Function createFakeEvent

src/cdk/testing/testbed/fake-events/event-objects.ts:157–159

(type: string, bubbles = false, cancelable = true, composed = true)

 * @docs-private
 */
export function createFakeEvent(type: string, bubbles = false, cancelable = true, composed = true) {
  return new Event(type, {bubbles, cancelable, composed});
}

/**
 * Defines a readonly property on the given event object. Readonly properties on an event object