A simple demonstration of a problem with the XLSX implementation of the
ReaderInterface defined in the box\spout composer package.
Box\Spout\Reader\XLSX calims to implement the ReaderInterface, but if you
attempt to interact with it is if it was an implementation of the interface
(open file, read row by row, close file) a BadUsageException is thrown with a
notification that additional methods (that are not defined on the interface)
should be used.
This indicates that the XLSX does not actually implement the interface,
instead it simply implements the metheods of the interface in a way that is not
compatible with the usage pattern defined by the interface.
git clone git@github.com:nCrazed/ReaderInterface-Problem.git
cd ReaderInterface-Problem
composer install
phpunit