使用 environment.ts 运行 ng 测试时出现 Angular 未定义错误

Question

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Please provider exact solution to resolve this issue.Its failing in while running angular test

I have environment.ts in project to set env data from kubernate yaml.

export const environment = {
  PROD_URL: window["env"].prodUrl || 'http://localhost:8080/v1/'
};

While running ng test, I am getting below error.

An error was thrown in afterAll
  Uncaught TypeError: Cannot read property 'prodUrl ' of undefined
  TypeError: Cannot read property 'prodUrl ' of undefined
      at Module.AytR (http://localhost:9876/_karma_webpack_/webpack:/src/environments/environment.ts:9:30)

Answer 1

window["env"] can be null / undefined . For that case just use optional chaining .

export const environment = {
  PROD_URL: window["env"]?.prodUrl || 'http://localhost:8080/v1/'
};