1 files changed, 55 insertions, 0 deletions
diff --git a/src/lib/cryptolink/tests/crypto_unittests.cc b/src/lib/cryptolink/tests/crypto_unittests.cc
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+++ b/src/lib/cryptolink/tests/crypto_unittests.cc
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+// Copyright (C) 2011-2018 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include <config.h>
+
+#include <gtest/gtest.h>
+
+#include <util/encode/hex.h>
+
+#include <cryptolink/cryptolink.h>
+#include <cryptolink/crypto_rng.h>
+
+using namespace std;
+using namespace isc::cryptolink;
+
+// Test get version
+TEST(CryptoLinkTest, Version) {
+    EXPECT_NO_THROW(CryptoLink::getVersion());
+}
+
+// Tests whether getCryptoLink() returns a singleton instance
+TEST(CryptoLinkTest, Singleton) {
+    const CryptoLink& c1 = CryptoLink::getCryptoLink();
+    const CryptoLink& c2 = CryptoLink::getCryptoLink();
+    ASSERT_EQ(&c1, &c2);
+}
+
+// Tests whether getRNG() returns a global value
+TEST(CryptoLinkTest, GlobalRNG) {
+    CryptoLink& c = CryptoLink::getCryptoLink();
+    RNGPtr rng1 = c.getRNG();
+    RNGPtr rng2 = c.getRNG();
+    ASSERT_EQ(rng1, rng2);
+}
+
+// Tests whether RNG works
+TEST(CryptoLinkTest, RNG) {
+    RNGPtr rng = CryptoLink::getCryptoLink().getRNG();
+    vector<uint8_t> data;
+    ASSERT_NO_THROW(data = rng->random(16));
+    ASSERT_EQ(16, data.size());
+    vector<uint8_t> zero;
+    zero.resize(16);
+    EXPECT_NE(0, memcmp(&zero[0], &data[0], zero.size()));
+
+    // Retry with the function (vs method)
+    vector<uint8_t> dataf;
+    ASSERT_NO_THROW(dataf = random(16));
+    ASSERT_EQ(16, dataf.size());
+    EXPECT_NE(0, memcmp(&zero[0], &dataf[0], zero.size()));
+    EXPECT_NE(0, memcmp(&data[0], &dataf[0], zero.size()));
+}