Open handles

[matiasgarcia]

When using the library, I run the tests and the suite completes fine. However, I get a warning from a jest that there might be open handles.

When I run npm test -- --detectOpenHandles jest always complains about using the toReceiveMessage matcher.

Example:

  ●  Timeout

      146 |
      147 |       const promisedResponse = client.createWithdrawTicket(params);
    > 148 |       await expect(server).toReceiveMessage(JSON.stringify({ m: 0, i: 0, n: 'CreateWithdrawTicket', o: JSON.stringify({
          |                            ^
      149 |         TfaType: 'Google',
      150 |         TfaCode: TfaCode,
      151 |         Payload: JSON.stringify({

      at ../node_modules/jest-websocket-mock/lib/jest-websocket-mock.cjs.js:206:89
      at Object.toReceiveMessage (../node_modules/jest-websocket-mock/lib/jest-websocket-mock.cjs.js:206:66)
      at __EXTERNAL_MATCHER_TRAP__ (../node_modules/expect/build/index.js:386:30)
      at Object.throwingMatcher [as toReceiveMessage] (../node_modules/expect/build/index.js:387:15)
      at lib/apex/apexClient.spec.ts:148:28
      at lib/apex/apexClient.spec.ts:8:71
      at Object.<anonymous>.__awaiter (lib/apex/apexClient.spec.ts:4:12)
      at Object.<anonymous> (lib/apex/apexClient.spec.ts:131:74)
      at TestScheduler.scheduleTests (../node_modules/@jest/core/build/TestScheduler.js:333:13)
      at runJest (../node_modules/@jest/core/build/runJest.js:387:19)
      at _run10000 (../node_modules/@jest/core/build/cli/index.js:408:7)
      at runCLI (../node_modules/@jest/core/build/cli/index.js:261:3)

This is because the code internally does:

Promise.race([yourPromise, setTimeout(...)])

Is there a way to configure it to tear down the timeouts it sets?

[romgain]

Hi @matiasgarcia ! Thanks for reporting this!

Good catch, it looks we're not cleaning up that timeout... Would you be open to sending a PR for this? I think the offending code is around here: https://github.com/romgain/jest-websocket-mock/blob/master/src/matchers.ts#L51

Thanks!