public void CssClass(string[] cssClasses, bool apply) { ColumnBuilder builder = null; foreach (var cssClass in cssClasses) { builder = _builder.CssClass(cssClass, apply); } if (apply) { _columnConfig.CssClasses.ShouldBeEquivalentTo(cssClasses); } else { _columnConfig.CssClasses.Should().BeEmpty(); } builder.Should().BeSameAs(_builder); }