# Validity VUER

This [test](.) is exercising the validity rule [VUER](../../vuer/Readme.md).

### Description

In this test, in class `BB` there is a separate call to the function `f` from class `CC`. The type `DD [G]` of the result of `f` is expanded, but it contains an attribute `name` whose type `detachable G`. The actual generic type may be a non-separate reference type (`STRING` in this test). This violates `VUER`.

### Notes

* ISE Eiffel (as of 23.09.10.7341 and after) fails to report this validity rule violation, resulting in a type issue where a `STRING` from another SCOOP region is not flagged as separate.

* Gobo Eiffel reports a validity error `V1EA-1G` instead. This is because the issue of having non-separate reference attributes in expanded classes is more general than just this particular case.
