1 files changed, 138 insertions, 0 deletions
diff --git a/src/lib/dns/tests/rdata_nsec_unittest.cc b/src/lib/dns/tests/rdata_nsec_unittest.cc
new file mode 100644
index 0000000..570a2ab
--- /dev/null
+++ b/src/lib/dns/tests/rdata_nsec_unittest.cc
@@ -0,0 +1,138 @@
+// Copyright (C) 2010-2017 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 <string>
+
+#include <util/buffer.h>
+#include <dns/exceptions.h>
+#include <dns/messagerenderer.h>
+#include <dns/rdata.h>
+#include <dns/rdataclass.h>
+#include <dns/rrclass.h>
+#include <dns/rrtype.h>
+
+#include <gtest/gtest.h>
+
+#include <dns/tests/unittest_util.h>
+#include <dns/tests/rdata_unittest.h>
+#include <util/unittests/wiredata.h>
+
+using namespace std;
+using namespace isc::dns;
+using namespace isc::util;
+using namespace isc::dns::rdata;
+using isc::UnitTestUtil;
+using isc::util::unittests::matchWireData;
+
+namespace {
+class Rdata_NSEC_Test : public RdataTest {
+    // there's nothing to specialize
+};
+
+const char* const nsec_txt = "www2.isc.org. CNAME RRSIG NSEC";
+
+TEST_F(Rdata_NSEC_Test, toText_NSEC) {
+    const generic::NSEC rdata_nsec(nsec_txt);
+    EXPECT_EQ(nsec_txt, rdata_nsec.toText());
+}
+
+TEST_F(Rdata_NSEC_Test, badText_NSEC) {
+    EXPECT_THROW(generic::NSEC rdata_nsec("www.isc.org. BIFF POW SPOON"),
+                 InvalidRdataText);
+    EXPECT_THROW(generic::NSEC rdata_nsec("www.isc.org."),
+                 InvalidRdataText);
+}
+
+TEST_F(Rdata_NSEC_Test, createFromWire_NSEC) {
+    const generic::NSEC rdata_nsec(nsec_txt);
+    EXPECT_EQ(0, rdata_nsec.compare(
+                  *rdataFactoryFromFile(RRType::NSEC(), RRClass::IN(),
+                                        "rdata_nsec_fromWire1")));
+
+    // Too short RDLENGTH
+    EXPECT_THROW(rdataFactoryFromFile(RRType::NSEC(), RRClass::IN(),
+                                      "rdata_nsec_fromWire2"),
+                 DNSMessageFORMERR);
+
+    // Invalid bitmap cases are tested in Rdata_NSECBITMAP_Test.
+}
+
+TEST_F(Rdata_NSEC_Test, createFromLexer_NSEC) {
+    const generic::NSEC rdata_nsec(nsec_txt);
+    EXPECT_EQ(0, rdata_nsec.compare(
+        *test::createRdataUsingLexer(RRType::NSEC(), RRClass::IN(),
+                                     nsec_txt)));
+
+    // test::createRdataUsingLexer() constructs relative to
+    // "example.org." origin.
+    EXPECT_EQ(0, generic::NSEC("www2.example.org. CNAME RRSIG NSEC").compare(
+        *test::createRdataUsingLexer(RRType::NSEC(), RRClass::IN(),
+                                     "www2 CNAME RRSIG NSEC")));
+
+    // Exceptions cause NULL to be returned.
+    EXPECT_FALSE(test::createRdataUsingLexer(RRType::NSEC(), RRClass::IN(),
+                                             "www.isc.org."));
+}
+
+TEST_F(Rdata_NSEC_Test, toWireRenderer_NSEC) {
+    renderer.skip(2);
+    const generic::NSEC rdata_nsec(nsec_txt);
+    rdata_nsec.toWire(renderer);
+
+    vector<unsigned char> data;
+    UnitTestUtil::readWireData("rdata_nsec_fromWire1", data);
+    matchWireData(&data[2], data.size() - 2,
+                  static_cast<const uint8_t *>(renderer.getData()) + 2,
+                  renderer.getLength() - 2);
+}
+
+TEST_F(Rdata_NSEC_Test, toWireBuffer_NSEC) {
+    const generic::NSEC rdata_nsec(nsec_txt);
+    rdata_nsec.toWire(obuffer);
+}
+
+TEST_F(Rdata_NSEC_Test, assign) {
+    generic::NSEC rdata_nsec(nsec_txt);
+    generic::NSEC rdata_nsec2 = rdata_nsec;
+    EXPECT_EQ(0, rdata_nsec.compare(rdata_nsec2));
+}
+
+TEST_F(Rdata_NSEC_Test, getNextName) {
+    // The implementation is quite trivial, so we simply check it's actually
+    // defined and does work as intended in a simple case.
+    EXPECT_EQ(Name("www2.isc.org"), generic::NSEC((nsec_txt)).getNextName());
+}
+
+TEST_F(Rdata_NSEC_Test, compare) {
+    // trivial case: self equivalence
+    EXPECT_EQ(0, generic::NSEC("example. A").
+              compare(generic::NSEC("example. A")));
+    EXPECT_EQ(0, generic::NSEC("EXAMPLE. A"). // should be case insensitive
+              compare(generic::NSEC("example. A")));
+
+    // comparison attempt between incompatible RR types should be rejected
+    EXPECT_THROW(generic::NSEC(nsec_txt).compare(*rdata_nomatch),
+                 bad_cast);
+
+    // test RDATAs, sorted in the ascending order.  We only compare the
+    // next name here.  Bitmap comparison is tested in the bitmap tests.
+    // Note that names are compared as wire-format data, not based on the
+    // domain name comparison.
+    vector<generic::NSEC> compare_set;
+    compare_set.push_back(generic::NSEC("a.example. A"));
+    compare_set.push_back(generic::NSEC("example. A"));
+    vector<generic::NSEC>::const_iterator it;
+    const vector<generic::NSEC>::const_iterator it_end = compare_set.end();
+    for (it = compare_set.begin(); it != it_end - 1; ++it) {
+        SCOPED_TRACE("compare " + it->toText() + " to " + (it + 1)->toText());
+        EXPECT_GT(0, (*it).compare(*(it + 1)));
+        EXPECT_LT(0, (*(it + 1)).compare(*it));
+    }
+}
+
+}