public function testGetBuys()
{
$account = Account::reference('ACCOUNT_ID');
$expected = new ResourceCollection();
$response = $this->getMock(ResponseInterface::class);
$this->http->expects($this->any())->method('get')->with('/v2/accounts/ACCOUNT_ID/buys', ['foo' => 'bar'])->willReturn($response);
$this->mapper->expects($this->any())->method('toBuys')->with($response)->willReturn($expected);
$actual = $this->client->getAccountBuys($account, ['foo' => 'bar']);
$this->assertSame($expected, $actual);
}