Base class for testing js/ts event listener

test-setting.ts

class TestSetting {
  protected element:HTMLElement | null;

  constructor () {
    let div = document.createElement('div');
    div.setAttribute('id', 'elementToClick');
    document.body.appendChild(div);
    this.element = document.getElementById('elementToClick');
  }

  public simulateOnClick(): void {
    if (this.element == null) {
      return;
    }

    this.element.click();
  }
}