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authorRemko Tronçon <git@el-tramo.be>2012-04-23 13:32:24 (GMT)
committerRemko Tronçon <git@el-tramo.be>2012-04-23 13:57:24 (GMT)
commit18f4f0ba13bbfe901dae44e95d869ba0425e93c7 (patch)
tree51de477a7f2dc9aba3177e6ea50ed90dbff91f85 /Swiften/Network/UnitTest
parent2f64443e7a3e427a3a38665b5aafb77c9b128cc0 (diff)
downloadswift-contrib-18f4f0ba13bbfe901dae44e95d869ba0425e93c7.zip
swift-contrib-18f4f0ba13bbfe901dae44e95d869ba0425e93c7.tar.bz2
Select SRV randomly, taking weight into account.
Resolves: #1030
Diffstat (limited to 'Swiften/Network/UnitTest')
-rw-r--r--Swiften/Network/UnitTest/DomainNameServiceQueryTest.cpp82
1 files changed, 82 insertions, 0 deletions
diff --git a/Swiften/Network/UnitTest/DomainNameServiceQueryTest.cpp b/Swiften/Network/UnitTest/DomainNameServiceQueryTest.cpp
new file mode 100644
index 0000000..aefd815
--- /dev/null
+++ b/Swiften/Network/UnitTest/DomainNameServiceQueryTest.cpp
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2012 Remko Tronçon
+ * Licensed under the GNU General Public License v3.
+ * See Documentation/Licenses/GPLv3.txt for more information.
+ */
+
+#include <QA/Checker/IO.h>
+
+#include <cppunit/extensions/HelperMacros.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+
+#include <Swiften/Network/DomainNameServiceQuery.h>
+#include <Swiften/Base/RandomGenerator.h>
+
+using namespace Swift;
+
+namespace {
+ struct RandomGenerator1 : public RandomGenerator {
+ virtual int generateWeighedRandomNumber(std::vector<double>::const_iterator, std::vector<double>::const_iterator) {
+ return 0;
+ }
+ };
+
+ struct RandomGenerator2 : public RandomGenerator {
+ virtual int generateWeighedRandomNumber(std::vector<double>::const_iterator probabilities_begin, std::vector<double>::const_iterator probabilities_end) {
+ return std::max_element(probabilities_begin, probabilities_end) - probabilities_begin;
+ }
+ };
+}
+
+class DomainNameServiceQueryTest : public CppUnit::TestFixture {
+ CPPUNIT_TEST_SUITE(DomainNameServiceQueryTest);
+ CPPUNIT_TEST(testSortResults_Random1);
+ CPPUNIT_TEST(testSortResults_Random2);
+ CPPUNIT_TEST_SUITE_END();
+
+ public:
+ void testSortResults_Random1() {
+ std::vector<DomainNameServiceQuery::Result> results;
+ results.push_back(DomainNameServiceQuery::Result("server1.com", 5222, 5, 1));
+ results.push_back(DomainNameServiceQuery::Result("server2.com", 5222, 3, 10));
+ results.push_back(DomainNameServiceQuery::Result("server3.com", 5222, 6, 1));
+ results.push_back(DomainNameServiceQuery::Result("server4.com", 5222, 3, 20));
+ results.push_back(DomainNameServiceQuery::Result("server5.com", 5222, 2, 1));
+ results.push_back(DomainNameServiceQuery::Result("server6.com", 5222, 3, 10));
+
+ RandomGenerator1 generator;
+ DomainNameServiceQuery::sortResults(results, generator);
+
+ CPPUNIT_ASSERT_EQUAL(std::string("server5.com"), results[0].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server2.com"), results[1].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server4.com"), results[2].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server6.com"), results[3].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server1.com"), results[4].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server3.com"), results[5].hostname);
+ }
+
+ void testSortResults_Random2() {
+ std::vector<DomainNameServiceQuery::Result> results;
+ results.push_back(DomainNameServiceQuery::Result("server1.com", 5222, 5, 1));
+ results.push_back(DomainNameServiceQuery::Result("server2.com", 5222, 3, 10));
+ results.push_back(DomainNameServiceQuery::Result("server3.com", 5222, 6, 1));
+ results.push_back(DomainNameServiceQuery::Result("server4.com", 5222, 3, 20));
+ results.push_back(DomainNameServiceQuery::Result("server5.com", 5222, 2, 1));
+ results.push_back(DomainNameServiceQuery::Result("server6.com", 5222, 3, 10));
+ results.push_back(DomainNameServiceQuery::Result("server7.com", 5222, 3, 40));
+
+ RandomGenerator2 generator;
+ DomainNameServiceQuery::sortResults(results, generator);
+
+ CPPUNIT_ASSERT_EQUAL(std::string("server5.com"), results[0].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server7.com"), results[1].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server4.com"), results[2].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server6.com"), results[3].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server2.com"), results[4].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server1.com"), results[5].hostname);
+ CPPUNIT_ASSERT_EQUAL(std::string("server3.com"), results[6].hostname);
+ }
+};
+
+
+CPPUNIT_TEST_SUITE_REGISTRATION(DomainNameServiceQueryTest);