security: Add CertificateCache

Change-Id: If7008877e9956c4e8964c99feac7ba34685106d7
Refs: #3317
diff --git a/tests/unit-tests/security/v2/certificate-cache.t.cpp b/tests/unit-tests/security/v2/certificate-cache.t.cpp
new file mode 100644
index 0000000..56c7dd0
--- /dev/null
+++ b/tests/unit-tests/security/v2/certificate-cache.t.cpp
@@ -0,0 +1,108 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2017 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "security/v2/certificate-cache.hpp"
+
+#include "../../identity-management-time-fixture.hpp"
+#include "boost-test.hpp"
+
+namespace ndn {
+namespace security {
+namespace v2 {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(Security)
+BOOST_AUTO_TEST_SUITE(V2)
+
+class CertificateCacheFixture : public ndn::tests::IdentityManagementTimeFixture
+{
+public:
+  CertificateCacheFixture()
+    : certCache(time::seconds(10))
+  {
+    identity = addIdentity("/TestCertificateCache/");
+    cert = identity.getDefaultKey().getDefaultCertificate();
+  }
+
+public:
+  CertificateCache certCache;
+  Identity identity;
+  Certificate cert;
+};
+
+BOOST_FIXTURE_TEST_SUITE(TestCertificateCache, CertificateCacheFixture)
+
+BOOST_AUTO_TEST_CASE(RemovalTime)
+{
+  // Cache lifetime is capped to 10 seconds during cache construction
+
+  BOOST_CHECK_NO_THROW(certCache.insert(cert));
+  BOOST_CHECK(certCache.find(cert.getName()) != nullptr);
+
+  advanceClocks(time::seconds(11), 1);
+  BOOST_CHECK(certCache.find(cert.getName()) == nullptr);
+
+  BOOST_CHECK_NO_THROW(certCache.insert(cert));
+  BOOST_CHECK(certCache.find(cert.getName()) != nullptr);
+
+  advanceClocks(time::seconds(5));
+  BOOST_CHECK(certCache.find(cert.getName()) != nullptr);
+
+  advanceClocks(time::seconds(15));
+  BOOST_CHECK(certCache.find(cert.getName()) == nullptr);
+}
+
+BOOST_AUTO_TEST_CASE(FindByInterest)
+{
+  BOOST_CHECK_NO_THROW(certCache.insert(cert));
+
+  // Find by interest
+  BOOST_CHECK(certCache.find(Interest(cert.getIdentity())) != nullptr);
+  BOOST_CHECK(certCache.find(Interest(cert.getKeyName())) != nullptr);
+  BOOST_CHECK(certCache.find(Interest(Name(cert.getName()).appendVersion())) == nullptr);
+
+  advanceClocks(time::seconds(12));
+  BOOST_CHECK(certCache.find(Interest(cert.getIdentity())) == nullptr);
+
+  Certificate cert3 = addCertificate(identity.getDefaultKey(), "3");
+  Certificate cert4 = addCertificate(identity.getDefaultKey(), "4");
+  Certificate cert5 = addCertificate(identity.getDefaultKey(), "5");
+
+  certCache.insert(cert3);
+  certCache.insert(cert4);
+  certCache.insert(cert5);
+
+  Interest interest4(cert3.getKeyName());
+  interest4.setExclude(Exclude().excludeOne(cert3.getName().at(Certificate::ISSUER_ID_OFFSET)));
+  BOOST_CHECK(certCache.find(interest4) != nullptr);
+  BOOST_CHECK_NE(certCache.find(interest4)->getName(), cert3.getName());
+
+  // TODO cover more cases with different interests
+}
+
+BOOST_AUTO_TEST_SUITE_END() // TestCertificateCache
+BOOST_AUTO_TEST_SUITE_END() // V2
+BOOST_AUTO_TEST_SUITE_END() // Security
+
+} // namespace tests
+} // namespace v2
+} // namespace security
+} // namespace ndn