From XEP-0060 § 6.1.6:
+ *+ * If multiple subscriptions for the same JID are allowed, the service MUST + * use the 'subid' attribute to differentiate between subscriptions for the + * same entity (therefore the SubID MUST be unique for each node+JID + * combination and the SubID MUST be present on the <subscription/> + * element any time it is sent to the subscriber). + *+ * + * @throws NoResponseException if there was no response from the remote entity. + * @throws XMPPErrorException if there was an XMPP error returned. + * @throws NotConnectedException if the XMPP connection is not connected. + * @throws InterruptedException if the calling thread was interrupted. + * @throws PubSubException.NotAPubSubNodeException if the node cannot be accessed. + * @throws TestNotPossibleException if the server does not support the functionality required for this test. + */ + @SmackIntegrationTest + public void subscribeMultipleSubscriptionsTest() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, PubSubException.NotAPubSubNodeException, TestNotPossibleException + { + if ( !pubSubManagerOne.getSupportedFeatures().containsFeature( PubSubFeature.multi_subscribe ) ) { + throw new TestNotPossibleException( "Feature 'multi-subscribe' not supported on the server." ); + } + + final String nodename = "sinttest-multisubscribe-nodename-" + testRunId; + pubSubManagerOne.createNode( nodename ); + + try { + // Subscribe to the node twice, using different configuration + final Node subscriberNode = pubSubManagerTwo.getNode(nodename); + final EntityBareJid subscriber = conTwo.getUser().asEntityBareJid(); + final SubscribeForm formA = new SubscribeForm( DataForm.Type.submit ); + formA.setDigestFrequency( 1 ); + final SubscribeForm formB = new SubscribeForm( DataForm.Type.submit ); + formB.setDigestFrequency( 2 ); + + final Subscription subscriptionA = subscriberNode.subscribe( subscriber, formA ); + final Subscription subscriptionB = subscriberNode.subscribe( subscriber, formB ); + + assertNotNull( subscriptionA.getId() ); + assertNotNull( subscriptionB.getId() ); + assertNotEquals( subscriptionA.getId(), subscriptionB.getId() ); + } + finally { + pubSubManagerOne.deleteNode( nodename ); + } + } + + /** + * Asserts that the server returns non-null, unique subscription IDs when + * subscribing twice to the same node (with different options). + * + *
From XEP-0060 § 6.1.6:
+ *+ * If the service does not allow multiple subscriptions for the same entity + * and it receives an additional subscription request, the service MUST + * return the current subscription state (as if the subscription was just + * approved). + *+ * + * @throws NoResponseException if there was no response from the remote entity. + * @throws XMPPErrorException if there was an XMPP error returned. + * @throws NotConnectedException if the XMPP connection is not connected. + * @throws InterruptedException if the calling thread was interrupted. + * @throws PubSubException.NotAPubSubNodeException if the node cannot be accessed. + * @throws TestNotPossibleException if the server does not support the functionality required for this test. + */ + @SmackIntegrationTest + public void subscribeMultipleSubscriptionNotSupportedTest() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, PubSubException.NotAPubSubNodeException, TestNotPossibleException + { + if ( pubSubManagerOne.getSupportedFeatures().containsFeature( PubSubFeature.multi_subscribe ) ) { + throw new TestNotPossibleException( "Feature 'multi-subscribe' allowed on the server (this test verifies behavior for when it's not)." ); + } + + final String nodename = "sinttest-multisubscribe-nodename-" + testRunId; + pubSubManagerOne.createNode( nodename ); + + try { + // Subscribe to the node twice, using different configuration + final Node subscriberNode = pubSubManagerTwo.getNode(nodename); + final EntityBareJid subscriber = conTwo.getUser().asEntityBareJid(); + final SubscribeForm formA = new SubscribeForm( DataForm.Type.submit ); + formA.setDigestFrequency( 1 ); + final SubscribeForm formB = new SubscribeForm( DataForm.Type.submit ); + formB.setDigestFrequency( 2 ); + + final Subscription subscriptionA = subscriberNode.subscribe( subscriber, formA ); + final Subscription subscriptionB = subscriberNode.subscribe( subscriber, formB ); + + // A poor-man's "equal" + final String normalizedRepresentationA = subscriptionA.toXML( XmlEnvironment.EMPTY ).toString(); + final String normalizedRepresentationB = subscriptionB.toXML( XmlEnvironment.EMPTY ).toString(); + assertEquals( normalizedRepresentationA, normalizedRepresentationB ); + } + finally { + pubSubManagerOne.deleteNode( nodename ); + } + } + /** * Asserts that an empty subscriptions collection is returned when an entity * requests its subscriptions from a node that it is not subscribed to.