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Using a list comprehension to cover
SUPPORTED_TEXT_PLAIN_SHOW_MIME_TYPES
ensures it gets covered by tests.It is not entirely clear why this line does not get measured as covered by tests when the
filter
approach is used. The expectation is that this has to do with the fact that thefilter
approach results in an iterator being assigned toSUPPORTED_TEXT_PLAIN_SHOW_MIME_TYPES
resulting in aSet
, whereas the list comprehension assigns aSet
constructed from a Vector`. This is pure speculation, trying to materialize the iterator approach first does not result in the line
being covered either.