public function testSaleAndVoidWithClientTxnId()
 {
     $clientTransactionId = 10244203;
     $response = $this->checkService->sale(TestCheck::approve(), 5.0, $clientTransactionId);
     $this->assertNotNull($response, 'Response is null');
     $this->assertEquals('0', $response->responseCode);
     $this->assertEquals('Transaction Approved', $response->responseText);
     $voidResponse = $this->checkService->void(null, $clientTransactionId);
     $this->assertNotNull($voidResponse);
     $this->assertEquals('0', $voidResponse->responseCode);
 }