public void CheckBoxListFor_Null()
{
var model = new Model1()
{
PropIntList = null
};
var helper = new HtmlTagHelper <Model1>(model);
var propExpression = Expr((Model1 m) => m.PropIntList);
var tag = helper.CheckBoxListFor(
propExpression,
OptionsList.CreateForEnum <Enum1>());
Assert.Equal(3, tag.Children.Count());
CheckBoxListTagTest.AssertValidOption(tag.Options.Skip(0).First(), name: "PropIntList", display: "Option1", value: 1, isChecked: false);
CheckBoxListTagTest.AssertValidOption(tag.Options.Skip(1).First(), name: "PropIntList", display: "Option2", value: 2, isChecked: false);
CheckBoxListTagTest.AssertValidOption(tag.Options.Skip(2).First(), name: "PropIntList", display: "Option3", value: 3, isChecked: false);
}