public function testListInvoiceLineItems()
{
$this->client->post('invoiceitems', null, array('customer' => $this->customerId, 'amount' => 350, 'currency' => 'usd'));
$request = $this->invoices->createInvoiceRequest($this->customerId);
$invoice = $this->invoices->createInvoice($request);
$lineItemsResponse = $this->invoices->listInvoiceLineItems($invoice->getId());
$this->assertInstanceOf('Stripe\\Response\\Invoices\\ListLineItemsResponse', $lineItemsResponse);
}