public function testListInvoicesReturnsCorrectData()
{
$this->setMockResponse($this->client, array('invoices/listInvoices'));
$invoices = $this->client->getInvoices();
$this->assertInstanceOf('\\Mgrt\\Model\\ResultCollection', $invoices);
$this->assertEquals($invoices->count(), 1);
foreach ($invoices as $invoice) {
$this->assertInstanceOf('\\Mgrt\\Model\\Invoice', $invoice);
}
}