Firebase-tools: Emulador de Firestore en punto muerto en la transacción

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Información medioambiental

firebase-tools: 8.5.0
Plataforma: macOS
Nodo: 10.21.0

Caso de prueba

Al leer / escribir en un documento utilizando dos transacciones simultáneas, las transacciones se cuelgan (como si estuvieran en un punto muerto).

Agregué un código de muestra para ilustrar el problema (incluidos algunos registros de la consola para aclarar dónde se cuelga el código).

firestore-emulator-bug-showcase.zip

pasos para reproducir

Después de descargar el código de muestra, ejecute:

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

Mientras se ejecuta el emulador, ejecute el siguiente comando en una terminal diferente:

npm run test

Comportamiento esperado

Espero que todas las pruebas se ejecuten correctamente. Esto significa:

• la prueba 'firestore' se ejecuta con éxito.
• en la prueba de 'arrendamiento único' se devuelve true .
• en la prueba de 'arrendamiento múltiple', solo una de las transacciones devuelve true mientras que la otra devuelve false .

Comportamiento real

Pero en realidad la prueba de 'arrendamiento múltiple' se cuelga y se agota. Las pruebas 'firestore' y 'lease single' se ejecutan como se esperaba.

Vea el resultado a continuación:

Salida de broma:

> 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

Salida del emulador:

[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"}}