javascript - Firestore (7.14.3) 内部断言失败 : value must be undefined or Uint8Array

Question

我的脚本不断提出这个错误。我编写的代码用于测试 Firestore 安全规则。
我基本上想在向其添加 javascript 函数时测试我的 Firestore 安全性。可以在 Firestore 控制台中编写规则并在那里保存它们，但我想使用 IDE - VS 代码。

我想知道如何修复“FIRESTORE (7.14.3) INTERNAL ASSERTION FAILED: value must be undefined or Uint8Array”。我更新了我的 npm 并尝试了我在 Github 上找到的答案，该答案说我要先安装“npm i jest-environment-uint8array”。那没起效。我也尝试过使用“TextEncoder”
比如: var uint8array = new TextEncoder("utf-8").encode("Posts");
var string = new TextDecoder("utf-8").decode(uint8array);
它也没有奏效。如果你们能彻底回答我，我将非常感激，因为我只是一个新手。

我的测试代码是

const { setup, teardown } = require("./helpers");

describe("General Safety Rules", () => {
  afterEach(async () => {
    await teardown();
  });

  test("should deny a read to the posts collection", async () => {
    const db = await setup();
    const postsRef = db.collection("Posts");
    await expect(postsRef.get()).toDeny();
  });

});

我的助手 js 基本上完成了我的代码完成后的设置和拆卸。

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

module.exports.setup = async (auth, data) => {
  const projectId = `rules-spec-${Date.now()}`;

  const app = firebase.initializeTestApp({
    projectId,
    auth
  });

  const db = app.firestore();

  // Apply the test rules so we can write documents
  await firebase.loadFirestoreRules({
    projectId,
    rules: fs.readFileSync("firestore-test.rules", "utf8")
  });

  // write mock documents if any
  if (data) {
    for (const key in data) {
      const ref = db.doc(key); // This means the key should point directly to a document
      await ref.set(data[key]);
    }
  }

  // Apply the actual rules for the project
  await firebase.loadFirestoreRules({
    projectId,
    rules: fs.readFileSync("firestore.rules", "utf8")
  });

  return db;
};

module.exports.teardown = async () => {
  // Delete all apps currently running in the firebase simulated environment
  Promise.all(firebase.apps().map(app => app.delete()));
};

错误是:

jest ./spec

(node:8200) PromiseRejectionHandledWarning: Promise rejection was handled asynchronously (rejection id: 1)
 FAIL  spec/collections.spec.js (10.284 s)
  General Safety Rules
    × should deny a read to the posts collection (4598 ms)
    × should deny a write to users even when logged in (131 ms)

  ● General Safety Rules › should deny a read to the posts collection

    FIRESTORE (7.14.3) INTERNAL ASSERTION FAILED: value must be undefined or Uint8Array

      at fail (node_modules/@firebase/firestore/src/util/assert.ts:39:9)
      at hardAssert (node_modules/@firebase/firestore/src/util/assert.ts:53:5)
      at JsonProtoSerializer.fromBytes (node_modules/@firebase/firestore/src/remote/serializer.ts:250:7)
      at JsonProtoSerializer.fromWatchChange (node_modules/@firebase/firestore/src/remote/serializer.ts:431:32)
      at PersistentListenStream.onMessage (node_modules/@firebase/firestore/src/remote/persistent_stream.ts:568:41)
      at node_modules/@firebase/firestore/src/remote/persistent_stream.ts:448:21
      at node_modules/@firebase/firestore/src/remote/persistent_stream.ts:501:18
      at node_modules/@firebase/firestore/src/util/async_queue.ts:358:14

  ● General Safety Rules › should deny a write to users even when logged in

    FIRESTORE (7.14.3) INTERNAL ASSERTION FAILED: value must be undefined or Uint8Array

      at fail (node_modules/@firebase/firestore/src/util/assert.ts:39:9)
      at hardAssert (node_modules/@firebase/firestore/src/util/assert.ts:53:5)
      at JsonProtoSerializer.fromBytes (node_modules/@firebase/firestore/src/remote/serializer.ts:250:7)
      at JsonProtoSerializer.fromWatchChange (node_modules/@firebase/firestore/src/remote/serializer.ts:431:32)
      at PersistentListenStream.onMessage (node_modules/@firebase/firestore/src/remote/persistent_stream.ts:568:41)
      at node_modules/@firebase/firestore/src/remote/persistent_stream.ts:448:21
      at node_modules/@firebase/firestore/src/remote/persistent_stream.ts:501:18
      at node_modules/@firebase/firestore/src/util/async_queue.ts:358:14

  console.error
    [2020-05-20T13:13:11.851Z]  @firebase/firestore: Firestore (7.14.3): FIRESTORE (7.14.3) INTERNAL ASSERTION FAILED: value must be undefined or Uint8Array

      at Logger.defaultLogHandler [as _logHandler] (node_modules/@firebase/logger/src/logger.ts:115:57)
      at logError (node_modules/@firebase/firestore/src/util/log.ts:45:20)
      at fail (node_modules/@firebase/firestore/src/util/assert.ts:34:3)
      at hardAssert (node_modules/@firebase/firestore/src/util/assert.ts:53:5)
      at JsonProtoSerializer.fromBytes (node_modules/@firebase/firestore/src/remote/serializer.ts:250:7)
      at JsonProtoSerializer.fromWatchChange (node_modules/@firebase/firestore/src/remote/serializer.ts:431:32)

Test Suites: 1 failed, 1 total
Tests:       2 failed, 2 total
Snapshots:   0 total
Time:        18.711 s
Ran all test suites matching /.\\spec/i.
(node:8200) UnhandledPromiseRejectionWarning: FirebaseError: Caught error after test environment was torn down

The client has already been terminated.
(node:8200) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 3)
(node:8200) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
Jest did not exit one second after the test run has completed.

This usually means that there are asynchronous operations that weren't stopped in your tests. Consider running Jest with `--detectOpenHandles` to troubleshoot this issue.

Answer 1

似乎是最新@firebase/testing@0.19.4之间的兼容性问题版本和内部使用的firebase@7.14.4版本。我遇到了同样的错误，并使用了临时解决方法。

尝试降级您的@firebase/testing版本为 ^0.15.0 .经过快速npm i它对我有用。一旦它们修复了当前的兼容性问题，您仍然可以稍后升级到最新版本。

一旦发生这种情况，我会更新我的答案。

更新:
这是我在 firebase-js-sdk GitHub 页面 https://github.com/firebase/firebase-js-sdk/issues/3096 上创建的问题.

似乎与测试框架 Jest 中的一个错误有关。该问题描述了一种不需要降级的解决方法。

一旦不再需要解决方法，我将立即更新我的答案。