test
'test' ['d'|'v'|'n'|'e'|'p'|'l'|'c'|'s'|'b'|->
'S'|'L'|'se'|'sh' <entity-name>]
['i' <set1> <set2>]
['o' <set>|<node>]
A boolean opperation. Usually tests the existence of a given entity (watch the '\
' which prevents the value beeing replaced by its content!):
test v \
value
And it checks if at least one node included in set1 is inside the elements included in set2:
test i nodeset elemset
Or it tests the observability 'o' of a certain node under the given orientation of the model. The node can be given as a member of a set or directly by its node-nr. The command returns TRUE or FALSE and writes it to the ”stack”.