如何在使用 @firebase/testing 编写集成测试时调用 Firebase HTTPS 可调用函数？

Question

我正在尝试为我的代码编写集成测试。我想使用 Firebase Local Emulator 能够进行端到端测试并查看文档和集合是否正确更新。 为了了解模拟器的工作原理，我编写了一个示例触发器

exports.myItemAdder = functions.https.onCall(async (data, context) => {
  if(!context.auth){
    throw new functions.https.HttpsError('unauthenticated', 'Sign in');
  }
  
  try{
    await db.doc('test-items/test-item').set({
      name: data.name,
      description: 'Learning to write Integration Tests'
    });
  }
  catch(error){
    throw new functions.https.HttpsError('unknown', error);
  }

  return 'Document Added'
});

这就是我的测试结果

describe('Calling myItemAdder adds another document', () => {
  const db = firebase.initializeTestApp({ projectId: REAL_FIREBASE_PROJECT_ID, auth: aliceAuth }).firestore();
  
  const functions = firebase.initializeTestApp({ projectId: REAL_FIREBASE_PROJECT_ID }).functions();
  functions.useFunctionsEmulator("localhost:5001");
  let myItemAdderFunc = functions.httpsCallable('myItemAdder')

  after(() => {
    firebase.clearFirestoreData({projectId: REAL_FIREBASE_PROJECT_ID});
  });

  it('Should return document added', async() => {
    const result = await myItemAdderFunc({'name': 'Test'});
    expect(result.data).to.equal('1Document Added');  // This should fail
  });
});

但是当我使用

npm test

命令运行测试时，它给了我这个错误

Error: internal
      at new HttpsErrorImpl (node_modules/@firebase/functions/dist/index.node.cjs.js:59:28)
      at _errorForResponse (node_modules/@firebase/functions/dist/index.node.cjs.js:154:12)
      at Service.<anonymous> (node_modules/@firebase/functions/dist/index.node.cjs.js:539:33)
      at step (node_modules/@firebase/functions/node_modules/tslib/tslib.js:136:27)
      at Object.next (node_modules/@firebase/functions/node_modules/tslib/tslib.js:117:57)
      at fulfilled (node_modules/@firebase/functions/node_modules/tslib/tslib.js:107:62)

当我使用

firebase functions:shell

调用此函数时，它运行完美并将文档添加到 Firestore 的模拟版本中

Answer 1

我刚刚遇到了同样的错误。在调试并单步执行 Firebase 代码后，我意识到

useFunctionsEmulator

需要一个有效的原始 URL，包括一个方案。它的JSDoc给出了一个例子：

这是我的代码。另请注意调用

auth

中的

initializeTestApp

：它会传播到

request.auth

中的函数：

const firebase = require("@firebase/testing");

[...]

it("call helloWorld callable function", async () => {
  const functions = firebase.initializeTestApp({ projectId: MY_PROJECT_ID, auth: { uid: "USER_1" } }).functions();
  functions.useFunctionsEmulator("http://localhost:5001");
  const helloWorld = functions.httpsCallable('callables-helloWorld');
  const result = await helloWorld({ text: 'Hello!' });
  assert.equal(result.data.hello, "world");
});