Function _runTest

packages/zone.js/test/test-util.ts:54–67

(test: any, block: Function, otherwise?: Function, done?: Function)

}

function _runTest(test: any, block: Function, otherwise?: Function, done?: Function) {
  const message = test.message || test.name || test;
  if (typeof test === 'string' ? !!global[test] : test()) {
    if (done) {
      block(done);
    } else {
      block();
    }
  } else {
    console.log('WARNING: skipping ' + message + ' tests (missing this API)');
    otherwise?.();
    done?.();
  }
}

export function supportPatchXHROnProperty() {
  let desc = Object.getOwnPropertyDescriptor(XMLHttpRequest.prototype, 'onload');