tests: Change to updated naming conventions
Change-Id: I9351c669282c3c02fd533237489beeb10fe7d16d
Refs: #2497
diff --git a/tests/unit-tests/util/random.t.cpp b/tests/unit-tests/util/random.t.cpp
new file mode 100644
index 0000000..d56d84b
--- /dev/null
+++ b/tests/unit-tests/util/random.t.cpp
@@ -0,0 +1,113 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2015 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 "util/random.hpp"
+
+#include "boost-test.hpp"
+#include <boost/mpl/vector.hpp>
+
+#include <cmath>
+
+namespace ndn {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(UtilRandom)
+
+class PseudoRandomWord32
+{
+public:
+ static uint32_t
+ generate()
+ {
+ return random::generateWord32();
+ }
+};
+
+class PseudoRandomWord64
+{
+public:
+ static uint64_t
+ generate()
+ {
+ return random::generateWord64();
+ }
+};
+
+class SecureRandomWord32
+{
+public:
+ static uint32_t
+ generate()
+ {
+ return random::generateSecureWord32();
+ }
+};
+
+class SecureRandomWord64
+{
+public:
+ static uint64_t
+ generate()
+ {
+ return random::generateSecureWord64();
+ }
+};
+
+typedef boost::mpl::vector<PseudoRandomWord32,
+ PseudoRandomWord64,
+ SecureRandomWord32,
+ SecureRandomWord64> RandomGenerators;
+
+BOOST_AUTO_TEST_CASE_TEMPLATE(GoodnessOfFit, RandomGenerator, RandomGenerators)
+{
+ // Kolmogorov-Smirnov Goodness-of-Fit Test
+ // http://www.itl.nist.gov/div898/handbook/eda/section3/eda35g.htm
+
+ const size_t MAX_BINS = 32;
+ const uint32_t MAX_ITERATIONS = 35;
+
+ std::vector<uint32_t> counts(MAX_BINS, 0);
+
+ for (uint32_t i = 0; i < MAX_ITERATIONS; i++) {
+ counts[RandomGenerator::generate() % MAX_BINS]++;
+ }
+
+ std::vector<double> edf(MAX_BINS, 0.0);
+ double probability = 0.0;
+ for (size_t i = 0; i < MAX_BINS; i++) {
+ probability += 1.0 * counts[i] / MAX_ITERATIONS;
+ edf[i] = probability;
+ }
+
+ double t = 0.0;
+ for (size_t i = 0; i < MAX_BINS; i++) {
+ t = std::max(t, std::abs(edf[i] - (i * 1.0 / MAX_BINS)));
+ }
+
+ // Check if it is uniform distribution with confidence 0.95
+ // http://dlc.erieri.com/onlinetextbook/index.cfm?fuseaction=textbook.appendix&FileName=Table7
+ BOOST_WARN_LE(t, 0.230);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace ndn