Rspec 规范测试中的stubing chef_环境变量

在我的规范测试中对chef_env变量的刺伤有问题。配方的一部分：

recipe.rb

example_credentials = data_bag_item(:credentials, 'example')

    template '/etc/nginx/sites-available/example.conf' do
      source 'http/example.conf.erb'
      owner 'root'
      group 'root'
      mode '0644'
      variables({
        authorization: Base64.strict_encode64(example_credentials[node.chef_environment]['example_auth']),
        cluster_id: node['project']['http']['example']['cluster_id']
      })

end

require 'spec_helper'

    describe 'project::http' do
      let(:chef_run) do
        ChefSpec::SoloRunner.new(platform: 'ubuntu', version: '16.04') do |node|
          env = Chef::Environment.new
          env.name 'test'
          expect(node).to receive(:chef_environment).and_return env.name
          expect(Chef::Environment).to receive(:load).and_return env
          end.converge(described_recipe)
        end
    
    
      before(:each) do
        stub_data_bag_item(:credentials, 'example').and_return(example_auth: 'test_value')
      end
end

测试它：

测试.rb

example_credentials = data_bag_item(:credentials, 'example')

    template '/etc/nginx/sites-available/example.conf' do
      source 'http/example.conf.erb'
      owner 'root'
      group 'root'
      mode '0644'
      variables({
        authorization: Base64.strict_encode64(example_credentials[node.chef_environment]['example_auth']),
        cluster_id: node['project']['http']['example']['cluster_id']
      })

end

require 'spec_helper'

    describe 'project::http' do
      let(:chef_run) do
        ChefSpec::SoloRunner.new(platform: 'ubuntu', version: '16.04') do |node|
          env = Chef::Environment.new
          env.name 'test'
          expect(node).to receive(:chef_environment).and_return env.name
          expect(Chef::Environment).to receive(:load).and_return env
          end.converge(described_recipe)
        end
    
    
      before(:each) do
        stub_data_bag_item(:credentials, 'example').and_return(example_auth: 'test_value')
      end
end

但是我还是发现了一个错误

   expected no Exception, got #<NoMethodError: undefined method `[]' for nil:NilClass> with backtrace

---

预期无异常，get#当您尝试访问哈希嵌套属性，但没有要查找的父属性时，通常会引发此错误

在您的情况下，存根凭证数据包并返回哈希：

{
示例_auth:“测试值”
}

那么在这一行：

授权：Base64.strict\u encode64（示例\u凭证[node.chef\u环境]['example\u auth']），

您正试图访问散列的“test”键（=node.chef_环境），但它不在那里。您需要更改存根数据包，这样它也有“测试”键

stub\u data\u bag\u项目（：凭证，'example'）。并返回(
{
“测试”=>{
“示例验证”=>“测试值”
}
}
)
您的属性中是否设置了
默认['test']['example\u auth']
设置？@DracoAter我添加了属性，但它没有做任何事情