private ForeignKey CreateSelfRefFK()
{
var entityType = new Model().AddEntityType(typeof(SelfRef));
var pk = entityType.GetOrSetPrimaryKey(entityType.GetOrAddProperty("Id", typeof(int)));
var fkProp = entityType.GetOrAddProperty("SelfRefId", typeof(int?));
var fk = entityType.AddForeignKey(new[] { fkProp }, pk);
fk.IsUnique = true;
entityType.AddNavigation("SelfRefPrincipal", fk, pointsToPrincipal: true);
entityType.AddNavigation("SelfRefDependent", fk, pointsToPrincipal: false);
return fk;
}
