The InfluxDB timestamp is the UNIX epoch in nanoseconds, which is a very large number. On some platforms, this number is being represented by Perl as an exponent (1.0e4 instead of 10000). This makes the test fail (and probably would be failed by InfluxDB).
We must make sure this is always expressed as an integer. We could use Perl's BigInt library, or we could treat it as a string instead (s/\.//g).
CPAN Testers failure reports: http://www.cpantesters.org/cpan/report/14dc9bc2-8aec-11e7-843e-d0493fa01dbe http://www.cpantesters.org/cpan/report/1f1659ac-6bf4-1014-99be-e580e4051ff0