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Slow Tests

See original GitHub issue

I’m submitting this issue because I believe there to be a problem with the test suite that is really hindering the contributor developer experience, plus there could be a more serious underlying problem that could be causing this.

I don’t believe the specs on my machine to be amazing but nor do I believe them to be low end and I have run test suites, including integrations, of similar size before with no problem.

I’m using the provided docker-compose file in the docker dir. - This is using about 2GB of ram.

When running the tests in the client dir for example:

$ cd ./packages/client && pnpm run test

I first get a bunch of successful tests and then a warning stating that something has not been awaited:

 PASS  src/__tests__/integration/errors/referentialActions-onDelete-default-foreign-key-error-postgresql/test.ts
 PASS  src/__tests__/integration/happy/client-engine/test.ts (26.568 s)
 PASS  src/__tests__/integration/happy/blog-env-cockroachdb/test.ts
 PASS  src/__tests__/integration/errors/can-not-connect-to-database/test.ts (10.924 s)
 PASS  src/__tests__/integration/errors/int-errors/test.ts
 PASS  src/__tests__/integration/happy/blog/test.ts
 PASS  src/__tests__/integration/errors/referentialActions-onDelete-default-foreign-key-error-sqlite/test.ts
 PASS  src/__tests__/integration/happy/blog-dot-env-both/test.ts
 PASS  src/__tests__/integration/errors/corruption/test.ts
 PASS  src/__tests__/integration/happy/blog-dot-env-root/test.ts
 PASS  src/__tests__/integration/errors/missing-engine-native-binaryTarget/library.test.ts
 PASS  src/__tests__/integration/errors/executeRaw-alter-postgres/test.ts
 PASS  src/__tests__/integration/happy/blog-dot-env-both-conflict/test.ts
 PASS  src/__tests__/integration/happy/blog-dot-env-prisma/test.ts
 PASS  src/__tests__/integration/happy/binary/test.ts
 PASS  src/__tests__/integration/happy/createMany-postgresql/test.ts
 PASS  src/__tests__/integration/happy/custom-engine-binary/test.ts
 PASS  src/__tests__/integration/errors/wrong-native-types-postgres/test.ts
 PASS  src/__tests__/integration/errors/missing-engine/library.test.ts
 PASS  src/__tests__/integration/happy/createMany-mysql/test.ts
 PASS  src/__tests__/integration/happy/browser/test.ts
 PASS  src/__tests__/integration/happy/chaining/test.ts
 PASS  src/__tests__/integration/errors/invalid-url/test.ts
 PASS  src/__tests__/integration/errors/incorrect-column-type/test.ts
 PASS  src/__tests__/integration/errors/wrong-native-types-mysql/test.ts
 PASS  src/__tests__/integration/errors/source-map-support/test.ts
 PASS  src/__tests__/integration/errors/client-version-error/test.ts
 PASS  src/__tests__/deepSome.test.ts
 PASS  src/__tests__/integration/errors/union-validation/test.ts
 PASS  src/__tests__/binaryEngine.test.ts
 PASS  src/__tests__/integration/errors/error-link/test.ts
 PASS  src/__tests__/integration/happy/batch-findUnique/test.ts
 PASS  src/__tests__/integration/errors/uncheckedScalarValidation/test.ts
 PASS  src/__tests__/integration/errors/object-transaction/test.ts
 PASS  src/__tests__/integration/happy/count/test.ts
 PASS  src/__tests__/atLeastOne.test.ts
 PASS  src/__tests__/validatePrismaClientOptions.test.ts
 PASS  src/__tests__/deepAndOr.test.ts
 PASS  src/__tests__/dateWhere.test.ts
 PASS  src/__tests__/dmmfTypes.test.ts
 PASS  src/__tests__/buildNFTAnnotations.test.ts
 PASS  src/__tests__/integration/errors/missing-engine-native-binaryTarget/binary.test.ts
 PASS  src/__tests__/batching.test.ts
 PASS  src/__tests__/dmmf.test.ts
 PASS  src/__tests__/integration/happy/blog-update/test.ts
 PASS  src/__tests__/integration/errors/missing-table/test.ts
 PASS  src/__tests__/integration/errors/invalid-input/test.ts
 PASS  src/__tests__/select.test.ts
 PASS  src/__tests__/minimalWhereTransformation.test.ts
 PASS  src/__tests__/integration/errors/color-format/test.ts
 PASS  src/__tests__/integration/errors/too-many-instances-of-prisma-client/test.ts
 PASS  src/__tests__/integration/happy/aggregations/test.ts
 PASS  src/__tests__/integration/happy/blog-env/test.ts
 PASS  src/__tests__/relationWhereTransformation.test.ts
 PASS  src/__tests__/integration/happy/disconnect-finally/test.ts
 PASS  src/__tests__/integration/errors/missing-engine/binary.test.ts
 PASS  src/__tests__/integration/errors/raw-transaction/test.ts
 PASS  src/__tests__/integration/errors/missing-column/test.ts
 PASS  src/__tests__/unpack.test.ts
 PASS  src/__tests__/integration/happy/atomic-operations/test.ts
 PASS  src/__tests__/orderTransformation.test.ts
 PASS  src/__tests__/integration/errors/missing-relation/test.ts
 PASS  src/__tests__/or.test.ts
 PASS  src/__tests__/noArgs.test.ts
 PASS  src/__tests__/singularRelationWhereTransformation.test.ts
 PASS  src/__tests__/atomicOperationsUpdate.test.ts
 PASS  src/__tests__/deepQuery.test.ts
 PASS  src/__tests__/relationWhereORNotNullTransformation.test.ts
 PASS  src/__tests__/update.test.ts
 PASS  src/__tests__/undefined-vs-null.test.ts
 PASS  src/__tests__/optionalRelation.test.ts
 PASS  src/__tests__/include.test.ts
 PASS  src/__tests__/scalarWhereTransformation.test.ts
 PASS  src/__tests__/uuid.test.ts
 PASS  src/__tests__/extractSqliteSources.test.ts
 PASS  src/__tests__/scripts/postinstall.test.ts
 PASS  src/__tests__/scalarListCreate.test.ts
 PASS  src/__tests__/deepGet.test.ts
 PASS  src/__tests__/serializeRawParameters.test.ts

