错误：使用Angular测试Apollo客户端

Question

我正在发布一个将ApolloTestingModule导入到我的测试床中的信息。当我尝试导入模块时，出现错误：

Chrome 79.0.3945 ERROR
  An error was thrown in afterAll
  ReferenceError: process is not defined
      at Module.../node_modules/graphql/jsutils/instanceOf.mjs 
      at __webpack_require__
      at Module.../node_modules/graphql/type/definition.mjs

任何帮助将不胜感激。谢谢