/// <summary>
/// Computes the bread crumb of a <see cref="Requirement"/>
/// </summary>
/// <param name="requirement">
/// The <see cref="Requirement"/> of which the bread crumb is to be computed
/// </param>
/// <returns>
/// Requirement: R:ShortName
/// </returns>
public static string BreadCrumb(this Requirement requirement)
{
if (requirement.Container == null)
{
throw new ContainmentException("The BreadCrumb can only be computed when the container property is not null");
}
if (requirement.Group == null)
{
var requirementsSpecification = (RequirementsSpecification)requirement.Container;
return(string.Format("{0}.{1}", requirementsSpecification.BreadCrumbPart(), requirement.BreadCrumbPart()));
}
var groupBreadCrumb = requirement.Group.BreadCrumb();
return(string.Format("{0}.{1}", groupBreadCrumb, requirement.BreadCrumbPart()));
}