Javadoc
Assert that the given attribute of an entity does not take any of the disallowed values during a given period.
This method relies on
Asserts#succeedsContinually(Runnable), therefore it loops comparing the value
of the attribute to the disallowed values, rather than setting up a subscription. It may therefore miss a
situation where the attribute temporarily takes a disallowed value. This method is therefore suited for use
where the attribute will take on a value permanently, which may or may not be disallowed.