Do not try to cast array into string in tests.
Do not try to cast array into string in tests.

This is really just to make tests pass on PHP 5.4, but does it make sense
in practice anyway? Simply casting an array to string is useless because
it emits "Array", so unless we do something more complex in userland code
there is no point in doing so.

orientechnologies/orientdb-php-odm,Krienas/orientdb-php-odm,ruleant/orientdb-odm,doctrine/orientdb-odm,Krienas/orientdb-php-odm,ruleant/orientdb-odm,orientechnologies/orientdb-php-odm,doctrine/orientdb-odm