Fix meta data handling in ROOTReader and unify tests #133
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BEGINRELEASENOTES
ROOTReader
handle file switches properly for meta data reading.ENDRELEASENOTES
Fixes #132
In principle #132 is not yet completely fixed by this, because only the run, collection and event meta data are handled properly. Each file also has another metadata collection which currently is not yet updated during a file switch.
Unifying the testing code by making
read
andread-multiple
use the sameprocessEvent
function (which lead to the discovery #132). Additionally makingwrite
a template function to easily switch out different writers. This significantly reduces code duplication, increases test coverage and also (hopefully) makes maintenance a bit easier in the future.