Test centre: add IsParent, IsChild, IsAncestor and IsDescendant sub-types for assertion type "Inspect Dimension Element"
Is your feature request related to a problem? Please describe.
The available assertions for assertion type "Inspect Dimension Element" are missing the most important tests for unit testing a hierarchy. Namely does a parent/child or ancestor/descendant relationship exist in this hierarchy between member A and Member B?
Describe the solution you'd like
While parent counts and child counts are testable a direct test of an IsChild or IsParent condition using the ElementIsParent function would be much more useful as parent and child counts are subject to change over time in many hierarchies. Whereas a test of whether one member is a parent of another is much more immutable and I think therefore better for more use cases for unit tests of hierarchy structure.