public void GetErrorMessage()
{
var webElement = MockRepository.GenerateStub<IWebElement>();
webElement.Stub(x => x.TagName).Return("input");
var element = new ElementForTest(webElement);
var attribute = new NotInputAttribute();
attribute.GetErrorMessage(element).Should().Be("Expected tag not in set of input, textarea, select, button, option. But was 'input'.");
}