Method _waitForEventPromise

deps/v8/test/inspector/protocol-test.js:457–469

(eventName, numOfEvents)

  };

  _waitForEventPromise(eventName, numOfEvents) {
    let events = [];
    return new Promise(fulfill => {
      this._eventHandlers.set(eventName, result => {
        --numOfEvents;
        events.push(result);
        if (numOfEvents === 0) {
          delete this._eventHandlers.delete(eventName);
          fulfill(events.length > 1 ? events : events[0]);
        }
      });
    });
  }
};

InspectorTest.runTestSuite = function(testSuite) {