private string GetText(IClass clazz)
{
var subjectAttribute = clazz.DescendantsAndSelf(x => x.GetContainingType() as IClass)
.Select(x => x.GetAttributeData(MSpecUtility.SubjectAttributeFullName)).WhereNotNull().First();
var subjectTypes = subjectAttribute.PositionParameters().Select(x => x.TypeValue).WhereNotNull();
var subjectText = subjectAttribute.PositionParameters().Select(x => x.ConstantValue.Value as string).WhereNotNull().FirstOrDefault();
return(MSpecUtility.CreateText(clazz.ToCommon(), subjectTypes.SingleOrDefault()?.ToCommon(), subjectText));
}