Ensure source() != source()
and clean up some tests
#1003
Merged
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At present
source() == source()
, which means sources unbound to data in learning networks cannot be distinguished using==
, which we view as a bug. This PR fixes this.We also move the definition of the private method
MLJBase.children
out to tests, since it is not used for any other purpose.Moreover, we tweak its definition so that it does not depend on the overloading ofBase.in
currently in MLJModelInterface, which we would ultimately like to remove. See this discussion.The following local tests of downstream packages
(with the overloading in MLJModelInterface removed)pass: