Hello Julia Devs,
When dealing with packages which overload the behavior of
== it is best to make sure tests use
=== when appropriate.
In DataArrays package,
== can return NA which later caused an error in some tests. But the general pattern should be:
@test f(blah,blag,blag) == false
@test f(blah,blah,blah) === false
Perhaps this has applicability to other packages (especially those which rely on Nullable stuff - which sometimes feels like it generates more than a 100% of problems ).