Firebase-tools: 交易僵局中的Firestore模拟器

不要删除validate_template = true template_path = .github / ISSUE_TEMPLATE / bug_report.md

环境信息

firebase-tools： 8.5.0
平台： macOS
节点： 10.21.0

测试用例

使用两个同时进行的事务读取/写入文档时，事务将挂起（好像处于死锁状态）。

我添加了一些示例代码来说明该问题（包括一些控制台日志以阐明代码的挂起位置）。

firestore-emulator-bug-showcase.zip

重现步骤

下载示例代码后，运行：

npm install
firebase emulators:start --only firestore --debug # Assuming to be at version 8.5.0

仿真器运行时，请在其他终端上运行以下命令：

npm run test

预期行为

我希望所有测试都能成功运行。 这表示：

• “ firestore”测试成功运行。
• 在“单笔租赁”测试中，返回true 。
• 在“多次租赁”测试中，只有一笔交易返回true而另一笔交易返回false 。

实际行为

但是实际上，“多租约”测试挂起并超时。 “ firestore”和“ lease single”测试按预期运行。

请参见下面的输出：

开玩笑的输出：

> jest

PASS src/firestore.spec.ts
  firestore
    ✓ is able to communicate with emulator (1063 ms)


  console.info
    Before transaction: try to acquire lease in transaction ...

      at acquireLease (src/lease.ts:16:11)

  console.info
    Before transaction: try to acquire lease in transaction ...

      at acquireLease (src/lease.ts:16:11)

  console.info
    Before transaction: try to acquire lease in transaction ...

      at acquireLease (src/lease.ts:16:11)

PASS src/lease.single.spec.ts
  acquireLease single
    ✓ returns true when ran once (1040 ms)

  console.info
    Transaction: acquired a new lease

      at _firestore2.firestore.runTransaction (src/lease.ts:37:15)

  console.info
    Transaction: acquired a new lease

      at _firestore2.firestore.runTransaction (src/lease.ts:37:15)

  console.info
    Transaction: acquired a new lease

      at _firestore2.firestore.runTransaction (src/lease.ts:37:15)

  console.info
    After transaction: will return true

      at acquireLease (src/lease.ts:43:11)

FAIL src/lease.multi.spec.ts
  ● Test suite failed to run

    Timeout - Async callback was not invoked within the 15000 ms timeout specified by jest.setTimeout.Error: Timeout - Async callback was not invoked within the 15000 ms timeout specified by jest.setTimeout.

      at mapper (node_modules/jest-jasmine2/build/queueRunner.js:29:45)

A worker process has failed to exit gracefully and has been force exited. This is likely caused by tests leaking due to improper teardown. Try running with --runInBand --detectOpenHandles to find leaks.
Test Suites: 1 failed, 2 passed, 3 total
Tests:       2 passed, 2 total
Snapshots:   0 total
Time:        32.386 s
Ran all test suites.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @ test: `jest`
npm ERR! Exit status 1

仿真器的输出：

[2020-07-13T15:28:34.365Z] > command requires scopes: ["email","openid","https://www.googleapis.com/auth/cloudplatformprojects.readonly","https://www.googleapis.com/auth/firebase","https://www.googleapis.com/auth/cloud-platform"]
[2020-07-13T15:28:34.366Z] > authorizing via signed-in user
⚠  Could not find config (firebase.json) so using defaults. 
i  emulators: Starting emulators: firestore {"metadata":{"emulator":{"name":"hub"},"message":"Starting emulators: firestore"}}
⚠  firestore: Did not find a Cloud Firestore rules file specified in a firebase.json config file. {"metadata":{"emulator":{"name":"firestore"},"message":"Did not find a Cloud Firestore rules file specified in a firebase.json config file."}}
⚠  firestore: The emulator will default to allowing all reads and writes. Learn more about this option: https://firebase.google.com/docs/emulator-suite/install_and_configure#security_rules_configuration. {"metadata":{"emulator":{"name":"firestore"},"message":"The emulator will default to allowing all reads and writes. Learn more about this option: https://firebase.google.com/docs/emulator-suite/install_and_configure#security_rules_configuration."}}
[2020-07-13T15:28:34.384Z] Ignoring unsupported arg: projectId {"metadata":{"emulator":{"name":"firestore"},"message":"Ignoring unsupported arg: projectId"}}
[2020-07-13T15:28:34.384Z] Ignoring unsupported arg: auto_download {"metadata":{"emulator":{"name":"firestore"},"message":"Ignoring unsupported arg: auto_download"}}
[2020-07-13T15:28:34.385Z] Starting Firestore Emulator with command {"binary":"java","args":["-Duser.language=en","-jar","/Users/vdvleon/.cache/firebase/emulators/cloud-firestore-emulator-v1.11.4.jar","--host","localhost","--port",8080],"optionalArgs":["port","webchannel_port","host","rules","functions_emulator","seed_from_export"],"joinArgs":false} {"metadata":{"emulator":{"name":"firestore"},"message":"Starting Firestore Emulator with command {\"binary\":\"java\",\"args\":[\"-Duser.language=en\",\"-jar\",\"/Users/vdvleon/.cache/firebase/emulators/cloud-firestore-emulator-v1.11.4.jar\",\"--host\",\"localhost\",\"--port\",8080],\"optionalArgs\":[\"port\",\"webchannel_port\",\"host\",\"rules\",\"functions_emulator\",\"seed_from_export\"],\"joinArgs\":false}"}}
i  firestore: Firestore Emulator logging to firestore-debug.log {"metadata":{"emulator":{"name":"firestore"},"message":"Firestore Emulator logging to \u001b[1mfirestore-debug.log\u001b[22m"}}
[2020-07-13T15:28:35.488Z] API endpoint: http://localhost {"metadata":{"emulator":{"name":"firestore"},"message":"API endpoint: http://localhost"}}
[2020-07-13T15:28:35.488Z] :8080
If you are using a library that supports the FIRESTORE_EMULATOR_HOST environment variable, run:

   export FIRESTORE_EMULATOR_HOST=localhost:8080

Dev App Server is now running.

 {"metadata":{"emulator":{"name":"firestore"},"message":":8080\nIf you are using a library that supports the FIRESTORE_EMULATOR_HOST environment variable, run:\n\n   export FIRESTORE_EMULATOR_HOST=localhost:8080\n\nDev App Server is now running.\n\n"}}

┌──────────────────────────────────────────────────────────────┐
│ ✔  All emulators ready! It is now safe to connect your apps. │
└──────────────────────────────────────────────────────────────┘

┌───────────┬────────────────┐
│ Emulator  │ Host:Port      │
├───────────┼────────────────┤
│ Firestore │ localhost:8080 │
└───────────┴────────────────┘
  Other reserved ports: 

Issues? Report them at https://github.com/firebase/firebase-tools/issues and attach the *-debug.log files.

[2020-07-13T15:28:53.466Z] Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected HTTP/2 connection.
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead\nINFO: Detected HTTP/2 connection.\n"}}
[2020-07-13T15:28:53.466Z] Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected HTTP/2 connection.
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead\nINFO: Detected HTTP/2 connection.\n"}}
[2020-07-13T15:28:53.466Z] Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected HTTP/2 connection.
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:28:53 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead\nINFO: Detected HTTP/2 connection.\n"}}
[2020-07-13T15:29:24.261Z] Jul 13, 2020 5:29:24 PM com.google.cloud.datastore.emulator.impl.util.WrappedStreamObserver onError
INFO: operation failed: transaction timeout
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:29:24 PM com.google.cloud.datastore.emulator.impl.util.WrappedStreamObserver onError\nINFO: operation failed: transaction timeout\n"}}
[2020-07-13T15:29:24.261Z] Jul 13, 2020 5:29:24 PM com.google.cloud.datastore.emulator.impl.util.WrappedStreamObserver onError
INFO: operation failed: transaction timeout
 {"metadata":{"emulator":{"name":"firestore"},"message":"Jul 13, 2020 5:29:24 PM com.google.cloud.datastore.emulator.impl.util.WrappedStreamObserver onError\nINFO: operation failed: transaction timeout\n"}}