BoxApi.new

        expect(box_api.folder("N")).to raise_error(Boxr::BoxrError)
      end
    end
  end
end

从client实例调用BoxApi时似乎会引发错误。

require 'boxr'

class BoxApi
  attr_reader :user_id, :private_key, :private_key_password, :public_key_id,
              :client_id, :client_secret, :box_folder_id, :box_domain

  def initialize
    @user_id              = ENV.fetch('BOX_USER_ID')
    @private_key          = ENV.fetch('JWT_PRIVATE_KEY')
    @private_key_password = ENV.fetch('JWT_PRIVATE_KEY_PASSWORD')
    @public_key_id        = ENV.fetch('JWT_PUBLIC_KEY_ID')
    @client_id            = ENV.fetch('BOX_CLIENT_ID')
    @client_secret        = ENV.fetch('BOX_CLIENT_SECRET')
  end

  def client
    @client ||= Boxr::Client.new(token.access_token)
  end

  def token
    Boxr.get_user_token(@user_id,
                        private_key: @private_key,
                        private_key_password: @private_key_password,
                        public_key_id: @public_key_id,
                        client_id: @client_id,
                        client_secret: @client_secret)
  end

  def prepare_folder(folder_id)
    client.folder_from_id(folder_id)
  end

  def folder(box_folder_id)
    prepare_folder(box_folder_id)
  end

在创建对client的调用时，这些环境键不起作用。我似乎无法理解为什么会收到此错误。此键不应该在测试中起作用。