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/*
 * Copyright (c) 2010 Remko Tronçon
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#include <cppunit/extensions/HelperMacros.h>
#include <cppunit/extensions/TestFactoryRegistry.h>
#include <vector>
#include <boost/bind.hpp>

#include <Swiften/Presence/PayloadAddingPresenceSender.h>
#include <Swiften/Presence/StanzaChannelPresenceSender.h>
#include <Swiften/Elements/Body.h>
#include <Swiften/Client/DummyStanzaChannel.h>

using namespace Swift;

class PayloadAddingPresenceSenderTest : public CppUnit::TestFixture {
		CPPUNIT_TEST_SUITE(PayloadAddingPresenceSenderTest);
		CPPUNIT_TEST(testSetPayloadAddsPayloadOnPresenceSend);
		CPPUNIT_TEST(testSetNullPayloadDoesNotAddPayloadOnPresenceSend);
		CPPUNIT_TEST(testSendPresenceDoesNotAlterOriginalPayload);
		CPPUNIT_TEST(testSetPayloadAfterInitialPresenceResendsPresence);
		CPPUNIT_TEST(testSetPayloadAfterUnavailablePresenceDoesNotResendPresence);
		CPPUNIT_TEST(testSendDirectedPresenceIsNotResent);
		CPPUNIT_TEST_SUITE_END();

	public:
		void setUp() {
			stanzaChannel = new DummyStanzaChannel();
			presenceSender = new StanzaChannelPresenceSender(stanzaChannel);
		}

		void tearDown() {
			delete presenceSender;
			delete stanzaChannel;
		}

		void testSetPayloadAddsPayloadOnPresenceSend() {
			std::auto_ptr<PayloadAddingPresenceSender> testling(createSender());

			testling->setPayload(MyPayload::create("foo"));
			testling->sendPresence(Presence::create("bar"));

			CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(stanzaChannel->sentStanzas.size()));
			CPPUNIT_ASSERT_EQUAL(std::string("bar"), stanzaChannel->getStanzaAtIndex<Presence>(0)->getStatus());
			CPPUNIT_ASSERT(stanzaChannel->getStanzaAtIndex<Presence>(0)->getPayload<MyPayload>());
		}

		void testSetNullPayloadDoesNotAddPayloadOnPresenceSend() {
			std::auto_ptr<PayloadAddingPresenceSender> testling(createSender());

			testling->setPayload(MyPayload::ref());
			testling->sendPresence(Presence::create("bar"));

			CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(stanzaChannel->sentStanzas.size()));
			CPPUNIT_ASSERT_EQUAL(std::string("bar"), stanzaChannel->getStanzaAtIndex<Presence>(0)->getStatus());
			CPPUNIT_ASSERT(!stanzaChannel->getStanzaAtIndex<Presence>(0)->getPayload<MyPayload>());
		}

		void testSendPresenceDoesNotAlterOriginalPayload() {
			std::auto_ptr<PayloadAddingPresenceSender> testling(createSender());

			testling->setPayload(MyPayload::create("foo"));
			Presence::ref presence(Presence::create("bar"));
			testling->sendPresence(presence);

			CPPUNIT_ASSERT(!presence->getPayload<MyPayload>());
		}

		void testSetPayloadAfterInitialPresenceResendsPresence() {
			std::auto_ptr<PayloadAddingPresenceSender> testling(createSender());

			testling->sendPresence(Presence::create("bar"));
			testling->setPayload(MyPayload::create("foo"));

			CPPUNIT_ASSERT_EQUAL(2, static_cast<int>(stanzaChannel->sentStanzas.size()));
			CPPUNIT_ASSERT_EQUAL(std::string("bar"), stanzaChannel->getStanzaAtIndex<Presence>(1)->getStatus());
			CPPUNIT_ASSERT(stanzaChannel->getStanzaAtIndex<Presence>(1)->getPayload<MyPayload>());
		}

		void testSetPayloadAfterUnavailablePresenceDoesNotResendPresence() {
			std::auto_ptr<PayloadAddingPresenceSender> testling(createSender());

			Presence::ref presence = Presence::create("bar");
			presence->setType(Presence::Unavailable);
			testling->sendPresence(presence);

			testling->setPayload(MyPayload::create("foo"));

			CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(stanzaChannel->sentStanzas.size()));
		}

		void testSendDirectedPresenceIsNotResent() {
			std::auto_ptr<PayloadAddingPresenceSender> testling(createSender());

			testling->sendPresence(Presence::create("bar"));
			Presence::ref directedPresence = Presence::create("baz");
			directedPresence->setTo(JID("foo@bar.com"));
			testling->sendPresence(directedPresence);
			testling->setPayload(MyPayload::create("foo"));

			CPPUNIT_ASSERT_EQUAL(3, static_cast<int>(stanzaChannel->sentStanzas.size()));
			CPPUNIT_ASSERT_EQUAL(std::string("bar"), stanzaChannel->getStanzaAtIndex<Presence>(2)->getStatus());
		}

	private:
		std::auto_ptr<PayloadAddingPresenceSender> createSender() {
			std::auto_ptr<PayloadAddingPresenceSender> sender(new PayloadAddingPresenceSender(presenceSender));
			return sender;
		}

		struct MyPayload : public Payload {
				typedef boost::shared_ptr<MyPayload> ref;

				MyPayload(const std::string& body) : body(body) {}

				static ref create(const std::string& body) {
					return ref(new MyPayload(body));
				}

				std::string body;
		};

	private:
		DummyStanzaChannel* stanzaChannel;
		StanzaChannelPresenceSender* presenceSender;
};

CPPUNIT_TEST_SUITE_REGISTRATION(PayloadAddingPresenceSenderTest);