public void ShouldConstructWithEmpty()
{
//arrange
var ClassToRender = CssBuilder.Empty().NullIfEmpty();
//assert
ClassToRender.Should().BeNull();
}
public IEnumerable <string> BuildCssClasses()
{
return(CssBuilder.Empty()
.AddClasses(BuildSideCssClasses(AdditiveSides), IsValidCssClass)
.AddClasses(BuildSideCssClasses(SubtractiveSides, "0"), IsValidCssClass)
.AddColor(CSS_CLASS_PREFIX, () => Color, () => Color != Color.Muted && Color != Color.None)
.Build()
.Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries));
}