nx: Regression: Jest 26 spec tests - runner process never stops after test exception

Current Behavior

Previously - before the update that introduced Jest 26 - missing dependency were outlined within the spec tests very nicely/clearly.

But now: Post - Jest 26 update:

1. After the test fails: The process never stop running - and you now have to force kill the tests.
2. We now get these “unclear” errors. I.e. errors provided have become very opaque. Example:

[DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
(node:28824) UnhandledPromiseRejectionWarning: TypeError: Converting circular structure to JSON
    --> starting at object with constructor 'Object'
    |     property 'element' -> object with constructor 'Object'
    |     property 'componentProvider' -> object with constructor 'Object'
    --- property 'parent' closes the circle

Expected Behavior

In the versions prior to Jest 26 - the error was much, much clearer - and pointed to the exact issue at hand:

NullInjectorError: StaticInjectorError(DynamicTestModule)[HttpClient]:
      StaticInjectorError(Platform: core)[HttpClient]:
        NullInjectorError: No provider for HttpClient!

I feel this is regression as we now - have to “guess” what is missing from the tests - this leads to a much worse DX 😦

Steps to Reproduce

Create a simple service that has a simple dependency on something. Example: ensure your service has DI of: HttpClient in it.

Example:

export class NetflixService implements MovieProvider {
  constructor(private http: HttpClient) {

Inject this “new” service into your component.

Run your component spec test - without mocking out any of your dependency.

Failure Logs

(node:25892) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will termin
ate the Node.js process with a non-zero exit code.
(node:28824) UnhandledPromiseRejectionWarning: TypeError: Converting circular structure to JSON
    --> starting at object with constructor 'Object'
    |     property 'element' -> object with constructor 'Object'
    |     property 'componentProvider' -> object with constructor 'Object'
    --- property 'parent' closes the circle
    at stringify (<anonymous>)
    at writeChannelMessage (internal/child_process/serialization.js:117:20)
    at process.target._send (internal/child_process.js:779:17)
    at process.target.send (internal/child_process.js:677:19)
    at reportSuccess (C:\nrwl_10\node_modules\jest-runner\node_modules\jest-worker\build\workers\processChild.js:67:11)
(node:28824) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a
 catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI fla
g `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:28824) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will termin
ate the Node.js process with a non-zero exit code.

However - this should actually show me something like:

NullInjectorError: StaticInjectorError(DynamicTestModule)[HttpClient]:
      StaticInjectorError(Platform: core)[HttpClient]:
        NullInjectorError: No provider for HttpClient!

Environment

"dependencies": {
    "@angular/animations": "^10.1.3",
    "@angular/common": "^10.1.3",
    "@angular/compiler": "^10.1.3",
    "@angular/core": "^10.1.3",
    "@angular/forms": "^10.1.3",
    "@angular/platform-browser": "^10.1.3",
    "@angular/platform-browser-dynamic": "^10.1.3",
    "@angular/router": "^10.1.3",
    "@nrwl/angular": "10.3.1",
    "core-js": "^2.5.4",
    "rxjs": "~6.5.5",
    "tslib": "^2.0.0",
    "zone.js": "~0.10.2"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.1001.3",
    "@angular-devkit/build-ng-packagr": "~0.1001.3",
    "@angular/cli": "~10.1.3",
    "@angular/compiler-cli": "^10.1.3",
    "@angular/language-service": "^10.1.3",
    "@nrwl/cli": "10.3.1",
    "@nrwl/cypress": "10.3.1",
    "@nrwl/jest": "10.3.1",
    "@nrwl/workspace": "10.3.1",
    "@types/jest": "26.0.8",
    "@types/node": "^12.11.1",
    "codelyzer": "^5.1.2",
    "cypress": "4.12.1",
    "dotenv": "6.2.0",
    "jest": "26.2.2",
    "jest-preset-angular": "8.3.1",
    "ng-packagr": "^10.1.0",
    "prettier": "2.1.2",
    "ts-jest": "26.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~6.1.0",
    "typescript": "~4.0.3"
  }