public void DescribeComponent_ElementName()
{
var descriptorMock = new Mock<IScriptComponentDescriptor>();
ComponentDescriber.DescribeComponent(new ExtenderWithNonDefaultValues { ElementProp = "ABC" }, descriptorMock.Object, null, null);
descriptorMock.Verify(d => d.AddElementProperty("ElementProp", It.IsAny<string>()), Times.Once);
}