[2164] Add toWire() test for Message class with RRSIG records

src/lib/dns/tests/message_unittest.cc

@@ -743,6 +743,45 @@ TEST_F(MessageTest, toWire) {
                         renderer.getLength(), &data[0], data.size());
 }
 
+TEST_F(MessageTest, toWireSigned) {
+    message_render.setQid(0x75c1);
+    message_render.setOpcode(Opcode::QUERY());
+    message_render.setRcode(Rcode::NOERROR());
+    message_render.setHeaderFlag(Message::HEADERFLAG_QR, true);
+    message_render.setHeaderFlag(Message::HEADERFLAG_RD, true);
+    message_render.setHeaderFlag(Message::HEADERFLAG_AA, true);
+    message_render.addQuestion(Question(Name("test.example.com"), RRClass::IN(),
+                                        RRType::A()));
+
+    rrset_rrsig = RRsetPtr(new RRset(test_name, RRClass::IN(),
+                                     RRType::RRSIG(), RRTTL(3600)));
+    // one signature algorithm (5 = RSA/SHA-1)
+    rrset_rrsig->addRdata(generic::RRSIG("A 5 3 3600 "
+                                         "20000101000000 20000201000000 "
+                                         "12345 example.com. FAKEFAKEFAKE"));
+    // another signature algorithm (3 = DSA/SHA-1)
+    rrset_rrsig->addRdata(generic::RRSIG("A 3 3 3600 "
+                                         "20000101000000 20000201000000 "
+                                         "12345 example.com. FAKEFAKEFAKE"));
+    rrset_a->addRRsig(rrset_rrsig);
+
+    const RRset* rr = dynamic_cast<const RRset*>(rrset_a.get());
+    EXPECT_EQ(2, rr->getSIGRdataCount());
+
+    message_render.addRRset(Message::SECTION_ANSWER, rrset_a, true);
+
+    EXPECT_EQ(1, message_render.getRRCount(Message::SECTION_QUESTION));
+    EXPECT_EQ(4, message_render.getRRCount(Message::SECTION_ANSWER));
+    EXPECT_EQ(0, message_render.getRRCount(Message::SECTION_AUTHORITY));
+    EXPECT_EQ(0, message_render.getRRCount(Message::SECTION_ADDITIONAL));
+
+    message_render.toWire(renderer);
+    vector<unsigned char> data;
+    UnitTestUtil::readWireData("message_toWire6", data);
+    EXPECT_PRED_FORMAT4(UnitTestUtil::matchWireData, renderer.getData(),
+                        renderer.getLength(), &data[0], data.size());
+}
+
 TEST_F(MessageTest, toWireInParseMode) {
     // toWire() isn't allowed in the parse mode.
     EXPECT_THROW(message_parse.toWire(renderer), InvalidMessageOperation);

src/lib/dns/tests/testdata/Makefile.am

@@ -86,7 +86,7 @@ EXTRA_DIST += message_fromWire17.spec message_fromWire18.spec
 EXTRA_DIST += message_fromWire19.spec message_fromWire20.spec
 EXTRA_DIST += message_fromWire21.spec message_fromWire22.spec
 EXTRA_DIST += message_toWire1 message_toWire2.spec message_toWire3.spec
-EXTRA_DIST += message_toWire4.spec message_toWire5.spec
+EXTRA_DIST += message_toWire6
 EXTRA_DIST += message_toText1.txt message_toText1.spec
 EXTRA_DIST += message_toText2.txt message_toText2.spec
 EXTRA_DIST += message_toText3.txt message_toText3.spec

src/lib/dns/tests/testdata/message_toWire6

@@ -0,0 +1,48 @@
+#
+# A simple DNS query message (with a signed response)
+# ID = 0x75c1
+# QR=1 (response), Opcode=0, AA=1, RD=1 (other fields are 0)
+# QDCOUNT=1, ANCOUNT=2, other COUNTS=0
+# Question: test.example.com. IN A
+# Answer:
+#  test.example.com. 3600 IN A 192.0.2.1
+#  test.example.com. 7200 IN A 192.0.2.2
+#
+75c1 8500
+0001 0004 0000 0000
+#(4) t  e  s  t (7) e  x  a  m  p  l  e (3) c  o  m  .
+ 04 74 65 73 74 07 65 78 61 6d 70 6c 65 03 63 6f 6d 00
+0001 0001
+# same name, fully compressed
+c0 0c
+# TTL=3600, A, IN, RDLENGTH=4, RDATA
+0001 0001 00000e10 0004 c0 00 02 01
+# mostly same, with the slight difference in RDATA
+c0 0c
+0001 0001 00000e10 0004 c0 00 02 02
+
+# signature 1
+
+# same name
+c0 0c
+# RRSIG, IN, TTL=3600, RDLENGTH=0x28 TYPE_COV=A ALGO=5 (RSA/SHA-1) LABELS=3 ORIG_TTL=3600
+002e 0001 00000e10 0028 0001 05 03 00000e10
+# SIG_EXPIRY=20000101000000 SIG_INCEP=20000201000000 KEY_ID=12345
+386d4380 38962200 3039
+#(7) e  x  a  m  p  l  e (3) c  o  m  .
+ 07 65 78 61 6d 70 6c 65 03 63 6f 6d 00
+# FAKEFAKEFAKE
+14 02 84 14 02 84 14 02 84
+
+# signature 2
+
+# same name
+c0 0c
+# RRSIG, IN, TTL=3600, RDLENGTH=0x28 TYPE_COV=A ALGO=3 (DSA/SHA-1) LABELS=3 ORIG_TTL=3600
+002e 0001 00000e10 0028 0001 03 03 00000e10
+# SIG_EXPIRY=20000101000000 SIG_INCEP=20000201000000 KEY_ID=12345
+386d4380 38962200 3039
+#(7) e  x  a  m  p  l  e (3) c  o  m  .
+ 07 65 78 61 6d 70 6c 65 03 63 6f 6d 00
+# FAKEFAKEFAKE
+14 02 84 14 02 84 14 02 84