public function testCloseAuthorization()
{
$client = new Client($this->configParams);
$fieldMappings = array('merchant_id' => 'SellerId', 'amazon_authorization_id' => 'AmazonAuthorizationId', 'closure_reason' => 'ClosureReason', 'mws_auth_token' => 'MWSAuthToken');
$action = 'CloseAuthorization';
$parameters = $this->setParametersAndPost($fieldMappings, $action);
$expectedParameters = $parameters['expectedParameters'];
$apiCallParams = $parameters['apiCallParams'];
$expectedStringParams = $this->callPrivateMethod($client, 'calculateSignatureAndParametersToString', $expectedParameters);
$response = $client->CloseAuthorization($apiCallParams);
$apiParametersString = $client->getParameters();
$this->assertEquals($apiParametersString, $expectedStringParams);
}