Function wrapTestInZone

packages/zone.js/lib/jasmine/jasmine.ts:211–225

* Gets a function wrapping the body of a Jasmine `it/beforeEach/afterEach` block to * execute in a ProxyZone zone. * This will run in `testProxyZone`. The `testProxyZone` will be reset by the `ZoneQueueRunner`

(testBody: Function)

     * This will run in `testProxyZone`. The `testProxyZone` will be reset by the `ZoneQueueRunner`
     */
    function wrapTestInZone(testBody: Function): Function {
      // The `done` callback is only passed through if the function expects at least one argument.
      // Note we have to make a function with correct number of arguments, otherwise jasmine will
      // think that all functions are sync or async.
      return (
        testBody &&
        (testBody.length
          ? function (this: QueueRunnerUserContext, done: Function) {
              return runInTestZone(testBody, this, this.queueRunner!, done);
            }
          : function (this: QueueRunnerUserContext) {
              return runInTestZone(testBody, this, this.queueRunner!);
            })
      );
    }
    interface QueueRunner {
      execute(): void;
      testProxyZoneSpec: ZoneSpec | null;