  ●  Cannot log after tests are done. Did you forget to wait for something async in your test?
    Attempted to log "warning In order to use "@prisma/client", please install Prisma CLI. You can install it with "npm add -D prisma".".

      93 |
      94 |   if (!localPath && !installedGlobally) {
    > 95 |     console.error(
         |             ^
      96 |       `${c.yellow(
      97 |         'warning',
      98 |       )} In order to use "@prisma/client", please install Prisma CLI. You can install it with "npm add -D prisma".`,

      at console.error (../../node_modules/.pnpm/@jest+console@27.5.1/node_modules/@jest/console/build/BufferedConsole.js:163:10)
      at main (scripts/postinstall.js:95:13)

Shortly after this, I’m getting a few more passing tests then an error stating that there is many instances of Prisma client constructed:

PASS  src/__tests__/aggregate.test.ts
 PASS  src/__tests__/resolveDatasources.test.ts
 PASS  src/__tests__/document.test.ts
 PASS  src/__tests__/mergeBy.test.ts
 PASS  src/__tests__/getLogLevel.test.ts
 PASS  src/__tests__/integration/happy/async-hooks/test.ts
 PASS  src/__tests__/integration/happy/signals/test.ts
 PASS  src/__tests__/integration/happy/logging/library.ts
 PASS  src/__tests__/integration/happy/sqlite-variable-limit/test.ts (6.585 s)
 PASS  src/__tests__/integration/happy/logging/binary.ts
 PASS  src/__tests__/integration/happy/referentialActions-onDelete-cascade-mysql/test.ts
 PASS  src/__tests__/integration/happy/referentialActions-onDelete-cascade-postgresql/test.ts
 PASS  src/__tests__/integration/happy/json-filtering-postgres/test.ts
 PASS  src/__tests__/integration/happy/native-types-mysql/test.ts
 PASS  src/__tests__/integration/happy/interactive-transactions-postgres/test.ts (23.57 s)
  ● Console

    console.warn
      warn(prisma-client) There are already 10 instances of Prisma Client actively running.

      81 |       const runningEngines = engines.filter((e) => e.engine);
      82 |       if (runningEngines.length === 10) {
    > 83 |         console.warn(`${import_chalk.default.yellow("warn(prisma-client)")} There are already 10 instances of Prisma Client actively running.`);
         |                 ^
      84 |       }
      85 |     }
      86 |   }

      at LibraryEngine.checkForTooManyEngines (../engine-core/dist/library/LibraryEngine.js:83:17)
      at new LibraryEngine (../engine-core/dist/library/LibraryEngine.js:77:10)
      at PrismaClient.getEngine (src/runtime/getPrismaClient.ts:454:47)
      at new PrismaClient (src/runtime/getPrismaClient.ts:425:29)
      at Object.<anonymous> (src/__tests__/integration/happy/interactive-transactions-postgres/test.ts:658:12)

 PASS  src/__tests__/integration/happy/native-types-postgres/test.ts (19.823 s)
 PASS  src/__tests__/integration/happy/json-filtering-mysql/test.ts (27.959 s)
 PASS  src/__tests__/types/types.test.ts (426.401 s)
 FAIL  src/__tests__/integration/happy/composites-mongo/upsert/required/create.ts (473.354 s)
  ● upsert > required > create › set

    thrown: "Exceeded timeout of 90000 ms for a hook.
    Use jest.setTimeout(newTimeout) to increase the timeout value, if this is a long-running test."

      18 |   })

It’s at this point when the tests completely stop my machine(100%cpu, 100%ram) and hang for a unknown amount of time sometimes > 1 hour.

I can’t trust the location of the warnings because of the way jest is rendering the console logs, and so it’s really unknown where this error is happening.

I have tried running the tests with --maxWorkers=50% to no avail: