@Test
public void testGetClientWitSpecifiedRegion() {

    System.setProperty(ZTS_PROP_DYNAMODB_REGION, "test.region");
    DynamoDBClientFetcher dynamoDBClientFetcher = DynamoDBClientFetcherFactory.getDynamoDBClientFetcher();
    PrivateKeyStore keyStore = Mockito.mock(PrivateKeyStore.class);
    ZTSClientNotificationSender ztsClientNotificationSender = Mockito.mock(ZTSClientNotificationSender.class);
    AmazonDynamoDB dynamoDBClient = dynamoDBClientFetcher.getDynamoDBClient(ztsClientNotificationSender, keyStore).getAmazonDynamoDB();
    assertNotNull(dynamoDBClient);
    System.clearProperty(ZTS_PROP_DYNAMODB_REGION);
}