parseNumeric

import std.range : only, takeNone;
{
	auto reply = parseNumeric!(Numeric.RPL_REHASHING)(only("someone", "ircd.conf", "Rehashing"));
	assert(reply.get.configFile == "ircd.conf");
	assert(reply.get.message == "Rehashing");
}
{
	immutable reply = parseNumeric!(Numeric.RPL_REHASHING)(only("someone", "ircd.conf"));
	assert(reply.isNull);
}
{
	immutable reply = parseNumeric!(Numeric.RPL_REHASHING)(only("someone"));
	assert(reply.isNull);
}
{
	immutable reply = parseNumeric!(Numeric.RPL_REHASHING)(takeNone(only("")));
	assert(reply.isNull);
}