get_invoiceitems() not passing customer id

[sherrardb]

stripe-perl/lib/Net/Stripe.pm

Lines 1646 to 1661 in 079e182

	method get_invoiceitems(HashRef :$created?,
	Net::Stripe::Customer|Str :$customer?,
	Str :$ending_before?,
	Int :$limit?,
	Str :$starting_after?) {
	if (ref($customer)) {
	$customer = $customer->id;
	}
	$self->_get_collections('invoiceitems',
	created => $created,
	ending_before => $ending_before,
	limit => $limit,
	starting_after => $starting_after
	);
	}
	}

GET https://api.stripe.com/v1/invoiceitems?limit=1

unfortunately the current unit test passes because

• there is only one invoice in the system at that point, and we delete in the next unit test.
• we are passing limit=1

[sherrardb]

the following helps highlight the problem

{
        my $customer = $stripe->post_customer(
            card => $token_id_visa,
            plan => $plan->id,
        );
        my $item = $stripe->create_invoiceitem(
            customer => $customer->id,
            amount   => 700,
            currency => 'usd',
            description => 'Pickles',
        );
}
        my $items = $stripe->get_invoiceitems(
            customer => $customer->id,
            limit => 1,
        );