streaming: emit response when stream received metadata event failed

[flaky-bot[bot]]

Note: #1403 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky.

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commit: 064e131ba7371e6d994e3d73790fa5e1fd09189a buildURL: Build Status, Sponge status: failed

Test output

Expected values to be strictly deep-equal:
+ actual - expected
{
code: 200,
details: '',
message: 'OK',

• metadata: {

• metadata: true
  

• } }

  + expected - actual
  
   {
     "code": 200
     "details": ""
     "message": "OK"
  +  "metadata": {
  +    "metadata": true
  +  }
   }
  

/workspace/test/unit/streaming.ts:363 assert.deepStrictEqual(receivedResponse, expectedResponse); ^

AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal:

• actual - expected

  { code: 200, details: '', message: 'OK',

• metadata: {

• metadata: true
  

• } } at null.check (test/unit/streaming.ts:363:16) at StreamProxy. (test/unit/streaming.ts:377:7) at Immediate._onImmediate (test/unit/streaming.ts:334:11) at processImmediate (internal/timers.js:464:21)

[flaky-bot[bot]]

Looks like this issue is flaky. :worried:

I'm going to leave this open and stop commenting.

A human should fix and close this.

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When run at the same commit (064e131ba7371e6d994e3d73790fa5e1fd09189a), this test passed in one build (Build Status, Sponge) and failed in another build (Build Status, Sponge).