public void CanShowAndHideDropdownComponent() { var appElement = MountTestComponent <DropdownComponent>(); var drpElement = appElement.FindElement(By.ClassName("dropdown")); var btnElement = drpElement.FindElement(By.TagName("button")); var mnuElement = drpElement.FindElement(By.ClassName("dropdown-menu")); btnElement.Click(); WaitAssert.Contains("show", () => drpElement.GetAttribute("class")); WaitAssert.Contains("show", () => mnuElement.GetAttribute("class")); btnElement.Click(); WaitAssert.NotContains("show", () => drpElement.GetAttribute("class")); WaitAssert.NotContains("show", () => mnuElement.GetAttribute("class")); }